{"header":{"generatedAt":"2026-08-05T23:40:39.574Z","profilesScanned":436,"profilesWithAnyData":329,"notes":"Compiled from content/editorial/people/*.mdx in 22 batches. The legacy founders array contains selected people profiles, including non-founders. Provenance fields contain excerpts from those profiles, not independently verified primary-source records. Historical coded values are retained for inspection; inclusion in this file does not establish founder eligibility or source accuracy.","methodologyUpdatedAt":"2026-09-07","limitations":["This is a selected editorial collection, not a representative sample of founders or companies. Founder eligibility has not been independently verified.","generatedAt records compilation, not fact verification. methodologyUpdatedAt records a correction to the method and public claims, not re-verification of the historical values.","Missing or unusable values are excluded separately for each exploratory summary. Coverage varies, and missingness is not random.","Ownership values mix IPO, exit, current, and peak milestones and must not be pooled as comparable ownership-retention measures.","The selfMadeVsInherited field includes non-founders and must not be used to estimate a self-made founder percentage.","Profile excerpts require checking against the underlying publication before being cited as verified facts. The dataset cannot establish causal effects on business success."]},"founders":[{"name":"A. G. Gaston","slug":"a-g-gaston","primaryCompany":"Booker T. Washington Insurance Company","ageAtFounding":null,"foundingYear":1913,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":null,"selfMadeVsInherited":"self-made","provenance":{"primaryCompany":"formally incorporated as the Booker T. Washington Insurance Company in 1923, became the foundation of Gaston's empire","foundingYear":"Initial capital for burial society (1913)","selfMadeVsInherited":"raise him alone in the grinding poverty of post-Reconstruction Alabama"}},{"name":"Abigail Johnson","slug":"abigail-johnson","primaryCompany":"Fidelity Investments","ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":"family and affiliates own ~40% of privately held Fidelity; her personal stake not stated","yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":null,"selfMadeVsInherited":"inherited","provenance":{"primaryCompany":"Abigail Johnson was named CEO of Fidelity Investments at the age of 52","ownershipNote":"roughly 40% owned by the Johnson family and their affiliates","selfMadeVsInherited":"giving her complete control over the firm her grandfather had founded seven decades earlier"}},{"name":"Abraham Lincoln","slug":"abraham-lincoln","primaryCompany":null,"ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":null,"selfMadeVsInherited":null,"provenance":{}},{"name":"Ada Lovelace","slug":"ada-lovelace","primaryCompany":null,"ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":null,"selfMadeVsInherited":null,"provenance":{}},{"name":"Adena T. Friedman","slug":"adena-t-friedman","primaryCompany":"Nasdaq","ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"CEO, not founder; founding-related variables not applicable/not stated","selfMadeVsInherited":null,"provenance":{"primaryCompany":"Nasdaq market capitalization (2025)"}},{"name":"Adi Tatarko","slug":"adi-tatarko","primaryCompany":"Houzz","ageAtFounding":null,"foundingYear":2009,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":1,"bootstrapped":false,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":4000000000,"valueNote":"peak reported valuation","selfMadeVsInherited":null,"provenance":{"primaryCompany":"produce a company valued at four billion dollars and reshape how tens of millions of people think about the insides of their homes","foundingYear":"In 2010, a year after the side project launched","yearsToFirstOutsideCapital":"In 2010, a year after the side project launched, Tatarko and Cohen secured their first outside investment: $2 million from Oren Zeev","bootstrapped":"Tatarko and Cohen secured their first outside investment: $2 million from Oren Zeev","peakValuationUsd":"$4B — Peak reported valuation"}},{"name":"Akio Morita","slug":"akio-morita","primaryCompany":"Sony","ageAtFounding":25,"foundingYear":1946,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":null,"selfMadeVsInherited":null,"provenance":{"primaryCompany":"In five years, no one will remember Sony. But if I reject it and spend the next fifty years selling Sony-branded products in America","ageAtFounding":"Akio, born January 26, 1921, was the fifteenth in line (founding capital dated 1946)","foundingYear":"$500 — Initial founding capital (1946)"}},{"name":"Albert Champion","slug":"albert-champion","primaryCompany":"AC Spark Plug Company","ageAtFounding":null,"foundingYear":1911,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":7000000,"peakValuationUsd":null,"valueNote":"exit: GM acquisition of his earlier Champion Ignition Company ($7M per stat block)","selfMadeVsInherited":null,"provenance":{"primaryCompany":"In March 1911, he founded AC Spark Plug Company in Flint, Michigan","foundingYear":"In March 1911, he founded AC Spark Plug Company in Flint, Michigan","exitValueUsd":"$7M — acquisition price (equivalent to $230M today)"}},{"name":"Albert Einstein","slug":"albert-einstein","primaryCompany":null,"ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":null,"selfMadeVsInherited":null,"provenance":{}},{"name":"Albert Lasker","slug":"albert-lasker","primaryCompany":"Lord & Thomas","ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":95,"ownershipNote":"ownership at dissolution of Lord & Thomas (1942); he joined rather than founded the agency","yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":null,"selfMadeVsInherited":"self-made","provenance":{"primaryCompany":"He would stay at Lord & Thomas for forty-four years","ownershipRetainedPct":"He owned 95 percent of an agency that had placed $750 million in advertisements under his direction","selfMadeVsInherited":"$40M+ — Personal fortune accumulated from advertising"}},{"name":"Alex Hormozi","slug":"alex-hormozi","primaryCompany":"Gym Launch","ageAtFounding":26,"foundingYear":2016,"ownershipRetainedPct":null,"ownershipNote":"sold a 66% majority stake at exit, implying majority ownership retained until sale; exact pre-sale stake not stated","yearsToFirstOutsideCapital":null,"bootstrapped":true,"priorFailures":2,"firstRevenueOrProfitYear":null,"exitValueUsd":46200000,"peakValuationUsd":null,"valueNote":"exit: sale of 66% stake in Gym Launch and Prestige Labs to American Pacific Group (2021)","selfMadeVsInherited":"self-made","provenance":{"primaryCompany":"Gym Launch, as it was now formalized, would sell gym owners the right to use Hormozi's ... systems","ageAtFounding":"Hormozi was left with approximately $1,000 in cash and a pile of credit card debt. He was twenty-six.","foundingYear":"In 2016, broke for the second time and running out of options, Hormozi had an insight","bootstrapped":"without outside investment, without venture capital, without the scaffolding that most scaling narratives require","priorFailures":"In 2016, broke for the second time and running out of options","exitValueUsd":"Hormozi sold a 66% stake in Gym Launch and Prestige Labs to American Pacific Group for $46.2 million","selfMadeVsInherited":"A small brick-and-mortar operation funded by personal savings that were, to put it delicately, finite"}},{"name":"Alexander Graham Bell","slug":"alexander-graham-bell","primaryCompany":null,"ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":false,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":null,"selfMadeVsInherited":null,"provenance":{"bootstrapped":"By 1874 they had agreed to fund Bell's electrical experiments in exchange for a share of any resulting inventions"}},{"name":"Alexander Hamilton","slug":"alexander-hamilton","primaryCompany":null,"ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":null,"selfMadeVsInherited":null,"provenance":{}},{"name":"Alexander the Great","slug":"alexander-the-great","primaryCompany":null,"ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":null,"selfMadeVsInherited":null,"provenance":{}},{"name":"Alfred Lee Loomis","slug":"alfred-lee-loomis","primaryCompany":null,"ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":null,"selfMadeVsInherited":null,"provenance":{}},{"name":"Alfred Sloan","slug":"alfred-sloan","primaryCompany":"General Motors","ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"operator/CEO, not founder; founding variables not stated","selfMadeVsInherited":null,"provenance":{"primaryCompany":"In 1923, at age forty-eight, Alfred Sloan became president and chief executive officer of General Motors"}},{"name":"Alice Schwartz","slug":"alice-schwartz","primaryCompany":"Bio-Rad Laboratories","ageAtFounding":null,"foundingYear":1952,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":null,"selfMadeVsInherited":"self-made","provenance":{"primaryCompany":"1952 — Year Bio-Rad Laboratories was founded","foundingYear":"To have co-founded a company in 1952 as a woman with scientific training","selfMadeVsInherited":"She is a self-made billionaire"}},{"name":"Alice Waters","slug":"alice-waters","primaryCompany":"Chez Panisse","ageAtFounding":null,"foundingYear":1971,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":null,"selfMadeVsInherited":null,"provenance":{"primaryCompany":"1971 — Year Chez Panisse opened on Shattuck Avenue, Berkeley","foundingYear":"1971 — Year Chez Panisse opened on Shattuck Avenue, Berkeley"}},{"name":"Amancio Ortega","slug":"amancio-ortega","primaryCompany":"Zara (Inditex)","ageAtFounding":null,"foundingYear":1975,"ownershipRetainedPct":59,"ownershipNote":"current stake in Inditex per stat block (company went public 2001)","yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":1,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":null,"selfMadeVsInherited":"self-made","provenance":{"primaryCompany":"became the founder of Zara and the parent company Inditex, the largest fashion retailer on Earth","foundingYear":"On May 9, 1975, a few blocks from the Gala shirt shop where he had started as a delivery boy","ownershipRetainedPct":"59% — Ortega's stake in Inditex","priorFailures":"He tried retail once, in 1971, with a store called Sprint. It failed.","selfMadeVsInherited":"a company he built from a living-room workshop in a rainy Spanish backwater"}},{"name":"Anastasia Soare","slug":"anastasia-soare","primaryCompany":"Anastasia Beverly Hills","ageAtFounding":null,"foundingYear":1997,"ownershipRetainedPct":62,"ownershipNote":"retained at the 2018 TPG minority-stake deal, the stated peak-valuation event","yearsToFirstOutsideCapital":21,"bootstrapped":true,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":3000000000,"valueNote":"peak valuation: 2018 TPG deal valuing the company at roughly $3 billion","selfMadeVsInherited":"self-made","provenance":{"primaryCompany":"The story of Anastasia Beverly Hills","foundingYear":"$60K — Cost to open first Beverly Hills salon (1997)","ownershipRetainedPct":"Soare would keep 62 percent and remain CEO","yearsToFirstOutsideCapital":"built all of this without a single dollar of outside investment. Then TPG came calling. (first salon 1997; TPG deal announced June 2018)","bootstrapped":"Soare had built all of this without a single dollar of outside investment","peakValuationUsd":"valuing the company at roughly $3 billion","selfMadeVsInherited":"arrived in Los Angeles in 1989 with a one-year-old daughter, zero cents of American money"}},{"name":"Andre Agassi","slug":"andre-agassi","primaryCompany":null,"ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":null,"selfMadeVsInherited":null,"provenance":{}},{"name":"Andrew Carnegie","slug":"andrew-carnegie","primaryCompany":"Carnegie Steel","ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":"text states he 'owned the majority of Carnegie Steel'; exact percentage not stated","yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":480000000,"peakValuationUsd":null,"valueNote":"exit: sale of Carnegie Steel to J.P. 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What remained was a clapped-out 1937 Austin 7."}},{"name":"Conrad Hilton","slug":"conrad-hilton","primaryCompany":"Hilton Hotels Corporation","ageAtFounding":null,"foundingYear":1919,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":27,"bootstrapped":false,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":25000000,"valueNote":"peak stated valuation event: ~$25M at 1946 IPO; estimated net worth $1B+ at death (1979)","selfMadeVsInherited":null,"provenance":{"primaryCompany":"1946 — year Hilton Hotels Corporation went public","foundingYear":"1919 — year he bought his first hotel","yearsToFirstOutsideCapital":"In 1946, Hilton took his company public, raising $8.5 million (first hotel bought 1919)","bootstrapped":"In 1946, Hilton took his company public, raising $8.5 million","peakValuationUsd":"an initial public offering that valued Hilton Hotels Corporation at approximately $25 million"}},{"name":"Constantine the Great","slug":"constantine-the-great","primaryCompany":null,"ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":null,"selfMadeVsInherited":null,"provenance":{}},{"name":"Cornelius Vanderbilt","slug":"cornelius-vanderbilt","primaryCompany":null,"ageAtFounding":16,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"no single named company; defining venture = ferry/steamship business begun at 16, later