# Isomab funding: rounds and investors

> Isomab has raised $16M across 4 rounds since 2022. Every round with its source.

Source: https://millionrounds.com/company/isomab (Millionrounds; every figure on the page links to its filing or article)

United Kingdom · [Seed startup](https://millionrounds.com/companies)

# 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.

Biotech B2B

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Funding summary Updated 1 Nov 2026

**$16M** raised across 4 rounds since 2022, from 4 sources

**$487K** Round **$9.5M** Seed **$3.0M** Seed **$2.8M** Seed

- **Latest round:** Seed, $2.8M Jan 2025
- **Biggest round:** $9.5M Seed · 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.

2023 2024 2025

**$487K** Round

**$9.5M** Seed

**$3.0M** Seed

**$2.8M** Seed

- **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 **$2.8M** UK share allotment
- Aug 2024 **$3.0M** UK share allotment
- Dec 2022 **$487K** UK 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.

[Longview Ventures](https://millionrounds.com/fund/broadview-ventures-inc) VC firm Per its own site

## Quick answers about Isomab

### How much has Isomab raised?

Isomab has raised $16M across 4 rounds since 2022.

### When did Isomab last raise?

Isomab's most recent round was a Seed of $2.8M in Jan 2025.

### What was Isomab's biggest round?

Isomab's largest round on record is $9.5M (Seed), in Feb 2024.

### What stage is Isomab at?

Isomab's latest named round is a Seed, in Jan 2025.

### Where is Isomab based?

Isomab is based in the United Kingdom.

## Companies like Isomab

In the same sector, and raised in the last eighteen months.

[**SAVA** $21M · Oct 2026](https://millionrounds.com/company/sava)[**Blackwall** $162M · Oct 2026](https://millionrounds.com/company/blackwall)[**HydRegen** $12M · Oct 2026](https://millionrounds.com/company/hydregen)[**OMass Therapeutics** $442M · Oct 2026](https://millionrounds.com/company/omass-therapeutics)[**CMR Surgical** $1.1B · Oct 2026](https://millionrounds.com/company/cmr-surgical)[**Living Optics** $61M · Oct 2026](https://millionrounds.com/company/living-optics)

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