Cliff Sirlin is an angel investor who focuses on pre-seed and seed-stage companies. See sector focus and contact routes.
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. His notable portfolio includes unicorn companies Seamless and inVision, as well as Pond5, Living Social, Greatist, and Alloy. 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.
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