railroads; $100M personal fortune at death","selfMadeVsInherited":"self-made","provenance":{"ageAtFounding":"$100 — Loan from his mother to buy his first boat at age 16","selfMadeVsInherited":"$100 — Loan from his mother to buy his first boat at age 16"}},{"name":"Cristóbal Balenciaga","slug":"crist-bal-balenciaga","primaryCompany":"House of Balenciaga","ageAtFounding":42,"foundingYear":1937,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"first atelier opened 1917 at age 22 in San Sebastián; Paris house (the defining one) opened 1937; house sold after his death","selfMadeVsInherited":null,"provenance":{"primaryCompany":"1937 — Fled to Paris; opened salon at 10 Avenue George V","ageAtFounding":"He was forty-two years old — the same age, as it happens, at which Christian Dior would later present his first collection","foundingYear":"1937 — Fled to Paris; opened salon at 10 Avenue George V"}},{"name":"Daniel Ek","slug":"daniel-ek","primaryCompany":"Spotify","ageAtFounding":23,"foundingYear":2006,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":145000000000,"valueNote":"peak stated: ~$145B market capitalization (2025)","selfMadeVsInherited":"self-made","provenance":{"primaryCompany":"They founded Spotify AB in Stockholm in 2006","ageAtFounding":"In the spring of 2006, a twenty-three-year-old Swede who had already made and spent a small fortune","foundingYear":"They founded Spotify AB in Stockholm in 2006","peakValuationUsd":"$145B — Approximate market capitalization (2025)","selfMadeVsInherited":"who had sold his online advertising company Advertigo to Tradedoubler for roughly $1.25 million"}},{"name":"Daniel Gross","slug":"daniel-gross","primaryCompany":"Cue","ageAtFounding":16,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":50000000,"peakValuationUsd":null,"valueNote":"exit: Apple acquired Cue in 2013 for a reported $40–60M (midpoint recorded)","selfMadeVsInherited":null,"provenance":{"primaryCompany":"At sixteen, he co-founded Cue, a personal search and assistant application","ageAtFounding":"At sixteen, he co-founded Cue","exitValueUsd":"Apple acquired it in 2013 for a reported $40-60 million"}},{"name":"Daniel Ludwig","slug":"daniel-ludwig","primaryCompany":null,"ageAtFounding":19,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"shipping/conglomerate empire of 200+ companies with no single named defining company; 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Shake Shack's $740M+ is annual revenue, not a valuation","selfMadeVsInherited":null,"provenance":{"primaryCompany":"40 — Years since Union Square Cafe opened (1985)","ageAtFounding":"He was twenty-seven. 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acquired by WPP in a 1989 hostile takeover (price not stated)","selfMadeVsInherited":"self-made","provenance":{"primaryCompany":"The agency he founded with $6,000 in 1948 now operates in over ninety countries","ageAtFounding":"Why not start an advertising agency?\" He was thirty-eight years old.","foundingYear":"$6,000 — Cash on hand when he founded his agency in 1948","yearsToFirstOutsideCapital":"In 1966, Ogilvy & Mather became one of the first advertising agencies in history to go publ[ic]","bootstrapped":"In 1966, Ogilvy & Mather became one of the first advertising agencies in history to go publ[ic]","selfMadeVsInherited":"The senior Ogilvy's brokerage failed during the post-war downturn of the 1920s, and the family ... was forced to move"}},{"name":"David Packard","slug":"david-packard","primaryCompany":"Hewlett-Packard","ageAtFounding":null,"foundingYear":1939,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":18,"bootstrapped":true,"priorFailures":null,"firstRevenueOrProfitYear":1940,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"self-financed from retained earnings until the 1957 IPO; ~$4B personal fortune at death (not a company valuation event)","selfMadeVsInherited":null,"provenance":{"primaryCompany":"The founding of Hewlett-Packard in 1939 is the original Silicon Valley creation myth","foundingYear":"The founding of Hewlett-Packard in 1939","yearsToFirstOutsideCapital":"Another decade after that — 1957 — the company went public with annual sales around $30 million","bootstrapped":"Packard and Hewlett financed expansion almost entirely from retained earnings, refusing to take on significant debt","firstRevenueOrProfitYear":"By 1940, the company had ten employees, annual sales of roughly $30,000, and had outgrown the garage"}},{"name":"David Siegel","slug":"david-siegel","primaryCompany":"Westgate Resorts","ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"profile covers two different David Siegels (Westgate Resorts founder and Two Sigma co-founder); founding details not stated for either","selfMadeVsInherited":null,"provenance":{"primaryCompany":"22 — Westgate Resorts properties across the U.S."}},{"name":"Debbie Fields","slug":"debbie-fields","primaryCompany":"Mrs. Fields","ageAtFounding":20,"foundingYear":1977,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":1977,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"started with a $50K loan; company sold to an investment group in 1993 (price not stated); $450M peak annual revenue is revenue, not a valuation","selfMadeVsInherited":"self-made","provenance":{"primaryCompany":"600+ — Mrs. Fields stores at peak expansion across 10 countries","ageAtFounding":"20 — Age when she opened her first cookie store in Palo Alto, 1977","foundingYear":"20 — Age when she opened her first cookie store in Palo Alto, 1977","firstRevenueOrProfitYear":"By the end of the day, she had sold $75 worth of cookies","selfMadeVsInherited":"with no business experience, no MBA, no family money, and no industry connections"}},{"name":"Dee Hock","slug":"dee-hock","primaryCompany":"Visa (National BankAmericard Inc.)","ageAtFounding":null,"foundingYear":1970,"ownershipRetainedPct":null,"ownershipNote":"NBI/Visa was owned by its member banks; Hock held no controlling stake","yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"founding president/CEO of a member-owned cooperative, not an equity founder","selfMadeVsInherited":null,"provenance":{"primaryCompany":"The result was National BankAmericard Inc. — NBI — formed in 1970, with Hock as its first president and CEO","foundingYear":"National BankAmericard Inc. — NBI — formed in 1970","ownershipNote":"It was owned by its member banks. No single institution controlled it."