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Nate Williams
Founder and Managing Partner, UNION
Company

Based in
San Francisco, CA
Invests
Pre-Seed or Seed
Type
Investor
Nate Williams is founder and managing partner of UNION (formerly Union Labs), a San Francisco based deep tech seed fund he co-founded in 2018. He invests in AI, robotics, IoT, and autonomous systems, with a growing focus on physical AI, construction, and industrial automation. Before venture, he was chief revenue officer at August Home, acquired by Assa Abloy in 2017, and an entrepreneur in residence at Kleiner Perkins. His portfolio includes Raise Robotics and Urban Sky.
Relevant Investments
Raise Robotics
Builds an autonomous mobile robotic work cell for precision fabrication, construction, and shipbuilding tasks.
Seed 2025
www.raiserobotics.ai
Urban Sky
Develops stratospheric microballoons for high resolution earth imaging, defense surveillance, and environmental monitoring.
Series B 2025
www.urbansky.com
Cosmic Robotics
Builds autonomous heavy lift robots that place solar panels and support data center and lunar construction.
Seed 2026
www.cosmicrobotics.com
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become a sponsor
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DIRTY JOBS SUMMIT 2026
[ DIRTY JOBS Starts in: ]
23:22:41:13
[ section ]
become a sponsor
All rights reserved
DIRTY JOBS SUMMIT 2026