Switzerland · 
Who invested in Boost?
Boost's investors include Y Combinator, Gaingels, SOSV, Norwest Venture Partners and Greycroft, and 8 more on record.
20242025
?Venture$19MSeries B
Switzerland · Series B startup
Who invested in Boost
Funding summaryUpdated 26 Oct 2026
$19Mraised across 2 rounds since 2023, from 3 sources
- Latest round
- Series B, $19MJun 2025
- Investors
- 13
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Venture Oct 2023
- Biggest round
- $19M Series B · Jun 2025
- Between rounds
- 20 months from the last two
The rounds
- Jun 2025
- Oct 2023VentureAmount undisclosed7 new
Source recorded
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.
Quick answers about Boost
How much has Boost raised?
Boost has raised $19M across 2 rounds since 2023. One round did not disclose an amount, so the total is a floor.
When did Boost last raise?
Boost's most recent round was a Series B of $19M in Jun 2025.
What was Boost's biggest round?
Its most recent round, $19M in Jun 2025, is also its largest on record.
Who backed Boost first?
Boost's first round on record, in Oct 2023, was backed by Y Combinator, Gaingels and Norwest Venture Partners and 4 others.
What stage is Boost at?
Boost's latest named round is a Series B, in Jun 2025.
Where is Boost based?
Boost is based in Switzerland.
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