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Sam Altman - portfolio and founded companies

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About Sam Altman

Sam Altman is an angel investor based out of San Francisco, United States. Their journey in the startup ecosystem started in 2005 through Loopt. Sam Altman has founded 1 company. They are currently acting as the, and as the co-founder of Loopt. As an angel investor, Sam Altman has a portfolio of 58 companies, focusing primarily on sectors like Enterprise Applications, High Tech and 26 more sectors. They invest in companies across United States, Pakistan and 2 more. Their most notable investments include companies like Stripe and Instacart.
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Sam Altman's Investments

Sam Altman has invested in 58 companies. Their most recent investment was in Preventive (Angel Round) on Nov 14, 2025. Their investments are primarily in Enterprise Applications, High Tech and 26 more sectors. Their investment portfolio include companies in United States, Pakistan and 2 more.
Here is the list of recent investments by Sam Altman:
Date
Company
Round
Round Amount
Co-Investors
Nov 14, 2025
Angel
$30M
Nov 13, 2025
Series A
$50M
Aug 09, 2024
Series B
$40M
Jun 17, 2024
Seed
$6.3M
View all Investments by Sam Altman
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Sam Altman's Portfolio Exits

Sam Altman has 19 Portfolio Exits including Instacart, Reddit, Asana and Cruise.
Here is the list of top portfolio exits by Sam Altman:
Company
Description
Location
Total Funding
Founded Year
Exit Type
Exit Date
Operator of an online marketplace providing grocery and delivery services
San Francisco (United States)
$2.93B
2012
IPO
Sep 19, 2023
Community based discussion platform
San Francisco (United States)
$1.62B
2005
Acquisition
Oct 31, 2006
Cloud-based platform offering project management software
San Francisco (United States)
$453M
2008
IPO
Oct 02, 2020
Platform offering solutions for autonomous car
San Francisco (United States)
$7.72B
2013
Acquisition
Mar 11, 2016
View all Portfolio Exits by Sam Altman

Sam Altman's Portfolio Unicorns

Sam Altman has 9 unicorns in the portfolio including Stripe, Patreon and 7 more.
Here is the list of top portfolio unicorns by Sam Altman:
Company
Short Description
Total Funding
Founded Year
Current Stage
Location
Provider of financial infrastructure solutions for revenue growth and payment processing
$9.81B
2010
Series I
San Francisco
Provider of a reward-based crowdfunding platform for musicians and content creators
$412M
2013
Series F
San Francisco
View all Portfolio Unicorns by Sam Altman

Sam Altman's Founded Companies

Sam Altman has founded Loopt.
Here is the detail of this founded company:
Company
Short Description
Total Funding
Founded Year
Current Stage
Location
Location sharing social networking app
$39.1M
2005
Acquired
Mountain View
View all Founded Companies by Sam Altman

Sam Altman's Top News

View all Top News of Sam Altman

FAQs about Sam Altman

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