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Investor profile

Sam Altman

Angel investor · San Francisco, USA · Founded 2012 · Active in 2026

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A public taster of the full Dealroom platform — request a demo to explore live deal flow, full investor history, and team intel. · Last updated 15 Apr 2026 · Methodology

23 Power Law outcomes Power Law Ranking #78 · 23 Power Law outcomes · Active 2026
Enterprise value ↑ 235% 5y
$641B
Unicorns ↑ 25% 5y
20
Decacorns ↑ 25% 5y
5
Thoroughbreds ↑ 29% 5y
22
Featured in #78Power Law Investor Ranking · Global · 2026 Top 1%by Seed → $100M+ revenue outcomes

Sam Altman is an angel investor based in San Francisco, USA, founded in 2012. The page below shows 23 Power Law outcomes from Sam Altman's portfolio — 20 unicorns ($1B+ valuation) and 2 additional thoroughbreds (companies that crossed $100M+ in revenue without yet reaching $1B+ valuation).

Outcomes are concentrated in Other B2B Software · Fintech · Transportation; top portfolio geographies are USA · Senegal. Sam Altman ranks #78 globally in the 2026 Dealroom Power Law Ranking by Seed → $100M+ revenue companies.

Portfolio analysis

The 23 Sam Altman Power Law outcomes ($100M+ revenue and above).

Snapshot of where the outcomes are concentrated by country, sector, and stage entered.

By countryCount
  1. USA22
  2. Senegal1
By sectorCount
  1. Other B2B Software4
  2. Fintech4
  3. Transportation3
  4. Biotech & Life Sciences3
  5. Energy2
  6. AI2
  7. Edtech2
  8. eCommerce & Marketplaces2
  9. Other1
By stage enteredCount
  1. Series B+8
  2. Series A8
  3. Seed6
01 · Portfolio market map

Sam Altman's 23 Power Law outcomes.

Toggle between a sector landscape and a world map. Both views respond to the stage and outcome-tier filters. The faded names at the bottom of bigger boxes are part of the full list — click "+ N more" to reveal them.

Stage entered
Outcome tier
Region
Group by
23 of 23 Power Law outcomes
Logos hosted by Dealroom; click any chip to open the company in app.dealroom.co. The dot inside each chip shows the company's highest tier — red Gigacorn, violet Centicorn/Decacorn, lavender Unicorn, blue Thoroughbred, green Colt. Tiers are inclusive: a Unicorn (e.g. Klarna) also matches the Thoroughbred filter, a Decacorn also matches Unicorn and Thoroughbred, and so on up the ladder. Colt is a separate axis (high-growth, smaller revenue) and only matches itself. Map dots use the same colour code; hover for details. Sectors are mutually exclusive (priority-ordered classification). Stage entered = the round Sam Altman first invested in (where data is available — coverage 93%).
02 · Origin of portfolio founders

Where Sam Altman's founders come from — and where they study.

77 founders across the 23 Power Law outcomes — split by country of origin, university attended, and the company they worked at before founding. Stanford University and Alphabet | Google are the deepest single pipelines.

LocationCount
United States38
Netherlands4
Taiwan4
Russia3
Canada3
Slovakia3
Hong Kong2
South Africa2
Poland1
Germany1
View on app →
UniversityCount
Stanford University11
University of Pennsylvania4
Harvard University4
University of Cambridge3
Washington University in St. Louis3
Carnegie Mellon University3
Massachusetts Institute of Technology3
University of Waterloo2
University of Toronto2
Utrecht University2
+24 more →
Origin companyCount
Alphabet | Google9
Meta8
Microsoft5
Amazon2
Groupon2
SpaceX | xAI2
Mozilla2
Twitch2
Yelp2
PayPal2
+20 more →
Origin = country a founder is born in or grew up in (founders may have multiple origins; counts include all entries). University = highest-listed degree. Origin company = a previous employer where the founder was tagged before starting their current company. Explore the full Sequoia infographic on Thoroughbreds & Unicorns →
03 · Key people

Key people at Sam Altman.

Senior investment team at Sam Altman has not been published on this profile yet.
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04 · Compare with peers

How does Sam Altman stack up?

Sam Altman in orange, your selection in blue and other colours. Pick from the global roster of 35 peer investors — filter by region or hit "Find similar shapes" to auto-pick the three closest. The funnel matrix mirrors the spider chart on the ranking page; the line chart shows each firm's share of global unicorns minted that year — peaks reveal vintage years.

Compare against

Stage focus

Companies by entry stage and outcome tier

Sector focus

Companies per investor across the 10 highest-volume sectors

Share of new unicorns per year

% of all global unicorns minted that year, year by year
Source: Dealroom Power Law dataset. Investors shown are the 2026 Power Law top 35 by combined entry-to-outcome score, drawn from the overview and locations_data sheets. Funnel-matrix axes rescale per-axis using the maximum among the currently selected investors, so the polygons always fill the chart for shape comparison.

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Data as of 15 Apr 2026 · Source: Dealroom Power Law dataset · Methodology
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