United States · 
Who invested in Cooler Heads?
Cooler Heads's investors include Gaingels and Golden Seeds.
2026
$11MSeries A$3.3MSeries AUnited States · Series A startup
Who invested in Cooler Heads
2 rounds we have observed, with the 2 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.
Raised 4 months ago
Funding summaryUpdated 26 Oct 2026
$14Mraised across 2 rounds since 2025, from 3 sources
$11MSeries A$3.3MSeries A
- Latest round
- Series A, $3.3MJul 2026
- Biggest round
- $11MSeries A · Jul 2025
- Investors
- 2
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Series A, $11M Jul 2025
- Biggest round
- $11M Series A · Jul 2025
- Between rounds
- 12 months from the last two
The rounds
- Jul 2026Series A$3.3M2 returning
Source recorded and 1 otherSEC filing: $3.3M sold, first sale Jul 2026
- Jul 2025
Who was in which round
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Everyone who backed them
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
These 11 firms list Cooler Heads 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 Cooler Heads
How much has Cooler Heads raised?
Cooler Heads has raised $14M across 2 rounds since 2025.
When did Cooler Heads last raise?
Cooler Heads's most recent round was a Series A of $3.3M in Jul 2026.
What was Cooler Heads's biggest round?
Cooler Heads's largest round on record is $11M (Series A), in Jul 2025.
Who backed Cooler Heads first?
Cooler Heads's first round on record, in Jul 2025, was backed by Gaingels and Golden Seeds.
What stage is Cooler Heads at?
Cooler Heads's latest named round is a Series A, in Jul 2026.
Where is Cooler Heads based?
Cooler Heads is based in the United States.
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In the same sector, and raised in the last eighteen months.
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