Investor profile
Stephen Marcus
Angel, Operator angel & Co-Founder & General Partner at Riot Ventures, Angel Investor at Stripe
Stephen Marcus is an angel investor and operator angel based in Los Angeles, California, United States. The known portfolio counts 4 companies: Okta, Invincea, Trefis and Nodal Networks.
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Investment focus
- Stage
- Seed
Contacts
Stephen Marcus portfolio companies (4)
- Okta
- Invincea
- Trefis
- Nodal Networks
Affiliated funds' portfolios
Co-Founder & General Partner at Riot Ventures, whose known portfolio counts 14 companies
- True Anomaly
- Valar Atomics
- Shield AI
- Sift
- Integrate
- Kindo
- EnduroSat
- Karman Industries
- OpenEnvoy
- Oxide Computer Company
- Deterrence
- Blue Water Autonomy
- and 2 more
Angel Investor at Stripe, whose known portfolio counts 17 companies
- Ramp
- TrueLayer
- Stedi
- Kite
- Remark
- Clerk
- Circuit & Chisel
- Rowspace
- Badge
- CoPlane
- Vengo AI
- InCorp Chain
- and 5 more
Investor Profile
The known portfolio sits in sectors AI, Consumer, Hardware and SaaS, and focus areas Data Analytics, Enterprise SaaS, Generative AI and IoT.
Stage-wise, the known deals cluster around Seed rounds.
Reviewing the investment history helps decide whether there is a realistic fit before reaching out.
Colleagues
Showing 20 of 38
John Collison
President
San Francisco, United States
Aadil Mamujee
Stablecoins
New York, United States
Lucas Dickey
Day Zero Things
Seattle, United States
Parker Conrad
Member Board of Directors
San Francisco, United States
Steve S.
Angel Investor
Redmond, United States
Francisco Tolmasky
CEO
San Francisco, United States
William Gaybrick
President, Technology and Business
San Francisco, United States
Anne Hoffer
Loves to learn
Chicago, United States
Jay Shah
Business Lead, Link
New York, United States
Andrew Garvin
Investor
Oakland, United States
Patrick McKenzie
Works for the Internet
Chicago, United States
Matt Huang
Board Member
San Francisco, United States
Bickey Russell
Head of APAC, Global Alliances and Channels
Singapore
Shaun Sharkey
Enterprise
London, United Kingdom
Midhat Meraj
Global Partnerships
Paris, France
Hemant Taneja
Investor (former Board Member)
Palo Alto, United States
Allison Xu
Agentic Commerce
New York, United States
Laura Buhler
Investor
San Francisco, United States
Matt Klineman
Corporate Development
New York, United States
Sarah Grace
Global Head of Corporate Governance
Ireland
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Frequently asked questions
Who is Stephen Marcus?
Stephen Marcus is an angel investor and operator angel based in Los Angeles, California, United States with 4 known investments on file, among them Okta, Invincea and Trefis. The sections above list the sectors, stages and firms attached to that record.
What does Stephen Marcus invest in?
Listed sectors include AI, Consumer, Hardware and SaaS; listed focus areas include Data Analytics, Enterprise SaaS, Generative AI and IoT. Those tags come from the companies attached to this profile, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Stephen Marcus invest at?
The known deals of Stephen Marcus include Seed rounds. Stage is the strongest single filter when you build a target list: an investor with no record at your stage rarely starts with you.
Which firm is Stephen Marcus listed at?
Stephen Marcus is listed as Angel Investor at Stripe. 38 other people in the database share a firm with Stephen Marcus.
How do I contact Stephen Marcus?
An email address and a LinkedIn page are on file for Stephen Marcus. The address stays masked on this page and is readable inside RaiseHunt after you create an account. The database holds no phone number for this profile.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal