# Refeyn funding: rounds and investors

> Refeyn has raised $30M across 2 rounds since 2020. Investors include Horizons Ventures, Oxford Science Enterprises and Northpond Ventures.

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

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

# Who invested in *Refeyn*

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

Raised 3 months ago

Funding summary Updated 26 Oct 2026

**$30M** raised across 2 rounds since 2020, from 2 sources

**$30M** Series A **$214K** Round

- **Latest round:** Round, $214K Jul 2026
- **Biggest round:** $30M Series A · Nov 2020
- **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.

2021 2022 2023 2024 2025 2026

**$30M** Series A

**$214K** Round

- **First round:** Series A, $30M
- **Biggest round:** $30M
- **Between rounds:** 5.8 years

## The rounds

- **Jul 2026** Round **$214K** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet
- **Nov 2020** Series A **$30M** *3 new* [Horizons Ventures](https://millionrounds.com/fund/horizons-ventures) [Oxford Science Enterprises](https://millionrounds.com/fund/oxford-science-enterprises) [Northpond Ventures](https://millionrounds.com/fund/northpond-ventures) Source recorded

## Funding filed with regulators

Refeyn filed one raise, $214K in all. Filings say how much was sold and to how many investors; they never name the investors.

- Jul 2026 **$214K** UK 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 A** 2020 **Round** 2026 [Horizons Ventures](https://millionrounds.com/fund/horizons-ventures) [Oxford Science Enterprises](https://millionrounds.com/fund/oxford-science-enterprises) [Northpond Ventures](https://millionrounds.com/fund/northpond-ventures)

## Everyone who backed them

[Horizons Ventures](https://millionrounds.com/fund/horizons-ventures) VC firm **1** round

[Oxford Science Enterprises](https://millionrounds.com/fund/oxford-science-enterprises) VC firm **1** round

[Northpond Ventures](https://millionrounds.com/fund/northpond-ventures) Private equity **1** round

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=refeyn).

## Also claim to have backed them

This firm lists Refeyn 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.

[Oxford Technology Management](https://millionrounds.com/fund/oxford-technology-management) VC firm Per its own site

## Quick answers about Refeyn

### Who invested in Refeyn?

Refeyn's investors include Horizons Ventures, Oxford Science Enterprises and Northpond Ventures.

### How much has Refeyn raised?

Refeyn has raised $30M across 2 rounds since 2020.

### When did Refeyn last raise?

Refeyn's most recent round, $214K, was in Jul 2026.

### What was Refeyn's biggest round?

Refeyn's largest round on record is $30M (Series A), in Nov 2020.

### Who backed Refeyn first?

Refeyn's first round on record, in Nov 2020, was backed by Horizons Ventures, Oxford Science Enterprises and Northpond Ventures.

### What stage is Refeyn at?

Refeyn's latest named round is a Series A, in Nov 2020.

### Where is Refeyn based?

Refeyn is based in the United Kingdom.

## Companies like Refeyn

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

[**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)[**Bactobio** $18M · Oct 2026](https://millionrounds.com/company/bactobio)[**RHYTHM AI** $23M · Sept 2026](https://millionrounds.com/company/rhythm-ai)

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