# Opto Health funding: rounds and investors > Opto Health has raised $3.1M across 7 rounds since 2022. Every round with its source. Source: https://millionrounds.com/company/opto-health (Millionrounds; every figure on the page links to its filing or article) United Kingdom · [Venture startup](https://millionrounds.com/companies) # Who invested in *Opto Health* 7 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 Raised 6 months ago Follow Opto Health and see its new rounds in your feed. [Start following](https://millionrounds.com/login?join=1&why=follow&next=%2Fcompany%2Fopto-health) Funding summary Updated 15 Nov 2026 **$3.1M** raised across 7 rounds since 2022, from 7 sources **$560K** Round **$758K** Round **$735K** Round - **Latest round:** Round, $735K May 2026 - **Biggest round:** $758K Round · Sept 2025 - **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 2026 **$163K** Round **$560K** Round **$539K** Round **$316K** Round **?** Venture **$758K** Round **$735K** Round - **First round:** Round, $163K - **Biggest round:** $758K - **Usual gap between rounds:** 8 months ## The rounds - **May 2026** Round **$735K** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet - **Sept 2025** Round **$758K** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet - **Apr 2025** Venture **Amount undisclosed** No investor was named in the report. Source recorded - **Jun 2024** Round **$316K** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet - **Oct 2023** Round **$539K** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet - **Mar 2023** Round **$560K** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet - **Sept 2022** Round **$163K** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet ## Funding filed with regulators Opto Health filed 6 raises, $3.1M in all. Filings say how much was sold and to how many investors; they never name the investors. - May 2026 **$735K** UK share allotment - Sept 2025 **$758K** UK share allotment - Jun 2024 **$316K** UK share allotment - Oct 2023 **$539K** UK share allotment - Mar 2023 **$560K** UK share allotment - Sept 2022 **$163K** UK share allotment ## Quick answers about Opto Health ### How much has Opto Health raised? Opto Health has raised $3.1M across 7 rounds since 2022. One round did not disclose an amount, so the total is a floor. ### When did Opto Health last raise? Opto Health's most recent round, $735K, was in May 2026. ### What was Opto Health's biggest round? Opto Health's largest round on record is $758K, in Sept 2025. ### What stage is Opto Health at? Opto Health's latest named round is a Venture, in Apr 2025. ### Where is Opto Health based? Opto Health is based in the United Kingdom. ## Companies like Opto Health 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