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Sam Altman — Portfolio, Page 2

Investor actively backing innovative startups and growth-stage companies across various industries and funding rounds.

48
Companies
$712.9M
Total invested
$18.8M
Avg. check
48
Industries
Artificial Intelligence (AI) 6Biotechnology 5Health Care 4Therapeutics 3Information Technology 3Software 3+42 more
Founder contacts

Verified emails & LinkedIn for founders across this portfolio.

jane@on●●●●●●●.com
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Portfolio companies

Showing 25–48 of 48
Conception
November 2021

Conception is a company developing the technology to turn skin cells into viable human eggs.

Biotechnology · Berkeley$20.0M Venture - Series Unknown
Red Queen Bio
November 2025

Red Queen Bio works with frontier labs to map AI-enabled biothreats and pre-build medical countermeasures against them.

Artificial Intelligence (AI) · Boston$15.0M Seed
1910 Genetics
October 2024

1910 Genetics is a biotechnology company integrating AI, computation, and biological automation to improve drug development.

Artificial Intelligence (AI) · BostonVenture - Series Unknown
Terraformation
October 2024

Terraformation wants to solve climate change.

Agriculture · Kamuela$4.2M Grant
teachme.to
September 2025

Teachme.to is a community of learners discovering lessons for everything.

EdTech · San Diego$3.0M Seed
Longshot Space Technologies
June 2025

Longshot Space develops hypersonic launch technologies to reduce space launch costs.

Aerospace · EmeryvilleSeries Unknown
Helion Energy
January 2025

Helion Energy develops fusion power technology for clean electricity generation.

Energy · Everett$425.0M Series F
Ashvattha Therapeutics
January 2025

Ashvattha Therapeutics is a clinical-stage biopharmaceutical company that develops precision nanomedicines for ophthalmology diseases.

Biotechnology · Redwood City$50.0M Series B
NOYACK
December 2024

Agentic AI for Millennials to DIY their wealth management and build net worth.

Asset Management · New York$3.0M Seed
Beacon AI
August 2024

Beacon AI builds pilot assistant technology, effectively R2-D2 for pilots.

Air Transportation · San Francisco$15.0M Series A
ValueBase
June 2024

ValueBase is a software provider that focuses on offering cutting-edge options for real estate assessment.

Information Technology · Austin$6.3M Seed
Software Applications Incorporated
November 2023

Rethinking the personal computing experience

Artificial Intelligence (AI) · San Francisco$6.5M Seed
Induced AI
October 2023

Induced AI works to automate browser tasks.

Artificial Intelligence (AI) · Bangalore$2.3M Seed
Arkham Intelligence
April 2023

Arkham Intelligence provides intelligence on cryptocurrency networks and the entities behind them.

Artificial Intelligence (AI) · New York$12.0M Series A
Queer Spaces
January 2023

Queer Spaces develops a group chat platform for queer communities and an app for the LGBTQ+ spectrum.

Developer Platform · Los AngelesSeed
TipTop
May 2022

TipTop is an electronics resale platform.

Consumer Electronics · Anaheim$23.0M Series A
Retro Biosciences
April 2022

Retro Biosciences focuses on cellular reprogramming, autophagy, and plasma-inspired therapeutics.

Biopharma · Redwood City$180.0M Angel
Matrix
August 2021

Revolutionizing monetization and retention tools

Cryptocurrency · Foster City$5.0M Seed
Doorbell Health
December 2020

Doorbell Health is an online marketplace for insurance-covered medical equipment.

Health Care · Los Angeles$2.5M Seed
Realtime
December 2020

Realtime is a social network built around bridging the offline-to-online divide

Social Media · San Francisco$4.0M Seed
Exec
May 2012

Exec is a house cleaning service that users can book from their iPhone or the web in real-time.

Housekeeping Service · San Francisco$3.3M Seed

Where Sam Altman invests

Artificial Intelligence (AI)6
Biotechnology5
Health Care4
Therapeutics3
Information Technology3
Software3

About Sam Altman's portfolio

How many companies has Sam Altman invested in?▸

Sam Altman has invested in 48 companies tracked in our database. The portfolio spans multiple industries and funding stages, from seed-stage startups to late-stage companies.

What industries does Sam Altman invest in?▸

Sam Altman's top investment sectors include Artificial Intelligence (AI), Biotechnology, Health Care, Therapeutics, Information Technology. The firm invests across 48 different industry categories.

What is Sam Altman's largest investment?▸

Among tracked funding rounds, Helion Energy received $425.0M in a Series F round. Sam Altman's total known invested capital is $712.9M.

What is the average investment size for Sam Altman?▸

Sam Altman's average investment size is $18.8M across its portfolio of 48 companies.

What are Sam Altman's most recent investments?▸

Recent Sam Altman portfolio additions include Conception, Red Queen Bio, 1910 Genetics, Terraformation, teachme.to. These companies were founded in 2020 or later.

Reach the founders behind these 48 companies
Verified emails and LinkedIn profiles, updated monthly.
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