United States · 
Who invested in Cosine?
Cosine's investors include Y Combinator, Gaingels, Soma Capital, Lakestar and UpHonest Capital.
United States · Venture startup
Who invested in Cosine
Funding summaryUpdated 26 Oct 2026
$534Kraised across 1 round since 2026, from 1 source
- Latest round
- Venture, $534KJan 2026
- Investors
- 5
The rounds
- Jan 2026
Everyone who backed them
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Quick answers about Cosine
How much has Cosine raised?
Cosine has raised $534K across 1 round since 2026.
When did Cosine last raise?
Cosine's most recent round was a Venture of $534K in Jan 2026.
What was Cosine's biggest round?
Its most recent round, $534K in Jan 2026, is also its largest on record.
Who backed Cosine first?
Cosine's first round on record, in Jan 2026, was backed by Y Combinator, Gaingels and Soma Capital and 2 others.
What stage is Cosine at?
Cosine's latest named round is a Venture, in Jan 2026.
Where is Cosine based?
Cosine is based in the United States.
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