United States · 
Who invested in Small Door?
Small Door's investors include Alumni Ventures, Lerer Hippeau, Ring Capital, Primary Venture Partners and Declaration Partners, and 3 more on record.
United States · Series C startup
Who invested in Small Door
One round we have observed, with the 8 investors named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.
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Funding summaryUpdated 5 Nov 2026
$35Mraised across 1 round since 2025, from 1 source
- Latest round
- Series C, $35MJul 2025
- Investors
- 8
The rounds
- Jul 2025
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 Small Door 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 Small Door
How much has Small Door raised?
Small Door has raised $35M across 1 round since 2025.
When did Small Door last raise?
Small Door's most recent round was a Series C of $35M in Jul 2025.
What was Small Door's biggest round?
Its most recent round, $35M in Jul 2025, is also its largest on record.
Who backed Small Door first?
Small Door's first round on record, in Jul 2025, was backed by Alumni Ventures, Lerer Hippeau and Ring Capital and 5 others.
What stage is Small Door at?
Small Door's latest named round is a Series C, in Jul 2025.
Where is Small Door based?
Small Door is based in the United States.
Companies like Small Door
In the same sector, and raised in the last eighteen months.
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