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Stephen Marcus

General Partner at Riot Ventures

Los Angeles County, California

Overview 

Stephen Marcus is the Co-Founder & General Partner at Riot Ventures, with a strong background in venture capital and start-ups. He has successfully invested in various companies and serves on the boards of Kindo and Shield AI, showcasing his expertise in deep tech sectors like robotics, IoT, and AI.

Work Experience 

  • Co-Founder & General Partner

    2017 - Current

    We are a top tier seed fund 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

    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.

  • Investor

    2019

    We are proud to have made our first growth investment in Desktop Metal's Series E alongside Koch, NEA, Lux, Kleiner Perkins, and Google Ventures. #3dprinting, #deeptech, #manufacturing, #bostontech

Desktop Metal is a provider of metal and carbon fiber 3D printing accessible to all engineers, designers, and manufacturers.

Raised $816,760,835.00 from Baron Capital, XN, Chamath Palihapitiya, JB Straubel, Miller Value Partners and HPS Investment Partners.

  • 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.

  • Angel Investor

    2014

Stripe is an API technology company that provides online payment processing and commerce solutions for Internet businesses.

Raised $9,440,247,725.00 from E1 Ventures.

  • Founder & CEO

    2011 - 2015

    Matchbox is an award winning enterprise software company building cutting edge enrollment and registration tools for educational institutions. Matchbox was acquired by Noodle.

Matchbox develops tools for universities to carry out inbound application processes.

Raised $2,500,000.00 from Floodgate.

  • Member of Admissions Committee

    2009 - 2011

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