Who invested in Alter?
Alter's investors include Y Combinator, General Catalyst, Greycroft, Betaworks and Play Ventures, and 1 more on record.

United States · Pre-seed startup
Funding summaryUpdated 26 Oct 2026
$3.5Mraised across 2 rounds since 2021, from 2 sources
Each circle is a round, placed by date and sized by amount. The line above is the running total.
Source recorded
From Alter's own website: 2 founders.
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Alter's investors include Y Combinator, General Catalyst, Greycroft, Betaworks and Play Ventures, and 1 more on record.
Alter has raised $3.5M across 2 rounds since 2021.
Alter's most recent round was a Pre-seed of $500K in Sept 2025.
Alter's largest round on record is $3.0M (Seed), in Oct 2021.
Alter's first round on record, in Oct 2021, was backed by Y Combinator, General Catalyst and Greycroft and 3 others.
Alter's latest named round is a Pre-seed, in Sept 2025.
Alter is based in the United States.
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