An angel investor based in Westport, Connecticut, United States, Cliff Sirlin has 8 known investments: Greatist, BuyYourFriendADrink.com, Domino, Pond5, Pure Cycles, InVision, Litographs and Seamless.
Is Cliff Sirlin a fit for your startup?
Paste your website. AI checks the fit and scores every other investor too.
Investment focus
- Stage
- Seed
Contacts
Cliff Sirlin portfolio companies (8)
- Greatist
- BuyYourFriendADrink.com
- Domino
- Pond5
- Pure Cycles
- InVision
- Litographs
- Seamless
Affiliated funds' portfolios
Venture Partner at LaunchCapital, whose known portfolio counts 8 companies
- Jeeva AI
- 6K
- CYVL
- Nubis Communications
- Logiwa
- Qeepsake
- Borazon
- Luxury Travel Hackers
Investor Profile
Founders in the listed sectors Consumer, Hardware and Healthcare, and focus areas Digital Media, Media, Social Media and Wearables will recognize the pattern in this portfolio.
Stage-wise, the known deals cluster around Seed rounds.
The portfolio and focus above give founders context on whether Cliff Sirlin matches their raise.
Colleagues at LaunchCapital
Similar investors
Showing 20 of 100
Jeff Siegel
angel investor
Huntsville, United States
Andrew Anker
angel investor and operator angel
San Francisco, United States
Mark Silverman
Managing Director
Capitola, United States
Mark Silva
angel investor
San Francisco, United States
Sam Selinger
angel investor
New York, United States
Jon Wiesman
angel investor
Aliso Viejo, United States
Crystal Ciancutti
angel investor
Portola Valley, United States
Craig Clemens
angel investor and operator angel
Los Angeles, United States
Dhani Jones
Operator Advisor
Detroit, United States
Jeff Stibel
CEO, LegalZoom
Malibu, United States
Michael Dearing
angel investor and operator angel
Southampton Parish, Bermuda
Darius Lahoutifard
angel investor and operator angel
Newport Beach, United States
Sean Trigony
Managing Partner and Founder
Hermosa Beach, United States
Ron Selvey
angel investor
San Luis Obispo, United States
Phil Shevrin
angel investor
Lexington, United States
Howard Lindzon
Chairman
Coronado, United States
Andrew Ferenci
angel investor and operator angel
Park City, United States
Chris Fralic
Board Partner
Philadelphia, United States
Mark Gerson
Co-Founder
New York, United States
Andrew Marciniec
angel investor
Malta
Frequently asked questions
Who is Cliff Sirlin?
Cliff Sirlin is an angel investor based in Westport, Connecticut, United States with 8 known investments on file, among them Greatist, BuyYourFriendADrink.com and Domino. The sections above list the sectors, stages and firms attached to that record.
What does Cliff Sirlin invest in?
Listed sectors include Consumer, Hardware and Healthcare; listed focus areas include Digital Media, Media, Social Media and Wearables. Those tags come from the companies attached to this profile, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Cliff Sirlin invest at?
The known deals of Cliff Sirlin include Seed rounds. 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 Cliff Sirlin listed at?
Cliff Sirlin is listed as Venture Partner at LaunchCapital. One other person in the database shares a firm with Cliff Sirlin.
How do I contact Cliff Sirlin?
An email address and a LinkedIn page are on file for Cliff Sirlin. The address stays masked on this page and is readable inside RaiseHunt after you create an account. The database holds no phone number for this profile.
Skip the browsing. Let AI find your ideal investors in one minute.
Paste your startup website and AI picks your best-fit investors out of 135,000+ profiles.
Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal