Who founded Polymorph?

Polymorph was founded by Andrew Sy in 2026.

Who are Polymorph's investors?

Polymorph's investors include Y Combinator, Amino Capital, Andreessen Horowitz, Dorm Room, Founders Factory, General Advance, Techstars, Wefunder.

Where is Polymorph headquartered?

Polymorph is headquartered in San Francisco, US.

Polymorph

YC W26

San Francisco, US · Founded 2026 · 4 employees · 8 known investors

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Polymorph operates a continuous experimentation platform that enables product teams to run thousands of experiments simultaneously across consumer applications. The service helps companies optimize user experiences at scale without increasing headcount, targeting product managers and designers building consumer internet products.

Enterprise Software Marketing Tech SaaSUnited States of AmericaAmerica / Canada

Founders & leadership· Y Combinator alumni (W26)

Polymorph was founded in 2026 by Andrew Sy.

Andrew Sy Co-founder, CEOAndrew Sy previously worked at Meta and on machine learning infrastructure at Scale AI, which handled over 10 million calls daily. He is now building Polymorph.

Investors · 8

Y Combinator✓ confirmed by PolymorphSan Francisco · $500K

How we know: the Y Combinator directory · open dataset · 5k.vc investor directory · Not right? Tell us