}},{"name":"Denise Coates","slug":"denise-coates","primaryCompany":"Bet365","ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":58.3,"ownershipNote":"current shareholding (stat block); company has never taken outside investors","yearsToFirstOutsideCapital":null,"bootstrapped":true,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"family fortune £9.45B (2025 Sunday Times Rich List) is personal wealth, not a stated company valuation","selfMadeVsInherited":"self-made","provenance":{"primaryCompany":"By 2014, the pre-tax profits of Bet365 exceeded £319 million","ownershipRetainedPct":"58.3% — Denise Coates's shareholding","bootstrapped":"she had financed the venture by mortgaging family assets ... had no outside investors to answer to","selfMadeVsInherited":"the richest self-made businesswoman in Britain"}},{"name":"Diane Hendricks","slug":"diane-hendricks","primaryCompany":"ABC Supply","ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":100,"ownershipNote":"current sole ownership; never went public, never sold a share","yearsToFirstOutsideCapital":null,"bootstrapped":true,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"financed via a $900,000 bank loan pledging everything the couple owned; $20.7B is annual revenue, not a valuation","selfMadeVsInherited":"self-made","provenance":{"primaryCompany":"$20.7B — 2024 annual revenue [ABC Supply stat block]","ownershipRetainedPct":"100% — Diane Hendricks' ownership stake","bootstrapped":"There were no outside shareholders, no quarterly earnings calls, no analysts demanding guidance","selfMadeVsInherited":"the most successful self-made female entrepreneur in American history"}},{"name":"Dietrich Mateschitz","slug":"dietrich-mateschitz","primaryCompany":"Red Bull GmbH","ageAtFounding":41,"foundingYear":1984,"ownershipRetainedPct":49,"ownershipNote":"49% stake held from founding through his life (49/49/2 split with the Yoovidhya family)","yearsToFirstOutsideCapital":null,"bootstrapped":true,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"$27.4B estimated personal net worth at death (2022) is personal wealth, not a stated company valuation","selfMadeVsInherited":"self-made","provenance":{"primaryCompany":"Each took a 49% stake in the new company, Red Bull GmbH, incorporated in Austria","ageAtFounding":"Mateschitz quit Blendax. 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With the proceeds ... they bought a knitting machine.","selfMadeVsInherited":"With the proceeds — a sum so modest it belongs to the realm of founding myths — they bought a knitting machine"}},{"name":"Glenn Curtiss","slug":"glenn-curtiss","primaryCompany":"Curtiss aircraft companies","ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":1,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"Herring-Curtiss Company (1909) collapsed almost immediately; sold a considerable portion of his stock in 1920, amount never disclosed","selfMadeVsInherited":null,"provenance":{"primaryCompany":"~10,000 — Aircraft produced by Curtiss companies during WWI","priorFailures":"it collapsed almost immediately when Herring failed to deliver on promised assets"}},{"name":"Gordon Moore","slug":"gordon-moore","primaryCompany":"Intel","ageAtFounding":39,"foundingYear":1968,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"co-founded Intel with Noyce, each putting up $250,000 of their own money; previously co-founded Fairchild Semiconductor (1957)","selfMadeVsInherited":null,"provenance":{"primaryCompany":"On July 18, 1968, the two men incorporated a venture they would call Intel","ageAtFounding":"94 — Years lived (1929–2023) [Intel incorporated July 18, 1968]","foundingYear":"On July 18, 1968, the two men incorporated a venture they would call Intel"}},{"name":"Grigory Rasputin","slug":"grigory-rasputin","primaryCompany":null,"ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":null,"selfMadeVsInherited":null,"provenance":{}},{"name":"Gwynne Shotwell","slug":"gwynne-shotwell","primaryCompany":"SpaceX","ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"employee #11 and president/COO, not a founder ('She did not found SpaceX'); company valued at ~$350B (late 2024)","selfMadeVsInherited":null,"provenance":{"primaryCompany":"She is the eleventh employee of a company now valued at roughly $350 billion"}},{"name":"Hannibal Barca","slug":"hannibal-barca","primaryCompany":null,"ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":null,"selfMadeVsInherited":null,"provenance":{}},{"name":"Hans Wilsdorf","slug":"hans-wilsdorf","primaryCompany":"Rolex (Wilsdorf & Davis, Ltd.)","ageAtFounding":24,"foundingYear":1905,"ownershipRetainedPct":null,"ownershipNote":"company is today owned entirely by a charitable foundation, with no public shareholders","yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"co-founder Alfred James Davis was 'a British casemaker with capital to invest'","selfMadeVsInherited":"self-made","provenance":{"primaryCompany":"In 1905, at the age of twenty-four, Wilsdorf and Davis founded their eponymous company: Wilsdorf & Davis, Ltd.","ageAtFounding":"In 1905, at the age of twenty-four, Wilsdorf and Davis founded their eponymous company","foundingYear":"In 1905, at the age of twenty-four, Wilsdorf and Davis founded their eponymous company","ownershipNote":"the company that produces this icon of capitalism is owned, entirely, by a charitable foundation","selfMadeVsInherited":"thieves stole his inheritance — 33,000 German gold marks ... He arrived in England functionally broke"}},{"name":"Harold Hamm","slug":"harold-hamm","primaryCompany":"Continental Resources","ageAtFounding":null,"foundingYear":1967,"ownershipRetainedPct":68,"ownershipNote":"approximately 68% stake at the 2007 IPO; family stake ~83% after the 2022 take-private","yearsToFirstOutsideCapital":40,"bootstrapped":true,"priorFailures":null,"firstRevenueOrProfitYear":1972,"exitValueUsd":null,"peakValuationUsd":25600000000,"valueNote":"peak: 2022 take-private deal valued Continental at ~$25.6B; first outside capital = 2007 IPO, 40 years after founding","selfMadeVsInherited":null,"provenance":{"primaryCompany":"1967 — Year Continental Resources founded","foundingYear":"1967 — Year Continental Resources founded","ownershipRetainedPct":"when the company went public in 2007, gave Hamm's approximately sixty-eight percent stake a value","yearsToFirstOutsideCapital":"Its share price, when the company went public in 2007 [founded 1967]","bootstrapped":"built the company slowly through the 1970s and 1980s","firstRevenueOrProfitYear":"Five years after founding the company, he drilled his first well ... It produced","peakValuationUsd":"took Continental Resources private in a deal valued at approximately $25.6 billion"}},{"name":"Harry Snyder","slug":"harry-snyder","primaryCompany":"In-N-Out Burger","ageAtFounding":null,"foundingYear":1948,"ownershipRetainedPct":null,"ownershipNote":"never franchised, never went public; ownership passed through the family to granddaughter Lynsi Snyder","yearsToFirstOutsideCapital":null,"bootstrapped":true,"priorFailures":null,"firstRevenueOrProfitYear":1948,"exitValueUsd":null,"peakValuationUsd":3000000000,"valueNote":"peak: