United States · 
Who invested in Tinfoil?
Tinfoil's investors include Y Combinator and Pioneer Fund.
United States · Seed startup
Who invested in Tinfoil
Funding summaryUpdated 26 Oct 2026
$7.1Mraised across 1 round since 2025, from 1 source
- Latest round
- Seed, $7.1MJul 2025
- Investors
- 2
The rounds
- Jul 2025
Founders and team
From Tinfoil's own website: 3 founders, 3 on the team.
Everyone who backed them
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
These 2 firms list Tinfoil 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 Tinfoil
How much has Tinfoil raised?
Tinfoil has raised $7.1M across 1 round since 2025.
When did Tinfoil last raise?
Tinfoil's most recent round was a Seed of $7.1M in Jul 2025.
What was Tinfoil's biggest round?
Its most recent round, $7.1M in Jul 2025, is also its largest on record.
Who backed Tinfoil first?
Tinfoil's first round on record, in Jul 2025, was backed by Y Combinator and Pioneer Fund.
What stage is Tinfoil at?
Tinfoil's latest named round is a Seed, in Jul 2025.
Where is Tinfoil based?
Tinfoil is based in the United States.
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