Stephen Marcus
General Partner at Riot Ventures
Los Angeles County, California
Overview
Work Experience
Co-Founder & General Partner
2015 - Current
We are a top tier multi-stage firm dedicated to deep technology. Backing audacious founders working on transforming the world around us with cutting edge technology. #hardtech, #deeptech, #venturecapital, #VC, #hardware, #frontiertech, #AI, #biotech, #3dprinting, #AI, #robotics
Riot Ventures invests in deep technology with a focus on intelligence, sensing and control, communications, mobility and security.
Board Member
2025
Board Member
2024
Board Member
2023
Board Member
2022
Board Member
2022
Enhance AI productivity with Kindo. The first platform that supports any AI model while being centralized, compliant, and secure.
Raised $27,600,000.00 from Marlinspike Capital, Riot Ventures, Sunset Ventures, Drive Capital, New Era Ventures, Eniac Ventures and RRE Ventures.
Board Member
2019
We made our latest growth investment in Shield.AI, an artificial intelligence platform that enables robots to see, reason about, and search the world. #drones, #defense, #AI, #artificialintelligence, #hardware
Shield AI is an artificial intelligence company that aims to protect service members and civilians with intelligent systems.
Raised $1,073,144,999.00 from Cacti.
Investor
2019
Excited to announce our second growth investment at Riot into the Toast Series E alongside Tiger Global, TCV, Bessemer, Lead Edge and T. Rowe #restaurants, #technology, #fintech
Toast is a point-of-sale and restaurant management platform designed for businesses in the food service and hospitality industry.
Raised $961,950,000.00 from 12 West Capital.
Catalyst
2016
Angel Investor
2010
Okta is a management platform that secures critical resources from cloud to ground for workforce and customers.
Raised $1,229,250,000.00 from Junipero Capital and Employee Stock Option Fund.