United States · 
Who invested in Abacum?
Abacum's investors include Y Combinator, FJ Labs, K Fund, Creandum and Atomico, and 2 more on record.
United States · Series B startup
Who invested in Abacum
Funding summaryUpdated 26 Oct 2026
$60Mraised across 1 round since 2025, from 1 source
- Latest round
- Series B, $60MJun 2025
- Investors
- 7
The rounds
- Jun 2025Series B$60M
Source recordedSEC filing: $43M sold, first sale May 2025
Everyone who backed them
Cathay InnovationVC firm1round
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
These 3 firms list Abacum as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.
Quick answers about Abacum
How much has Abacum raised?
Abacum has raised $60M across 1 round since 2025.
When did Abacum last raise?
Abacum's most recent round was a Series B of $60M in Jun 2025.
What was Abacum's biggest round?
Its most recent round, $60M in Jun 2025, is also its largest on record.
Who backed Abacum first?
Abacum's first round on record, in Jun 2025, was backed by Y Combinator, FJ Labs and K Fund and 4 others.
What stage is Abacum at?
Abacum's latest named round is a Series B, in Jun 2025.
Where is Abacum based?
Abacum is based in the United States.
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