Investor profile
Ian Sigalow
Fund of funds, Venture capital & Co-Founder and Managing Partner at Greycroft, Board Member at Stable
Ian Sigalow is a Co-Founder and Managing Partner at Greycroft, whose known portfolio counts 13 companies.
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Investment focus
Contacts
Affiliated funds' portfolios
Co-Founder and Managing Partner at Greycroft, whose known portfolio counts 13 companies
- Advanced Machine Intelligence
- Axiom
- Public
- Harbinger
- OpenEvidence
- Unconventional AI
- Biologica
- Dazzle AI
- Sequen
- Big Shot Pictures
- UMA
- Procurated
- and 1 more
Board Member at Stable, whose known portfolio counts 10 companies
- Ananym Capital Management
- Ghost Tree Partners
- HarbourView Equity Partners
- Isabella Capital Management
- Laburnum Capital
- North Ground Capital
- Phoenix Merchant Partners
- SaddleRock Capital
- The Quarry
- Tribune Investment Group
Investor Profile
Founders in the listed sectors AI, Commerce, Consumer and FinTech, and focus areas AI Agents, AI Infrastructure, Analytics and Asset Management fall inside that listing.
Greycroft appears in Growth, Seed and Series A rounds across its known deals.
What the affiliated firm has backed is the closest available signal on whether Ian Sigalow is worth approaching.
Colleagues
Alan Patricof
Chairman Emeritus
New York, United States
Brentt Baltimore
Principal
Los Angeles, United States
Mark Terbeek
Partner
Los Angeles, United States
Peter Saperstone
Partner
Boston, United States
Dylan Pearce
General Partner
Los Angeles, United States
Chiraag Deora
Principal
San Francisco, United States
Elaine Russell
Investor, Founder And Product Enthusiast
Los Angeles, United States
Massimo Pennisi
Principal
Los Angeles, United States
Carley Phillips
Principal
San Francisco, United States
John Elton
Partner
New York City, United States
Dana Settle
Co-Founder and Managing Partner
Los Angeles, United States
Alison Lange Engel
Partner
United States
Kishen Patel
Investor
San Francisco, United States
Stewart Easterby
Operating Partner
Los Angeles, United States
Bryan Subijano
Principal
United States
Chris Winiarz
Chief Investment Officer
Miami, United States
Brian B. Nicholson
Partner
Los Angeles, United States
Addie Ewald
Investor
San Francisco, United States
Frequently asked questions
Who is Ian Sigalow?
Ian Sigalow is a fund of funds investor and venture capital investor based in New York, United States, listed as Co-Founder and Managing Partner at Greycroft. The known portfolio of that firm counts 13 companies. That portfolio belongs to the firm, not to Ian Sigalow personally.
What does Ian Sigalow invest in?
Listed sectors include AI, Commerce, Consumer and FinTech; listed focus areas include AI Agents, AI Infrastructure, Analytics and Asset Management. Those tags come from the portfolios of the firms this profile is attached to, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Ian Sigalow invest at?
Greycroft appears in Growth, Seed and Series A rounds across its known deals, and Ian Sigalow is listed there as Co-Founder and Managing Partner. 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 Ian Sigalow listed at?
Ian Sigalow is listed as Co-Founder and Managing Partner at Greycroft. 18 other people in the database share a firm with Ian Sigalow.
How do I contact Ian Sigalow?
An email address, a phone number and a LinkedIn page are on file for Ian Sigalow. The address stays masked on this page and is readable inside RaiseHunt after you create an account.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal