Mark Sullivan is a Partner at Lineage Capital, whose known portfolio counts 5 companies.
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Investment focus
Contacts
Affiliated funds' portfolios
Partner at Lineage Capital, whose known portfolio counts 5 companies
- Loop
- Mainspring Energy
- Outrider
- Kargo
- Parsyl
Investor Profile
Founders in the listed sectors AI, Climate, Commerce and Hardware, and focus areas Autonomous Vehicles, Clean Energy, Cold-Chain Logistics and Data Analytics fall inside that listing.
Stage-wise, the deals at Lineage Capital cluster around Growth, Seed and Series A rounds.
What the affiliated firm has backed is the closest available signal on whether Mark Sullivan is worth approaching.
Colleagues at Lineage Capital
Jesse Hertzberg
President
New York, United States
Adam Forste
Co-Founder and Co-Executive Chairman
Wilson, United States
Nick Schmiemann
Investment Professional
Boston, United States
David Westhaver
Vice President
Boston, United States
Greg Lehmkuhl
Chief Executive Officer
Novi, United States
Brian Sykora
Partner
Boston, United States
Brook Parker
Partner
Boston, United States
Cameron Goff
Vice President
Boston, United States
Ed Lam
Investor
Austin, United States
Erik Dykema
Partner
Boston, United States
Bill M.
Partner
Boston, United States
Frequently asked questions
Who is Mark Sullivan?
Mark Sullivan is a corporate venture investor and private equity investor based in Boston, Massachusetts, United States, listed as Partner at Lineage Capital. The known portfolio of that firm counts 5 companies. That portfolio belongs to the firm, not to Mark Sullivan personally.
What does Mark Sullivan invest in?
Listed sectors include AI, Climate, Commerce and Hardware; listed focus areas include Autonomous Vehicles, Clean Energy, Cold-Chain Logistics and Data Analytics. 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 Mark Sullivan invest at?
Lineage Capital appears in Growth, Seed and Series A rounds across its known deals, and Mark Sullivan is listed there as 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 Mark Sullivan listed at?
Mark Sullivan is listed as Partner at Lineage Capital. 11 other people in the database share a firm with Mark Sullivan.
How do I contact Mark Sullivan?
An email address, a phone number and a LinkedIn page are on file for Mark 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