current estimated company valuation ($3B+), decades after his 1976 death","selfMadeVsInherited":null,"provenance":{"primaryCompany":"57 — Burgers sold on opening day, October 22, 1948","foundingYear":"On October 22, 1948, he and his wife Esther sold fifty-seven hamburgers","ownershipNote":"never franchised, never went public, never froze a patty","bootstrapped":"a chain that grew slowly on purpose ... never franchised, never went public","firstRevenueOrProfitYear":"On October 22, 1948, he and his wife Esther sold fifty-seven hamburgers","peakValuationUsd":"The company is worth, conservatively, $3 billion"}},{"name":"Haruki Murakami","slug":"haruki-murakami","primaryCompany":"Peter Cat (jazz bar)","ageAtFounding":null,"foundingYear":1974,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"novelist; sold his jazz bar (opened 1974) to write full-time — sale price not stated","selfMadeVsInherited":null,"provenance":{"primaryCompany":"Peter Cat opened in 1974, first in Kokubunji","foundingYear":"Peter Cat opened in 1974, first in Kokubunji"}},{"name":"Henry Clay Frick","slug":"henry-clay-frick","primaryCompany":"H.C. 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net worth $100–200M at death (1916); base capital inherited from family whaling fortune","selfMadeVsInherited":"inherited","provenance":{"valueNote":"In a world of leveraged partnerships and spectacular bankruptcies, her solitary structure was her greatest competitive advantage","selfMadeVsInherited":"The portion of her wealth derived from Sylvia Ann Howland's estate reverted, under the terms of the 1863 will"}},{"name":"Horatio Nelson","slug":"horatio-nelson","primaryCompany":null,"ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":null,"selfMadeVsInherited":null,"provenance":{}},{"name":"Hortensia Herrero","slug":"hortensia-herrero","primaryCompany":"Mercadona","ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":28,"ownershipNote":"28% shareholder and vice president; husband Juan Roig holds 51%","yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"with her husband, acquired the family business (eight small stores) from Juan's father in 1981, price not public; family control maintained throughout","selfMadeVsInherited":null,"provenance":{"primaryCompany":"her position as vice president and 28% shareholder of Mercadona","ownershipRetainedPct":"28% — Herrero's ownership stake in Mercadona"}},{"name":"Howard Hughes","slug":"howard-hughes","primaryCompany":"Hughes Aircraft Company","ageAtFounding":null,"foundingYear":1932,"ownershipRetainedPct":100,"ownershipNote":"bought out relatives' shares in inherited Hughes Tool Company for $325,000, gaining complete control","yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":546000000,"peakValuationUsd":null,"valueNote":"exit: sold TWA in 1966 for $546M (acquired control 1939 for $7.5M); empire worth over $1.5B by 1960; Hughes Tool inherited at 18","selfMadeVsInherited":"inherited","provenance":{"primaryCompany":"In 1932, he founded Hughes Aircraft Company in a hangar at Glendale Airport","foundingYear":"In 1932, he founded Hughes Aircraft Company in a hangar at Glendale Airport, initially employing just twelve people","ownershipRetainedPct":"Hughes bought out his relatives' shares in the company for $325,000, gaining complete control","exitValueUsd":"In 1966, Hughes sold TWA for $546 million—then the largest stock transaction in Wall Street history","selfMadeVsInherited":"On Christmas Eve 1923, eighteen-year-old Howard Robard Hughes Jr. stood in the Houston offices of Hughes Tool Comp[any]"}},{"name":"Huda Kattan","slug":"huda-kattan","primaryCompany":"Huda Beauty","ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":100,"ownershipNote":"bought back full ownership from TSG Consumer Partners by June 2025","yearsToFirstOutsideCapital":null,"bootstrapped":true,"priorFailures":null,"firstRevenueOrProfitYear":2013,"exitValueUsd":null,"peakValuationUsd":1250000000,"valueNote":"peak: $1.25B valuation at 2017 TSG minority investment; started with a $6,000 loan from her sister; first product to unicorn in 5 years","selfMadeVsInherited":"self-made","provenance":{"primaryCompany":"As of mid-2024, Huda Beauty had generated north of $300 million in year-to-date sales","ownershipRetainedPct":"Kattan had bought back full ownership of her company from TSG Consumer Partners","bootstrapped":"$6,000 — Initial investment — a loan from her sister","firstRevenueOrProfitYear":"Retail sales hit $1.5 million in 2013","peakValuationUsd":"$1.25B — Valuation at 2017 TSG investment","selfMadeVsInherited":"$6,000 — Initial investment — a loan from her sister"}},{"name":"Indra Nooyi","slug":"indra-nooyi","primaryCompany":"PepsiCo","ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"professional CEO (2006–2018), not a founder; first woman of color and immigrant to lead a Fortune 50 company","selfMadeVsInherited":null,"provenance":{"primaryCompany":"12 — Years as CEO — fifth in PepsiCo's 42-year history"}},{"name":"Ingvar Kamprad","slug":"ingvar-kamprad","primaryCompany":"IKEA","ageAtFounding":17,"foundingYear":1943,"ownershipRetainedPct":null,"ownershipNote":"never issued a single share; ownership transferred to the Stichting Ingka Foundation in the early 1980s — no Kamprad family member holds shares","yearsToFirstOutsideCapital":null,"bootstrapped":true,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"net worth estimated at $58.7B at death (Bloomberg) — personal estimate, not a stated company valuation; didn't sell furniture until 1948, first store 1958","selfMadeVsInherited":null,"provenance":{"primaryCompany":"He was seventeen. It was the same year he registered IKEA.","ageAtFounding":"He was seventeen. It was the same year he registered IKEA.","foundingYear":"In 1943, Ingvar Kamprad founded a business that would become a global emblem of egalitarian design","ownershipNote":"The Foundation owns itself. No Kamprad family member holds shares.","bootstrapped":"without ever issuing a single share of stock, taking a dollar of outside capital, or borrowing meaningful money"}},{"name":"Isaac Newton","slug":"isaac-newton","primaryCompany":null,"ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":null,"selfMadeVsInherited":null,"provenance":{}},{"name":"Isabella of Castile","slug":"isabella-of-castile","primaryCompany":null,"ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":null,"selfMadeVsInherited":null,"provenance":{}},{"name":"Isadore Sharp","slug":"isadore-sharp","primaryCompany":"Four Seasons Hotels","ageAtFounding":null,"foundingYear":1961,"ownershipRetainedPct":5,"ownershipNote":"retained 5% and chairmanship after selling to Bill Gates's Cascade Investment and Prince Al-Waleed","yearsToFirstOutsideCapital":0,"bootstrapped":false,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"first hotel financed with $90,000 from his father Max plus money from a brother-in-law and a friend","selfMadeVsInherited":"self-made","provenance":{"primaryCompany":"1961 — Year the first hotel opened on Jarvis Street","foundingYear":"1961 — Year the first hotel opened on Jarvis Street","ownershipRetainedPct":"Sharp retained a 5 percent ownership stake and remained chairman","yearsToFirstOutsideCapital":"His father, Max, put up $90,000. His brother-in-law and a friend e[ach contributed]","bootstrapped":"His father, Max, put up $90,000. His brother-in-law and a friend","selfMadeVsInherited":"He was a plasterer by trade and a builder by determination [his immigrant father]"}},{"name":"Isambard Kingdom Brunel","slug":"isambard-kingdom-brunel","primaryCompany":null,"ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"engineer (Great Western Railway, SS Great Britain), not a company founder","selfMadeVsInherited":null,"provenance":{}},{"name":"Ivar Kreuger","slug":"ivar-kreuger","primaryCompany":"Kreuger & Toll / Swedish Match","ageAtFounding":null,"foundingYear":1911,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":1,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"empire collapsed as a fraud — $250M+ imaginary earnings, $140M forged bonds; died by suicide 1932; prior failure = a Philadelphia restaurant that folded","selfMadeVsInherited":"self-made","provenance":{"primaryCompany":"In 1911, Kreuger & Toll incorporated with a quarter of a million dollars in capital","foundingYear":"In 1911, Kreuger & Toll incorporated with a quarter of a million dollars in capital","priorFailures":"then Philadelphia, where he opened another restaurant that folded rapidly","selfMadeVsInherited":"He was twenty but looked sixteen. He had less than a hundred dollars."}},{"name":"J.K. Rowling","slug":"j-k-rowling","primaryCompany":null,"ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":"retained rights leverage over the Harry Potter universe rather than selling rights outright","yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"author; net worth ~$1.2B (Forbes 2025) — personal wealth, first author to reach billionaire status","selfMadeVsInherited":"self-made","provenance":{"ownershipNote":"Most writers sell rights and move on. Rowling retained leverage.","selfMadeVsInherited":"making her one of only five female self-made billionaires in the world"}},{"name":"J.P. Morgan","slug":"j-p-morgan","primaryCompany":"J.P. 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Universa reached $16B+ AUM by 2021","selfMadeVsInherited":null,"provenance":{"primaryCompany":"In 2007, Spitznagel founded Universa Investments","foundingYear":"In 2007, Spitznagel founded Universa Investments","yearsToFirstOutsideCapital":"founded Universa Investments with the backing of several prominent investors, including PayPal co-founder Peter Thiel","bootstrapped":"with the backing of several prominent investors"}},{"name":"Mark Twain","slug":"mark-twain","primaryCompany":null,"ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"author; his publishing house Webster & Company collapsed and he lost $300,000+ on the Paige Typesetter; earlier a failed silver prospector","selfMadeVsInherited":null,"provenance":{"valueNote":"He sank a fortune — estimates run well past $300,000 in 1880s dollars"}},{"name":"Mark Zuckerberg","slug":"mark-zuckerberg","primaryCompany":"Facebook","ageAtFounding":19,"foundingYear":2004,"ownershipRetainedPct":null,"ownershipNote":"co-founder Saverin's stake was diluted from 30% to under 10%; Zuckerberg's own percentage not stated","yearsToFirstOutsideCapital":0,"bootstrapped":false,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":104000000000,"valueNote":"peak (as stated): $104B valuation at the May 2012 IPO, then the largest tech IPO ever; Thiel invested $500K in year one; Saverin provided the initial $15,000","selfMadeVsInherited":null,"provenance":{"primaryCompany":"19 — Age when Facebook launched","ageAtFounding":"19 — Age when Facebook launched","foundingYear":"1 million — Users by end of 2004","ownershipNote":"reducing his ownership from 30% to less than 10%","yearsToFirstOutsideCapital":"$500,000 — Peter Thiel's initial investment","bootstrapped":"Saverin, who had provided Facebook's initial $15,000 in funding and held a 30% stake","peakValuationUsd":"The company raised $16 billion at a valuation of $104 billion"}},{"name":"Martha Stewart","slug":"martha-stewart","primaryCompany":"Martha Stewart Living Omnimedia","ageAtFounding":35,"foundingYear":1976,"ownershipRetainedPct":96,"ownershipNote":"controlled 96% of voting shares at the 1999 IPO","yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":353000000,"peakValuationUsd":1800000000,"valueNote":"peak: ~$1.8B valuation at 1999 IPO; exit: Sequential Brands acquired MSLO for $353M (2015); began as a basement catering business in 1976","selfMadeVsInherited":"self-made","provenance":{"primaryCompany":"the consolidation of all her enterprises under a single entity: Martha Stewart Living Omnimedia","ageAtFounding":"thirty-five years old, a former stockbroker who had recently started a catering business from the basement","foundingYear":"In 1976, she started a catering business from the basement with a partner named Norma Collier","ownershipRetainedPct":"Stewart, who controlled 96 percent of the voting shares, became a billionaire","exitValueUsd":"$353M — Sequential Brands Group acquisition price (2015)","peakValuationUsd":"The company's valuation surged to nearly $1.8 billion","selfMadeVsInherited":"the first self-made female billionaire in American history"}},{"name":"Martine Rothblatt","slug":"martine-rothblatt","primaryCompany":"Sirius Satellite Radio / United Therapeutics","ageAtFounding":null,"foundingYear":1990,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":0,"bootstrapped":false,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":14700000000,"valueNote":"peak: United Therapeutics $14.7B market cap (2024); founded UT with $3M from selling Sirius shares after her daughter's PAH diagnosis; SiriusXM now valued ~$19B","selfMadeVsInherited":null,"provenance":{"primaryCompany":"Sirius Satellite Radio launched in 1990","foundingYear":"Sirius Satellite Radio launched in 1990","yearsToFirstOutsideCapital":"She raised capital on Wall Street, protected by patents","bootstrapped":"She raised capital on Wall Street","peakValuationUsd":"$14.7B — United Therapeutics market capitalization (2024)"}},{"name":"Mary Barra","slug":"mary-barra","primaryCompany":"General Motors","ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"professional CEO since 2014, not a