Who invested in Peptone

2 rounds we have observed, with the 3 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.

Biotech

Funding summaryUpdated 26 Oct 2026

$63Mraised across 2 rounds since 2022, from 2 sources

$40MSeries A$23MSeries A

Latest round: Series A, $23MSept 2023
Biggest round: $40MSeries A · Jun 2022
Investors: 3

See who backed them

The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

2023

$40MSeries A$23MSeries A

First round: Series A, $40M
Biggest round: $40M
Between rounds: 16 months

The rounds

Sept 2023
Series A$23M
No investor was named in the report.
Shares issued, filed with Companies House (SH01); no report of this raise yet
Jun 2022
Series A$40M3 new
Source recorded

Funding filed with regulators

Peptone filed 2 raises, $38M in all. Filings say how much was sold and to how many investors; they never name the investors.

Sept 2023$23MUK share allotment
Apr 2022$15MUK share allotment

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.

Series A2022Series A2023

Bessemer Venture Partners

Founders Factory

Hoxton Ventures

Everyone who backed them

Bessemer Venture PartnersVC firm1round

Founders FactoryAccelerator1round

Hoxton VenturesAngel network1round

Missing a round, or an investor who was in one? Tell us.

Also claim to have backed them

This firm lists Peptone 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.