John Sullivan is a Senior Managing Director at Relational Investors, whose known portfolio counts 2 companies.
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Investment focus
- Stage
- Late-StageSeries A
Contacts
Affiliated funds' portfolios
Senior Managing Director at Relational Investors, whose known portfolio counts 2 companies
- Clean Harbors
- Guaranty Bank and Trust Company
Investor Profile
Stage-wise, the deals at Relational Investors cluster around Late-Stage and Series A rounds.
The firm portfolio and the focus above give founders context on whether John Sullivan matches their raise.
Colleagues at Relational Investors
Frequently asked questions
Who is John Sullivan?
John Sullivan is a venture debt investor based in San Diego, California, United States, listed as Senior Managing Director at Relational Investors. The known portfolio of that firm counts 2 companies. That portfolio belongs to the firm, not to John Sullivan personally.
What stage does John Sullivan invest at?
Relational Investors appears in Late-Stage and Series A rounds across its known deals, and John Sullivan is listed there as Senior Managing Director. 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 John Sullivan listed at?
John Sullivan is listed as Senior Managing Director at Relational Investors. 2 other people in the database share a firm with John Sullivan.
How do I contact John Sullivan?
A LinkedIn page is on file for John Sullivan. It is readable inside RaiseHunt after you create an account. The database holds no email address and 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