Cliff Sirlin
Micro VC investor in Westport
Westport, Connecticut
Cliff Sirlin, Micro VC investor in Westport is an active investor based in Westport, Connecticut. This profile covers what Cliff Sirlin backs, at which stage, and how founders can reach out in 2026.
- Investor type
- Micro VC
- Stages
- SeedSeries A
- Invests in
- SaaS & EnterpriseDigital Health & HealthTechHardware & Deep TechRobotics & AutomationGaming & EntertainmentAR/VR & MetaverseMedTech & Medical Devices
- Location
- Westport, Connecticut
- Typical check
- $625K
- Past investments
- 91
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TokaHow to reach Cliff Sirlin
Angels and operators like Cliff Sirlin 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. "Cliff Sirlin." Round Funded investor database, updated September 9, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/cliff-sirlin-westport
Frequently Asked Questions
What does Cliff Sirlin invest in?
Cliff Sirlin invests in SaaS & Enterprise, Digital Health & HealthTech, Hardware & Deep Tech and Robotics & Automation, typically at Seed and Series A. Match your sector and stage, then reach out with a personalized pitch.
What stage does Cliff Sirlin invest at?
Cliff Sirlin typically invests at Seed and Series A. Lead with traction that fits the stage when you reach out.
What is Cliff Sirlin's typical check size?
Cliff Sirlin typically writes checks around $625K. Use it as a signal for whether your raise fits their stage.
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.