Quick answer
Brett Adcock's net worth is estimated at $23.4 billion, according to the 2026 Forbes 400 list published in September 2026, where he debuted as the second-richest newcomer in America. The fortune rests on a single, extraordinary bet: his roughly 50% ownership stake in Figure AI, the humanoid robotics company he founded in 2022, which private investors valued at $39 billion in a September 2025 Series C round.
To put the velocity in perspective: Forbes estimated Adcock's wealth at just $1.4 billion in April 2024 and about $19 billion in February 2026. In roughly two and a half years, Figure's valuation climbed 15x — from $2.6 billion in its February 2024 Series B to $39 billion in September 2025 — and Adcock's paper fortune followed it up. This is one of the fastest billionaire-making runs of the AI era.
Brett Adcock net worth timeline
Adcock's wealth story is really the story of Figure AI's private valuation. Unlike public-company billionaires whose fortunes tick up and down daily with a stock price, Adcock's number moves in big steps, repriced each time Figure raises money. Here is the documented trail:
| Date | Estimated net worth | What drove it | Source |
|---|---|---|---|
| April 2024 | ~$1.4 billion | Series B valued Figure at $2.6B (Feb 2024) | Forbes |
| 2025 | ~$19.1 billion | Series C valued Figure at $39B (Sep 2025) | Forbes |
| February 2026 | ~$19 billion | Figure mark held; Hark founded | Forbes / NYT |
| September 2026 | $23.4 billion | Forbes 400 debut, 2nd-richest newcomer | Forbes 400 |
The September 2026 jump from $19 billion to $23.4 billion did not come from a new Figure round — the company last priced in September 2025. Forbes' 2026 list reflected updated modeling of his combined holdings, including his stake in Hark, the AI-device company he founded in 2025, which was valued at over $6 billion in a 2026 funding round.
Where the $23.4 billion lives
Forbes estimates Adcock owns about half of Figure AI. At the $39 billion Series C valuation, that implies a stake worth roughly $19.5 billion — about five-sixths of his total fortune. Everything else is supporting cast:
| Holding | Estimated value | Notes |
|---|---|---|
| Figure AI (~50% stake) | ~$19.5 billion | Series C, $39B valuation, Sep 2025 |
| Hark (founder, major stake) | Low single-digit billions (est.) | $6B+ valuation, 2026 round |
| Archer Aviation shares | Tens of millions (est.) | NYSE: ACHR, public since 2021 SPAC |
| Vettery exit proceeds | Tens of millions (est.) | Sold to Adecco for $110M, 2018 |
The concentration is the risk. When roughly 85% of your fortune traces to one private company's last funding round, your net worth is only as solid as the next investor's willingness to pay up. Figure's backers — Parkway Venture Capital, Nvidia, Intel Capital, Qualcomm Ventures, Salesforce, LG Technology Ventures, T-Mobile Ventures — put real money behind the $39 billion mark in September 2025, and secondary-market trading in 2026 has roughly held the line. But no public market has confirmed it yet.
The Figure AI bet behind the fortune
Figure AI was founded in 2022 in the San Jose area with a blunt mission: build commercially viable autonomous humanoid robots. The company moved fast. Its Figure 02 robot went to work at BMW's Spartanburg, South Carolina plant, where over roughly ten months the robots logged 1,250 operating hours, handled more than 90,000 parts, and helped assemble over 30,000 BMW X3 vehicles. In July 2026 BMW began deploying the successor, Figure 03, for logistics work at the same plant.
The money followed the machines. Figure raised $675 million at a $2.6 billion valuation in February 2024 (with OpenAI and Microsoft's Satya Nadella among the backers), then more than $1 billion at $39 billion in September 2025, led by Parkway Venture Capital. Total capital raised exceeds $1.9 billion. The company is scaling manufacturing at its BotQ facility, targeting 12,000 robots a year and reaching a pace of one robot per hour by April 2026 — and it tells investors it is aiming for $9 billion in revenue by 2029 on 200,000 deployed robots. For the full story of how Brett Adcock built this fortune from an Illinois farm to a $39 billion robotics company, that journey runs through three prior startups.
The 2026 Forbes 400 newcomer class
Adcock did not arrive alone. Technology dominated the 2026 Forbes 400 freshman class: 15 of the 34 newcomers came from tech, accounting for nearly 60% of all the new wealth on the list. The head of the class:
| 2026 Forbes 400 newcomer | Estimated net worth | Source of wealth |
|---|---|---|
| Greg Brockman | $25.5 billion | OpenAI co-founder |
| Brett Adcock | $23.4 billion | Figure AI |
| Dario & Daniela Amodei (+ 4 co-founders) | $15.5 billion each | Anthropic |
| Ali Ghodsi | $7.6 billion | Databricks |
| Palmer Luckey | $5.9 billion | Anduril |
What separates Adcock from most of the class is that he is a repeat founder who built his fortune across multiple companies — Vettery, Archer, Figure, and now Hark — rather than a single breakout. He is also one of the few whose wealth comes from physical AI: robots that do factory work, not chatbots or software.
How $23.4 billion compares
At $23.4 billion, Adcock sits around #111 in the world on Forbes' real-time ranking — richer than most household-name billionaires in older industries, and wealthier than nearly every other robotics founder on the planet. The one humanoid-robotics peer in his weight class is Wang Xingxing, founder of China's Unitree Robotics, whose fortune reached roughly $15.9 billion after Unitree's blockbuster August 2026 IPO — a direct US-vs-China robotics wealth rivalry now playing out in real time. (See our full Brett Adcock vs Wang Xingxing net worth comparison.)
Within American tech, Adcock's fortune now exceeds that of many longtime software billionaires — built in about four years from a standing start at Figure, versus the decades most fortunes take. That speed is the signature of the AI-era wealth boom: private valuations repricing in 15x leaps.
What could move the number next
Three things will decide whether $23.4 billion is a floor or a peak. First, Figure's next funding round: the company posted a job listing for a Head of Capital Formation to "raise tens of billions," suggesting a 2026–2027 round that could reprice the company well above $39 billion. Second, commercial proof: BMW's deployment and the BotQ ramp need to convert into the $9-billion-by-2029 revenue story investors are underwriting. Third, Hark: Adcock self-funded the AI-device lab with $100 million before raising $700 million at a $6 billion valuation — if its devices ship and sell, his second fortune starts compounding.
The honest caveat: every dollar of the $23.4 billion is an estimate of private-company value, not cash in a bank. Secondary-market trading in 2026 (Forge Global around $174, Hiive around $194 per share) has been broadly consistent with the Series C mark, but until Figure IPOs or raises again, the number is a model, not a market price.
Bottom line
Brett Adcock turned a farm-kid start in Moweaqua, Illinois into a $23.4 billion fortune by founding companies in sequence — Vettery ($110M exit), Archer Aviation (public via SPAC), Figure AI ($39B valuation), and now Hark ($6B valuation). The fortune is real in the Forbes sense and concentrated in the extreme: about 50% of one private robotics company. If humanoid robots become what Adcock says they will — a multi-trillion-dollar labor market — $23.4 billion may look like an early chapter. For the companies behind it all, see the full list of Brett Adcock's companies.
Frequently asked questions
What is Brett Adcock's net worth in 2026?
Brett Adcock's net worth is estimated at $23.4 billion, according to Forbes' 2026 Forbes 400 list published in September 2026, where he debuted as the second-richest newcomer. The figure is driven almost entirely by his estimated 50% stake in Figure AI, the humanoid robotics company he founded, which was valued at $39 billion in its September 2025 Series C round.
How did Brett Adcock become a billionaire?
Adcock is a serial founder. He co-founded the hiring marketplace Vettery in 2012 and sold it to Adecco for $110 million in 2018, then co-founded electric-aircraft maker Archer Aviation in 2018 (which went public via SPAC in 2021). The billionaire-making move was Figure AI, the humanoid robotics company he founded in 2022 — its valuation jumped 15x from $2.6 billion in February 2024 to $39 billion in September 2025, carrying his estimated net worth from around $1.4 billion in 2024 to $23.4 billion in 2026.
What percentage of Figure AI does Brett Adcock own?
Forbes estimates that Brett Adcock owns approximately 50% of Figure AI. At the company's $39 billion Series C valuation from September 2025, that stake alone is worth roughly $19.5 billion — the overwhelming bulk of his $23.4 billion fortune.
Is Brett Adcock on the Forbes 400?
Yes — Brett Adcock debuted on the 2026 Forbes 400 list as the second-richest newcomer, with an estimated net worth of $23.4 billion. Only OpenAI co-founder Greg Brockman ranked higher among that year's newcomers, at an estimated $25.5 billion.
Could Brett Adcock get even richer?
Possibly, but his fortune is unusually sensitive to a single private valuation. Figure AI last priced at $39 billion in September 2025, and any new funding round, a strong commercial ramp at the BotQ factory, or an eventual IPO could push his estimated net worth higher. Conversely, if private-market enthusiasm for humanoid robotics cools, the estimate could fall just as fast. He also owns a large stake in Hark, the AI-device startup he founded, which was valued at $6 billion in a 2026 funding round.
Is Brett Adcock married?
Yes. Forbes lists Brett Adcock's marital status as married, and he has three children. He keeps his family out of the public eye — his wife's name has not been publicly disclosed — and almost nothing about his private life appears in interviews or profiles.
How old is Brett Adcock in 2026?
Brett Adcock is 40 years old in 2026. He was born on April 6, 1986, in Moweaqua, Illinois, where he was raised on his family's third-generation corn and soybean farm. He graduated as valedictorian of Central A&M High School and earned a bachelor's degree in business administration from the University of Florida in 2008.
Where does Brett Adcock live?
According to Forbes, Brett Adcock lives in Palo Alto, California, in the heart of Silicon Valley — a short drive from Figure AI's headquarters in the San Jose area. He grew up in rural Illinois but has been based in California through his Archer Aviation and Figure AI years.