founder; joined GM at eighteen","selfMadeVsInherited":null,"provenance":{}},{"name":"Mary Kay Ash","slug":"mary-kay-ash","primaryCompany":"Mary Kay Cosmetics","ageAtFounding":45,"foundingYear":1963,"ownershipRetainedPct":null,"ownershipNote":"took the company private again in a 1985 family leveraged buyout after the 1968 IPO","yearsToFirstOutsideCapital":5,"bootstrapped":true,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"founded with $5,000 in September 1963 after quitting a job where a man she had trained was made her supervisor; ~$1M sales by end of year two; $3.5B+ peak annual retail revenue","selfMadeVsInherited":"self-made","provenance":{"primaryCompany":"$5,000 — Initial investment, September 1963","ageAtFounding":"She quit. She was forty-five.","foundingYear":"$5,000 — Initial investment, September 1963","ownershipNote":"In 1985, Mary Kay Ash and her family took the company private in a leveraged buyout","yearsToFirstOutsideCapital":"The company went public on the New York Stock Exchange in 1968, five years after opening","bootstrapped":"$5,000 — Initial investment, September 1963","selfMadeVsInherited":"the final insult came when a man she had trained was named her supervisor at double her salary. She quit."}},{"name":"Mary West","slug":"mary-west","primaryCompany":null,"ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":true,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"telecom and healthcare operator with near-zero public record; net worth $1.9B+ (Forbes); the profile itself notes the source material is thin","selfMadeVsInherited":null,"provenance":{"bootstrapped":"she did so without the institutional support of venture capital"}},{"name":"Maureen Wheeler","slug":"maureen-wheeler","primaryCompany":"Lonely Planet","ageAtFounding":null,"foundingYear":1973,"ownershipRetainedPct":25,"ownershipNote":"sold 75% to the BBC in 2007, retaining 25% sold four years later","yearsToFirstOutsideCapital":null,"bootstrapped":true,"priorFailures":null,"firstRevenueOrProfitYear":1973,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"exit: total sale price to the BBC was £130.2M across 2007–2011 (GBP, not converted); first book self-published after arriving in Sydney with twenty-seven cents","selfMadeVsInherited":"self-made","provenance":{"primaryCompany":"1973 — Year of first publication","foundingYear":"1973 — Year of first publication","ownershipRetainedPct":"The Wheelers sold 75% of the company in 2007 ... retaining a 25% stake they would sell four years later","ownershipNote":"The Wheelers sold 75% of the company in 2007, reportedly for approximately £130 million in total","bootstrapped":"Twenty-seven cents between them, plus a camera they promptly sold","firstRevenueOrProfitYear":"The first print run sold out in a week. Within three months, 8,000 copies had been sold.","selfMadeVsInherited":"They arrived in Sydney just after Christmas 1972. Twenty-seven cents between them"}},{"name":"Maya Angelou","slug":"maya-angelou","primaryCompany":null,"ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":null,"selfMadeVsInherited":null,"provenance":{}},{"name":"Meg Whitman","slug":"meg-whitman","primaryCompany":"eBay","ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"professional CEO (eBay 1998–2008, HP, Quibi), not a founder","selfMadeVsInherited":null,"provenance":{}},{"name":"Mei Xu","slug":"mei-xu","primaryCompany":"Chesapeake Bay Candle","ageAtFounding":null,"foundingYear":1994,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":75000000,"peakValuationUsd":null,"valueNote":"exit: Newell Brands acquired the company for a reported ~$75M (September 2017), twenty-three years after the basement founding","selfMadeVsInherited":null,"provenance":{"primaryCompany":"1994 — Year Chesapeake Bay Candle was founded","foundingYear":"1994, Mei Xu and David Wang both quit their jobs","exitValueUsd":"The reported acquisition price was approximately $75 million"}},{"name":"Mel & Patricia Ziegler","slug":"mel-patricia-ziegler","primaryCompany":"Banana Republic","ageAtFounding":null,"foundingYear":1978,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":true,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"founded with $1,500 total capital; sold to Gap founder Don Fisher in 1983, five years after founding (price not stated); ran it until 1988; later founded Republic of Tea (1992, sold 1994)","selfMadeVsInherited":null,"provenance":{"primaryCompany":"5 — Years from founding to Gap acquisition (1978–1983)","foundingYear":"$1,500 — Total capital at founding (1978)","bootstrapped":"$1,500 — Total capital at founding (1978)"}},{"name":"Melanie Perkins","slug":"melanie-perkins","primaryCompany":"Canva","ageAtFounding":null,"foundingYear":2013,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":0,"bootstrapped":false,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":32000000000,"valueNote":"peak: $32B valuation (2025) on $3B revenue and 8 consecutive profitable years; seed capital raised in 2012 before the 2013 incorporation; earlier founded Fusion Books (2007) at nineteen","selfMadeVsInherited":null,"provenance":{"primaryCompany":"Canva, a visual communications platform now valued at $32 billion","foundingYear":"The company was incorporated in Sydney on January 1, 2013","yearsToFirstOutsideCapital":"the team secured a $1.5 million seed round in early 2012","bootstrapped":"the team secured a $1.5 million seed round in early 2012","peakValuationUsd":"$32B — Current valuation (2025)"}},{"name":"Melinda Gates","slug":"melinda-gates","primaryCompany":"Pivotal Ventures","ageAtFounding":null,"foundingYear":2015,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"philanthropist and investor; 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only three early employees hold small equity stakes","yearsToFirstOutsideCapital":null,"bootstrapped":true,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"seeded with his $10M+ Salomon partnership payout the day after being fired; $10B+ annual revenue; personal net worth $106B+ (Forbes 2025)","selfMadeVsInherited":null,"provenance":{"primaryCompany":"The name Bloomberg chose for the venture — Innovative Market Systems","ageAtFounding":"He was thirty-nine years old, fired from the only full-time job he had ever known ... 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His son Michele was twenty-four."}},{"name":"The Michelin Brothers (André & Édouard)","slug":"michelin-brothers","primaryCompany":"Michelin","ageAtFounding":null,"foundingYear":1889,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":true,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"took over a failing family rubber factory in 1889 and rebuilt it; the enterprise was passed generation to generation rather than sold","selfMadeVsInherited":"inherited","provenance":{"primaryCompany":"1889 — Year the brothers took over the failing family business","foundingYear":"1889 — Year the brothers took over the failing family business","bootstrapped":"They did not seek outside capital. 