Who invested in Spirea

3 rounds we have observed, with the 4 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

Raised 5 months ago

Funding summaryUpdated 26 Oct 2026

$3.4Mraised across 3 rounds since 2022, from 3 sources

$2.9MVenture$243KRound$261KRound

Latest round: Round, $261KMay 2026
Biggest round: $2.9MVenture · Jun 2022
Investors: 4

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.

2023202420252026

$2.9MVenture$243KRound$261KRound

First round: Venture, $2.9M
Biggest round: $2.9M
Usual gap between rounds: 3.6 years

The rounds

May 2026
Round$261K
No investor was named in the report.
Shares issued, filed with Companies House (SH01); no report of this raise yet
Oct 2022
Round$243K
No investor was named in the report.
Shares issued, filed with Companies House (SH01); no report of this raise yet
Jun 2022
Venture$2.9M4 new
Source recorded

Funding filed with regulators

Spirea filed 2 raises, $504K in all. Filings say how much was sold and to how many investors; they never name the investors.

May 2026$261KUK share allotment
Oct 2022$243KUK 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.

Venture2022Round2022Round2026

Everyone who backed them

Innovate UKVC firm1round

IP GroupVC firm1round

SyndicateRoomVC firm1round

ACF InvestorsVC firm1round

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

Also claim to have backed them

This firm lists Spirea 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.