An angel investor based in Jackson, Wyoming, United States, Mark Siegel has 13 known investments, including GridRival, Wristcam, Zuli, Pliant Technology, Superplum, 3PAR, tCell, 3T Biosciences, Owlcam, Peopleclick Authoria, Renovo Auto and SpeedDate.
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Investment focus
- Sector
- AIFinTechHealthcareSaaS
Contacts
Mark Siegel portfolio companies (13)
- GridRival
- Wristcam
- Zuli
- Pliant Technology
- Superplum
- 3PAR
- tCell
- 3T Biosciences
- Owlcam
- Peopleclick Authoria
- Renovo Auto
- SpeedDate
- eXelate
Affiliated funds' portfolios
Managing Director at Menlo Ventures, whose known portfolio counts 10 companies
- True Anomaly
- Axiom
- Legora
- Gimlet Labs
- Standard Kernel
- Grow Therapy
- Elorian
- Manifest OS
- Arc Boats
- BrainGrid
Investor Profile
Founders in the listed sectors AI, FinTech, Healthcare and SaaS, and focus areas Cloud Infrastructure, Data Analytics, Digital Health and Drug Discovery will recognize the pattern in this portfolio.
Stage-wise, the known deals cluster around Seed, Series A and Series B rounds.
The portfolio and focus above give founders context on whether Mark Siegel matches their raise.
Colleagues at Menlo Ventures
Showing 20 of 26
Naomi Pilosof Ionita
Venture Partner
San Francisco, United States
John Jarve
Partner Emeritus
Menlo Park, United States
Olexandr Prokhorenko
Entrepreneur in Residence
San Francisco, United States
Matt Kraning
Partner
San Francisco, United States
Shawn Carolan
Partner
Palo Alto, United States
Mark Siegel
Managing Director
Jackson, United States
Greg Rudin
Board Partner
San Francisco, United States
Houman Haghighi
Partner
San Diego, United States
Jason Yau
CxO Advisory Board
Kawaihae, United States
Michelle Aguinis
Principal, Inception Fund
Miami, United States
Tyler Sosin
Venture Partner
New York, United States
Steve Sloane
Partner
Menlo Park, United States
Jean-Paul Sanday
Partner
Menlo Park, United States
Stephanie Hampton
Investor
United States
Matt Murphy
Partner
San Francisco, United States
Doug Carlisle
Managing Director
Portola Valley, United States
Jordan Ormont
Partner
United States
Deedy Das
Principal
Palo Alto, United States
Croom Beatty
Partner
San Francisco, United States
Venky G.
Partner
Menlo Park, United States
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Frequently asked questions
Who is Mark Siegel?
Mark Siegel is an angel investor based in Jackson, Wyoming, United States with 13 known investments on file, among them GridRival, Wristcam and Zuli. The sections above list the sectors, stages and firms attached to that record.
What does Mark Siegel invest in?
Listed sectors include AI, FinTech, Healthcare and SaaS; listed focus areas include Cloud Infrastructure, Data Analytics, Digital Health and Drug Discovery. 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 Mark Siegel invest at?
The known deals of Mark Siegel include Seed, Series A and Series B 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 Mark Siegel listed at?
Mark Siegel is listed as Managing Director at Menlo Ventures. 26 other people in the database share a firm with Mark Siegel.
How do I contact Mark Siegel?
A phone number and a LinkedIn page are on file for Mark Siegel. They are readable inside RaiseHunt after you create an account. The database holds no email address 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