Riot Ventures ↗︎
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Riot Ventures is a venture capital firm whose portfolio spans companies working on defense AI, space and satellite systems, nuclear and geothermal energy, robotics, logistics, and enterprise software. The page lists portfolio company one-liners rather than describing an operating company.
Founders & leadership
WC

SM

Stephen MarcusFounderStephen Marcus is Co-Founder and Managing General Partner at Riot Ventures, a multi-stage venture capital firm based in Los Angeles. Prior to Riot, he founded six hardware and software companies focused on wireless carrier infrastructure, and holds a BS from Worcester Polytechnic Institute and an MBA from MIT Sloan School of Management.
Investors · 2
Frequently asked questions
- What does Riot Ventures ↗︎ do?
- Riot Ventures is a venture capital firm whose portfolio spans companies working on defense AI, space and satellite systems, nuclear and geothermal energy, robotics, logistics, and enterprise software. The page lists portfolio company one-liners rather than describing an operating company.
- Who founded Riot Ventures ↗︎?
- Riot Ventures ↗︎ was founded by Will Coffield, Stephen Marcus.
- Who are Riot Ventures ↗︎'s investors?
- Riot Ventures ↗︎'s investors include Atas VC, Level Ventures.


