United States · 
Who invested in 305 Fitness?
305 Fitness's investors include Founders Fund, Gaingels and Sand Hill Angels.
United States · Funded startup
Who invested in 305 Fitness
Funding summaryUpdated 26 Oct 2026
$377Kraised across 1 round since 2021, from 1 source
- Latest round
- Debt, $377KNov 2021
- Investors
- 3
The rounds
- Nov 2021
Funding filed with regulators
305 Fitness filed one raise, $377K in all. Filings say how much was sold and to how many investors; they never name the investors.
- Nov 2021$377KCrowdfunding
Founders and team
From the SEC filings it signed: 3 on the team.
- Benjamin KurzbanExecutive Officer, Directori
- Sadie KurzbanExecutive Officer, Directori
- Samuel KarshenboymExecutive Officer, Directori
On the board, as filediDerek FlanzraichSarah Foley
Everyone who backed them
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
This firm lists 305 Fitness as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.
Quick answers about 305 Fitness
How much has 305 Fitness raised?
305 Fitness has raised $377K across 1 round since 2021.
When did 305 Fitness last raise?
305 Fitness's most recent round was a Debt of $377K in Nov 2021.
What was 305 Fitness's biggest round?
Its most recent round, $377K in Nov 2021, is also its largest on record.
Who backed 305 Fitness first?
305 Fitness's first round on record, in Nov 2021, was backed by Founders Fund, Gaingels and Sand Hill Angels.
What stage is 305 Fitness at?
305 Fitness's latest named round is a Debt, in Nov 2021.
Where is 305 Fitness based?
305 Fitness is based in the United States.
Companies like 305 Fitness
In the same sector, and raised in the last eighteen months.
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