# LightOx funding: rounds and investors > LightOx has raised $3.5M across 4 rounds since 2024. Investors include Innovate UK, Northstar Ventures and Praetura Ventures. Every round with its source. Source: https://millionrounds.com/company/lightox (Millionrounds; every figure on the page links to its filing or article) United Kingdom · [Venture startup](https://millionrounds.com/companies) # Who invested in *LightOx* 4 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 8 months ago Funding summary Updated 26 Oct 2026 **$3.5M** raised across 4 rounds since 2024, from 4 sources **$1.9M** Venture **$577K** Round **$670K** Round **$361K** Round - **Latest round:** Round, $361K Mar 2026 - **Biggest round:** $1.9M Venture · May 2024 - **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. 2025 2026 **$1.9M** Venture **$577K** Round **$670K** Round **$361K** Round - **First round:** Venture, $1.9M - **Biggest round:** $1.9M - **Usual gap between rounds:** 5 months ## The rounds - **Mar 2026** Round **$361K** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet - **Oct 2025** Round **$670K** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet - **Apr 2025** Round **$577K** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet - **May 2024** Venture **$1.9M** *3 new* [Innovate UK](https://millionrounds.com/fund/innovate-uk) [Northstar Ventures](https://millionrounds.com/fund/northstar-ventures) [Praetura Ventures](https://millionrounds.com/fund/praetura-ventures) Source recorded ## 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. **Venture** 2024 **Round** 2025 **Round** 2025 **Round** 2026 [Innovate UK](https://millionrounds.com/fund/innovate-uk) [Northstar Ventures](https://millionrounds.com/fund/northstar-ventures) [Praetura Ventures](https://millionrounds.com/fund/praetura-ventures) ## Everyone who backed them [Innovate UK](https://millionrounds.com/fund/innovate-uk) VC firm **1** round [Northstar Ventures](https://millionrounds.com/fund/northstar-ventures) VC firm **1** round [Praetura Ventures](https://millionrounds.com/fund/praetura-ventures) VC firm **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=lightox). ## Also claim to have backed them This firm lists LightOx 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. [Unity Angels](https://millionrounds.com/fund/unity-angels) Angel network Per its own site ## Quick answers about LightOx ### Who invested in LightOx? LightOx's investors include Innovate UK, Northstar Ventures and Praetura Ventures. ### How much has LightOx raised? LightOx has raised $3.5M across 4 rounds since 2024. ### When did LightOx last raise? LightOx's most recent round, $361K, was in Mar 2026. ### What was LightOx's biggest round? LightOx's largest round on record is $1.9M (Venture), in May 2024. ### Who backed LightOx first? LightOx's first round on record, in May 2024, was backed by Innovate UK, Northstar Ventures and Praetura Ventures. ### What stage is LightOx at? LightOx's latest named round is a Venture, in May 2024. ### Where is LightOx based? LightOx is based in the United Kingdom. ## Companies like LightOx 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) ## 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