# Celtic Renewables funding: rounds and investors

> Celtic Renewables has raised $20M across 5 rounds since 2014. Investors include Crowdcube and Innovate UK. Every round with its source.

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

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

# Who invested in *Celtic Renewables*

5 rounds we have observed, with the 2 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 6 months ago

Funding summary Updated 26 Oct 2026

**$20M** raised across 5 rounds since 2014, from 5 sources

**$2.0M** Series B **$5.2M** Round **$616K** Round **$3.1M** Round **$9.5M** Grant

- **Latest round:** Grant, $9.5M May 2026
- **Step-up i:** 3.1×
- **Investors:** 2

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.

2014 2016 2018 2020 2022 2024 2026

**$2.0M** Series B

**$5.2M** Round

**$616K** Round

**$9.5M** Grant

- **First round:** Series B, $2.0M
- **Biggest round:** $9.5M
- **Usual gap between rounds:** 4.3 years

## The rounds

- **May 2026** Grant **$9.5M** *2 new* [Crowdcube](https://millionrounds.com/fund/crowdcube) [Innovate UK](https://millionrounds.com/fund/innovate-uk) Source recorded
- **Jan 2022** Round **$3.1M** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet SEC filing: $605K sold, first sale Nov 2021
- **Nov 2021** Round **$616K** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet SEC filing: $605K sold, first sale Nov 2021
- **Jun 2021** Round **$5.2M** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet SEC filing: $5.2M sold, first sale Jun 2021
- **Jun 2014** Series B **$2.0M** No investor was named in the report. From a historical funding record

## Funding filed with regulators

Celtic Renewables filed 4 raises, $8.9M in all. Filings say how much was sold and to how many investors; they never name the investors.

- Jan 2022 **$870K** UK share allotment
- Jan 2022 **$2.2M** UK share allotment
- Nov 2021 **$616K** UK share allotment
- Jun 2021 **$5.2M** 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 B** 2014 **Round** 2021 **Round** 2021 **Round** 2022 **Grant** 2026 [Crowdcube](https://millionrounds.com/fund/crowdcube) [Innovate UK](https://millionrounds.com/fund/innovate-uk)

## Everyone who backed them

[Crowdcube](https://millionrounds.com/fund/crowdcube) VC firm **1** round

[Innovate UK](https://millionrounds.com/fund/innovate-uk) VC firm **1** round

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

## Also claim to have backed them

This firm lists Celtic Renewables 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.

[AAlchemy Ventures](https://millionrounds.com/fund/aalchemy-ventures) Angel network Per its own site

## Quick answers about Celtic Renewables

### Who invested in Celtic Renewables?

Celtic Renewables's investors include Crowdcube and Innovate UK.

### How much has Celtic Renewables raised?

Celtic Renewables has raised $20M across 5 rounds since 2014.

### When did Celtic Renewables last raise?

Celtic Renewables's most recent round was a Grant of $9.5M in May 2026.

### What was Celtic Renewables's biggest round?

Its most recent round, $9.5M in May 2026, is also its largest on record.

### Who backed Celtic Renewables first?

Celtic Renewables's first round on record, in May 2026, was backed by Crowdcube and Innovate UK.

### What stage is Celtic Renewables at?

Celtic Renewables's latest named round is a Grant, in May 2026.

### Where is Celtic Renewables based?

Celtic Renewables is based in the United Kingdom.

## Companies like Celtic Renewables

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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