United Kingdom · Seed startup

Who invested in Isomab

4 rounds we have observed, with the 0 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.

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Funding summaryUpdated 1 Nov 2026

$16Mraised across 4 rounds since 2022, from 4 sources

$487KRound$9.5MSeed$3.0MSeed$2.8MSeed

Latest round: Seed, $2.8MJan 2025
Biggest round: $9.5MSeed · Feb 2024
Investors: 0

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.

202320242025

$487KRound$9.5MSeed$3.0MSeed$2.8MSeed

First round: Round, $487K
Biggest round: $9.5M
Usual gap between rounds: 7 months

The rounds

Jan 2025
Seed$2.8M
No investor was named in the report.
Shares issued, filed with Companies House (SH01); no report of this raise yet
Aug 2024
Seed$3.0M
No investor was named in the report.
Shares issued, filed with Companies House (SH01); no report of this raise yet
Feb 2024
Seed$9.5M
No investor was named in the report.
Source recorded
Dec 2022
Round$487K
No investor was named in the report.
Shares issued, filed with Companies House (SH01); no report of this raise yet

Funding filed with regulators

Isomab filed 3 raises, $6.2M in all. Filings say how much was sold and to how many investors; they never name the investors.

Jan 2025$2.8MUK share allotment
Aug 2024$3.0MUK share allotment
Dec 2022$487KUK share allotment

Also claim to have backed them

This firm lists Isomab 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.