Rick Sullivan
Managing Partner at Gainline Capital Partners
Stamford, United States
Rick Sullivan, Managing Partner at Gainline Capital Partners is an active investor based in Stamford, United States. This profile covers what Rick Sullivan backs, at which stage, and how founders can reach out in 2026.
Rick Sullivan invests in SaaS & Enterprise, typically at Seed and Series A.
- Location
- Stamford, United States
- Typical check
- $625K
What does Rick Sullivan invest in?
- Investor type
- VC
- Invests in
- SaaS & Enterprise
Where is Rick Sullivan based?
Rick Sullivan is based in Stamford, United States.
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- Startup investors in the United States
How to reach Rick Sullivan
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About this profile
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Cite this page
Round Funded. "Rick Sullivan." Round Funded investor database, updated September 22, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/rick-sullivan-stamford
Frequently Asked Questions
Who is Rick Sullivan?
Rick Sullivan, Managing Partner at Gainline Capital Partners is an active investor based in Stamford, United States. Rick Sullivan invests in SaaS & Enterprise, typically at Seed and Series A.
What does Rick Sullivan invest in?
Rick Sullivan invests in SaaS & Enterprise, typically at Seed and Series A. Match your sector and stage, then reach out with a personalized pitch.
What stage does Rick Sullivan invest at?
Rick Sullivan typically invests at Seed and Series A. Lead with traction that fits the stage when you reach out.
What is Rick Sullivan's typical check size?
Rick Sullivan typically writes checks around $625K. Use it as a signal for whether your raise fits their stage.
Where is Rick Sullivan based?
Rick Sullivan is based in Stamford, United States.
How do founders reach investors like this?
Round Funded lists active investors with verified, professional contact details for signed-up founders. Filter by sector, stage and location, then send a personalized pitch from your own inbox.
What is Round Funded?
Round Funded is an investor database and outreach platform for startup founders. It lists 60,000+ active investors with verified contacts, filtered to recent investment activity, and lets founders send personalized pitches from their own Gmail, track replies, and share a free Data Room. Round+ starts at $99 per month with a 3-day trial.
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