Colin Sullivan is an Investor at Related Companies, whose known portfolio counts 7 companies.
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Investment focus
Contacts
Affiliated funds' portfolios
Investor at Related Companies, whose known portfolio counts 7 companies
- Esusu
- HqO
- Applied Digital
- Revere CRE
- Eleven On The River
- Harborside 4 Joint Venture
- Middle Street Partners
Investor Profile
The listing covers sectors FinTech, Hardware, Real Estate and SaaS, and focus areas Cloud Infrastructure, Credit, Enterprise SaaS and Payments. Startups operating in these areas may find Colin Sullivan relevant.
Related Companies appears in Growth, Late-Stage and Seed rounds across its known deals.
What the affiliated firm has backed is the closest available signal on whether Colin Sullivan is worth approaching.
Colleagues at Related Companies
Andrew Wald
Data Center Development
New York, United States
Ben Sarly
Investor
New York, United States
Bruce Beal
Investor
New York, United States
Carl Hernas
Investor
New York City, United States
Ian Stokes
Investor
New York, United States
Jeff Brodsky
Vice Chairman
East Meadow, United States
Frequently asked questions
Who is Colin Sullivan?
Colin Sullivan is a corporate venture investor and venture debt investor based in New York, United States, listed as Investor at Related Companies. The known portfolio of that firm counts 7 companies. That portfolio belongs to the firm, not to Colin Sullivan personally.
What does Colin Sullivan invest in?
Listed sectors include FinTech, Hardware, Real Estate and SaaS; listed focus areas include Cloud Infrastructure, Credit, Enterprise SaaS and Payments. 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 Colin Sullivan invest at?
Related Companies appears in Growth, Late-Stage and Seed rounds across its known deals, and Colin Sullivan is listed there as Investor. 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 Colin Sullivan listed at?
Colin Sullivan is listed as Investor at Related Companies. 6 other people in the database share a firm with Colin Sullivan.
How do I contact Colin Sullivan?
An email address, a phone number and a LinkedIn page are on file for Colin Sullivan. 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