# Yellowstone Biosciences funding: rounds and investors

> Yellowstone Biosciences has raised $21M across 2 rounds since 2024. Every round with its source.

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

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

# Who invested in *Yellowstone Biosciences*

2 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.

Healthcare Regtech

Follow Yellowstone Biosciences and see its new rounds in your feed. [Start following](https://millionrounds.com/login?join=1&why=follow&next=%2Fcompany%2Fyellowstone-biosciences)

Funding summary Updated 15 Nov 2026

**$21M** raised across 2 rounds since 2024, from 2 sources

**$185K** Round **$21M** Series A

- **Latest round:** Series A, $21M Jun 2024
- **Step-up i:** 113.1×
- **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.

2025

**$185K** Round

**$21M** Series A

- **First round:** Round, $185K
- **Biggest round:** $21M
- **Between rounds:** 2 months

## The rounds

- **Jun 2024** Series A **$21M** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet
- **Mar 2024** Round **$185K** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet

## Funding filed with regulators

Yellowstone Biosciences filed 2 raises, $21M in all. Filings say how much was sold and to how many investors; they never name the investors.

- Jun 2024 **$21M** UK share allotment
- Mar 2024 **$185K** UK share allotment

## Founders and team

From Yellowstone Biosciences's own website: 2 founders, 4 on the team.

**Julian Hirst** Co-Founder and Chief Financial Officer

**Professor Paresh Vyas** Co-Founder and Chief Scientific Officer

- **Jim MacDonald** Chief Executive Officer
- **Dr. Ita O’Kelly** Chief Operating Officer
- **Gonzalo Garcia** Interim Chief Business Officer
- **Chris Hollowood** Non-Executive Director

## Quick answers about Yellowstone Biosciences

### How much has Yellowstone Biosciences raised?

Yellowstone Biosciences has raised $21M across 2 rounds since 2024.

### When did Yellowstone Biosciences last raise?

Yellowstone Biosciences's most recent round was a Series A of $21M in Jun 2024.

### What was Yellowstone Biosciences's biggest round?

Its most recent round, $21M in Jun 2024, is also its largest on record.

### What stage is Yellowstone Biosciences at?

Yellowstone Biosciences's latest named round is a Series A, in Jun 2024.

### Where is Yellowstone Biosciences based?

Yellowstone Biosciences is based in the United Kingdom.

## Companies like Yellowstone Biosciences

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

[**Neobe Therapeutics** $9.1M · Nov 2026](https://millionrounds.com/company/neobe-therapeutics)[**Bioliberty** $22M · Nov 2026](https://millionrounds.com/company/bioliberty)[**T-Therapeutics** $279M · Nov 2026](https://millionrounds.com/company/t-therapeutics)[**Alethio Therapeutics** $98M · Nov 2026](https://millionrounds.com/company/alethio-therapeutics)[**bit.bio** $264M · Nov 2026](https://millionrounds.com/company/bit-bio)[**1nhaler** $7.4M · Nov 2026](https://millionrounds.com/company/1nhaler)

## Find investors like these

Search every investor by what they have actually funded, then narrow to your stage and market. Free.

Open the investor searchOr these rounds in the app