Sean Riordan, Managing Partner at Lion's Head Capital is an active investor based in Chicago, United States. This profile covers what Sean Riordan backs, at which stage, and how founders can reach out in 2026.
Sean Riordan invests in SaaS & Enterprise, Fintech and Artificial Intelligence, typically at Seed and Series A.
- Location
- Chicago, United States
- Typical check
- $625K
What does Sean Riordan invest in?
- Investor type
- VC
Where is Sean Riordan based?
Sean Riordan is based in Chicago, United States.
- Browse more startup investors near Sean Riordan:
- Startup investors in ChicagoStartup investors in the United States
How to reach Sean Riordan
Angels and operators like Sean Riordan reply to specific, personalized notes that show real traction, not mass blasts. Build a verified list, write a note that fits their thesis, and track replies, all on Round Funded.
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About this profile
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Cite this page
Round Funded. "Sean Riordan." Round Funded investor database, updated September 22, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/sean-riordan
Frequently Asked Questions
Who is Sean Riordan?
Sean Riordan, Managing Partner at Lion's Head Capital is an active investor based in Chicago, United States. Sean Riordan invests in SaaS & Enterprise, Fintech and Artificial Intelligence, typically at Seed and Series A.
What does Sean Riordan invest in?
Sean Riordan invests in SaaS & Enterprise, Fintech and Artificial Intelligence, typically at Seed and Series A. Match your sector and stage, then reach out with a personalized pitch.
What stage does Sean Riordan invest at?
Sean Riordan typically invests at Seed and Series A. Lead with traction that fits the stage when you reach out.
What is Sean Riordan's typical check size?
Sean Riordan typically writes checks around $625K. Use it as a signal for whether your raise fits their stage.
Where is Sean Riordan based?
Sean Riordan is based in Chicago, 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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