Stephen Marcus
InvestorGeneral Partner at Riot Ventures
Los Angeles, California
Writes $3M checks · typically $1.5M
About
Stephen Marcus, a six-time founder/CEO with 20+ years building large-scale wireless networks and datacenters, brings deep infrastructure and hardware expertise and a record of frontier bets that produced IPOs.
Invests in
AI & Machine LearningCybersecurityDeep TechDefense TechHardwareLogistics & Supply ChainRoboticsSpace Tech
Experience
- Riot VenturesCo-Founder & General Partnercurrent2015 — presentLos Angeles Metropolitan Area
- EnduroSatBoard Membercurrent2025 — present
- Blue Water AutonomyBoard Membercurrent2025 — present
- Nodal NetworksBoard Membercurrent2024 — present
- Valar AtomicsBoard Membercurrent2023 — presentLos Angeles, California, United States
- Mango IncBoard Membercurrent2022 — present
- KindoBoard Membercurrent2022 — presentLos Angeles, California, United States
- Shield AIBoard Membercurrent2019 — presentSan Diego County, California, United States
- Toast, Inc.Investorcurrent2019 — presentGreater Boston
- MIT Deshpande CenterCatalystcurrent2016 — presentCambridge, MA
- Okta, Inc.Angel Investorcurrent2010 — present
- StripeAngel Investorcurrent2014 — present
- Matchbox, Inc.Founder & CEO2011 — 2015Greater Boston
- MIT Sloan School of ManagementMember of Admissions Committee2009 — 2011
- Invincea, Inc.Board Observer2008 — 2011
- New Atlantic VenturesVenture Partner2008 — 2011
- Marcus CompaniesCEO2001 — 2010
- SprintMergers and Acquisitions Consultant2000 — 2007
Education
- MIT Sloan School of ManagementMBA, Entrepreneurship & Venture Capital2006 — 2008
- Worcester Polytechnic InstituteBS1998 — 2002
Skills & more
Strategy9Management4Leadership3Enterprise Software11SaaS2Venture Capital45Start-ups99Mergers10Wireless5Mobile Devices26Entrepreneurship59Cloud Computing7
+12 more
E-commerceMobile ApplicationsMergers & AcquisitionsTelecommunicationsProduct ManagementProduct MarketingProgram ManagementStrategic PartnershipsCompetitive AnalysisAngel InvestingNetworkingAnalyticsLanguages English · Spanish
From Stephen's professional profile.
Same school
Also attended MIT Sloan School of Management410
Doug LeonePartner at Sequoia Capital; former Global Managing PartnerHemant TanejaCEO & Managing Director of General CatalystBrad FeldCo-founder of Foundry and TechstarsChris MorrisProcess Specialist, Exit Readiness at Mayfair Equity PartnersBirgitteInvestor at InvestinorOlaInvestor at Investinor
+ 404 more
Also attended Worcester Polytechnic Institute24
Steve VassalloInvestor at Foundation CapitalJiong MaInvestor at Phoenix Venture PartnersJill GoldsteinPrincipal at Vida VenturesKun PengGP at Blockchain BuildersBob MasonCo-Founder & Managing Partner at Argon VenturesEmily YuSenior Associate at Boost VC
+ 18 more
Shared employers
Also worked at Blue Water Autonomy2
Also worked at Valar Atomics6
Also worked at Stripe88
Hemant TanejaCEO & Managing Director of General CatalystMatt HuangCo-founder and Managing Partner at ParadigmLuciana LixandruPartner at Sequoia CapitalLaura BuhlerPartner, Head of Community at Felicis VenturesJanet WolpertInvestor at Index VenturesMark FiorentinoInvestor at Index Ventures
+ 82 more
Also worked at MIT Sloan School of Management80
Isabelle StyslingerSenior Associate, Rise of the Rest at RevolutionNoubar AfeyanInvestor at Flagship PioneeringIsabelle TashimaSr. Associate at Volition CapitalAkanksha MehtaInvestor at TRANSFORMATION CAPITALGautam GuptaCo-Founder & Venture Partner at BA CapitalAgustina Soriano SergiSenior Associate — Ventures at Energize Ventures
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+ 74 more
Investments
Board seats
Blue Water AutonomyEndurosatKindoMangoShield AIValar Atomics
Per the firm's website.
