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Trevor Blackwell - portfolio and founded companies

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About Trevor Blackwell

Trevor Blackwell is an entrepreneur and an angel investor based out of Chipping Campden, United Kingdom. They did their Bachelors from Carleton in 1992. Their journey in the startup ecosystem started in 2005 through Y Combinator. Trevor Blackwell has founded 3 companies. They are currently acting as the founder of Umbrella Research. Prior to this, Trevor Blackwell co-founded OpenAI and Y Combinator. As an angel investor, Trevor Blackwell has a portfolio of 5 companies, focusing primarily on sectors like High Tech, Enterprise Applications and 6 more sectors. They invest in companies across United States. Their most notable investments include companies like Stoke and Volantis Semiconductor.
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Location
Chipping Campden, United Kingdom
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Trevor Blackwell's Investments

Trevor Blackwell has invested in 5 companies. Their most recent investment was in Architect (Seed Round) on Jun 18, 2026. Their investments are primarily in High Tech, Enterprise Applications and 6 more sectors. Their investment portfolio companies are located in United States.
Here is the list of recent investments by Trevor Blackwell:
Date
Company
Round
Round Amount
Co-Investors
Jun 18, 2026
Seed
$24M
Nov 01, 2025
Seed
$4.1M
Jun 12, 2025
Seed
$9M
Feb 25, 2021
Seed
$9.1M
View all Investments by Trevor Blackwell
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Trevor Blackwell's Portfolio Unicorns

Trevor Blackwell has 1 unicorn in the portfolio which is Stoke.
Here is the detail of this portfolio unicorn:
Company
Short Description
Total Funding
Founded Year
Current Stage
Location
Manufacturer of reusable launch vehicles
$1.34B
2019
Series D
Kent
View all Portfolio Unicorns by Trevor Blackwell

Trevor Blackwell's Founded Companies

Trevor Blackwell has founded 3 companies namely OpenAI, Y Combinator and Umbrella Research.
Here are the details of all founded companies by Trevor Blackwell:
Company
Short Description
Total Funding
Founded Year
Current Stage
Location
Artificial intelligence research and development platform offering advanced language models
$180B
2015
Series G
San Francisco
Startup accelerator and venture capital fund focused on early-stage companies
-
2005
Unfunded
Mountain View
Developer of humanoid robots
-
2012
Unfunded
Redwood City
View all Founded Companies by Trevor Blackwell

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