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joined CTR (later IBM) as general manager in 1914 at $25,000 a year; IBM revenues exceeded $700M at his death (1956)","selfMadeVsInherited":null,"provenance":{}},{"name":"Tiger Woods","slug":"tiger-woods","primaryCompany":null,"ageAtFounding":null,"foundingYear":null,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"athlete, not a founder; ~$1.7B estimated career earnings; $660M total Nike contracts over 27 years","selfMadeVsInherited":null,"provenance":{}},{"name":"Tobi Lütke","slug":"tobi-l-tke","primaryCompany":"Shopify","ageAtFounding":null,"foundingYear":2004,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"IPO May 21, 2015 raised $131M; market cap ~$120B (mid-2025); 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The number, according to multiple sources, was $4 million. [her father]"}},{"name":"Vinod Khosla","slug":"vinod-khosla","primaryCompany":"Sun Microsystems (later Khosla Ventures)","ageAtFounding":27,"foundingYear":1982,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":1,"firstRevenueOrProfitYear":null,"exitValueUsd":7400000000,"peakValuationUsd":null,"valueNote":"exit: Oracle acquired Sun for $7.4B (2010), long after Khosla left; Sun peaked at a $150B market cap; before Sun he co-founded Daisy Systems (revenue, profits, IPO); net worth ~$4.9B (Forbes 2022)","selfMadeVsInherited":null,"provenance":{"primaryCompany":"Sun Microsystems was incorporated in February 1982. 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Studio)","ageAtFounding":null,"foundingYear":1923,"ownershipRetainedPct":null,"ownershipNote":"after losing Oswald to his distributor in 1928, 'Walt Disney saw to it that he owned everything he made'","yearsToFirstOutsideCapital":null,"bootstrapped":true,"priorFailures":1,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"Laugh-O-Gram went bankrupt (1923); arrived in Los Angeles with $40; Disney's market cap was $80M when Buffett invested (1966), months before Disney's death","selfMadeVsInherited":null,"provenance":{"primaryCompany":"$500 — Total capital for the first Disney Bros. picture (1923)","foundingYear":"$500 — Total capital for the first Disney Bros. picture (1923)","ownershipNote":"From that day forward, Walt Disney saw to it that he owned everything he made.","bootstrapped":"$500 — Total capital for the first Disney Bros. picture (1923)","priorFailures":"By 1923, he was bankrupt. He bought a one-way first-class ticket to Los Angeles. He had forty dollars."}},{"name":"Walter Beech","slug":"walter-beech","primaryCompany":"Beech Aircraft Corporation (earlier Travel Air)","ageAtFounding":null,"foundingYear":1932,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":0,"bootstrapped":false,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":3000000,"peakValuationUsd":null,"valueNote":"exit figure is Travel Air, acquired by Curtiss-Wright for $3M in 1930 'a fraction of its peak valuation'; Beech Aircraft founded with $25,000; 9,000+ military aircraft delivered in WWII","selfMadeVsInherited":null,"provenance":{"primaryCompany":"On April 16, 1932, Walter and Olive Ann Beech, along with investor Ted Wells, incorporated the Beech Aircraft Corporation","foundingYear":"On April 16, 1932, Walter and Olive Ann Beech, along with investor Ted Wells, incorporated the Beech Aircraft Corporation","yearsToFirstOutsideCapital":"Walter and Olive Ann Beech, along with investor Ted Wells, incorporated the Beech Aircraft Corporation","bootstrapped":"Walter and Olive Ann Beech, along with investor Ted Wells, incorporated the Beech Aircraft Corporation","exitValueUsd":"In 1930, the Curtiss-Wright Corporation acquired Travel Air for $3 million, a fraction of its peak valuation"}},{"name":"Walter Chrysler","slug":"walter-chrysler","primaryCompany":"Chrysler Corporation","ageAtFounding":null,"foundingYear":1924,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":1924,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"career railroad and auto executive who bought Maxwell's assets for $25M (1923); $500M annual sales at his 1935 retirement; 3rd among U.S. automakers by 1930","selfMadeVsInherited":null,"provenance":{"primaryCompany":"Walter negotiated to purchase Maxwell's assets for $25 million","foundingYear":"32,000 — Chrysler cars sold in first year (1924)","firstRevenueOrProfitYear":"Chrysler sold over 32,000 cars in 1924, generating revenue of approximately $50 million"}},{"name":"Wang Laichun","slug":"wang-laichun","primaryCompany":"Luxshare Precision Industry","ageAtFounding":null,"foundingYear":2004,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"ex-Foxconn worker; $37B+ revenue (2024); IPO on the Shenzhen SME board (2010); net worth $10.6B (Feb 2026)","selfMadeVsInherited":"self-made","provenance":{"primaryCompany":"in 2004, she and her brother Wang Laisheng co-founded Luxshare Precision Industry Co., Ltd., in Dongguan","foundingYear":"in 2004, she and her brother Wang Laisheng co-founded Luxshare Precision Industry Co., Ltd.","selfMadeVsInherited":"She is the seventh-richest self-made woman in the world."}},{"name":"Warren Buffett","slug":"warren-buffett","primaryCompany":"Berkshire Hathaway (Buffett Partnership Ltd.)","ageAtFounding":25,"foundingYear":1956,"ownershipRetainedPct":null,"ownershipNote":null,"yearsToFirstOutsideCapital":null,"bootstrapped":null,"priorFailures":null,"firstRevenueOrProfitYear":null,"exitValueUsd":null,"peakValuationUsd":null,"valueNote":"partnership launched with $105,000 from family and friends plus $100 of his own; took control of Berkshire in 1965 at ~$19/share; $1.16T market cap by 2025; 19.9% compounded annual return over 60 years","selfMadeVsInherited":null,"provenance":{"primaryCompany":"When Buffett took control of a failing New England textile mill called Berkshire Hathaway in 1965","ageAtFounding":"He was twenty-five years old. 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He was eighteen. 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She was twenty-two. ... The seed capital was HK$20,000","ageAtFounding":"It was 1993. She was twenty-two.","foundingYear":"It was 1993. She was twenty-two.","ownershipRetainedPct":"Zhou Qunfei owned 98 percent of the company","ownershipNote":"Her husband, Zheng Junlong, who served as Vice Chairman, owned 1.4 percent","bootstrapped":"The seed capital was HK$20,000 — approximately US$2,547.80 at the time","selfMadeVsInherited":"named her the richest self-made woman in the world"}}]}