Cliff Sirlin is an angel investor who focuses on pre-seed and seed-stage companies. See sector focus and contact routes.
About Cliff Sirlin
Cliff Sirlin is an angel investor who focuses on **pre-seed and seed-stage** companies, primarily in **technology sectors** such as consumer software, health care, and information technology, with a distinctive thesis of **creating marketplaces and disrupting inefficient supply chains**[1][8][9]. His notable portfolio includes **unicorn companies Seamless and inVision**, as well as **Pond5, Living Social, Greatist, and Alloy**[1][2][5]. While specific check sizes vary, one source indicates his investments typically involve a **$4 million check**, such as in Flyby Robotics, though he has also backed early-stage ventures with smaller amounts[8].
Cliff Sirlin at a glance
Role
Angel Investor
Location
New York, NY, United States
Investor type
Individual/Angel
Focus areas
Mr. Cliff Sirlin serves as Angel Investor at Cliff Sirlin. Cliff recently joined LaunchCapital as the Managing Director. Cliff is a career entrepreneur and early stage investor who has founded, invested in and operated a portfolio of high growth businesses. Immediately prior to his role with LaunchCapital, Cliff was the CEO of the Domino Media Group. Cliff's career has been focused on creating marketplaces and disrupting inefficient supply chains. The companies he has co-founded and invested in have spanned a broad diversity of industries, including technology, energy, food services, e-commerce, media and real estate. Some of his recent investments have included InVision
Frequently asked about Cliff Sirlin
What does Cliff Sirlin invest in?
Cliff Sirlin (New York, NY, United States) — sector focus: Mr. Cliff Sirlin serves as Angel Investor at Cliff Sirlin. Cliff recently joined LaunchCapital as the Managing Director. Cliff is a career entrepreneur and ear….
How do I contact Cliff Sirlin?
Cliff Sirlin's published profile links (website, LinkedIn or X where available) are listed on the StartupFundraising.com investor profile.
Where is Cliff Sirlin headquartered?
Cliff Sirlin is based in New York, NY, United States.
Every field above is read from the StartupFundraising firm directory — disclosed location, recorded investments and stated focus — and re-checked as filings arrive. Founders pair it with investors in New York when building a target list.
