# MiroBio funding: rounds and investors > MiroBio has raised $144M across 3 rounds since 2019. Investors include Oxford Science Enterprises, Samsara BioCapital and SR One. Every round with its source. Source: https://millionrounds.com/company/mirobio (Millionrounds; every figure on the page links to its filing or article) United Kingdom · [Series B startup](https://millionrounds.com/companies) # Who invested in *MiroBio* 3 rounds we have observed, with the 5 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 Healthcare Funding summary Updated 26 Oct 2026 **$144M** raised across 3 rounds since 2019, from 3 sources **$33M** Round **$13M** Series A **$97M** Series B - **Latest round:** Series B, $97M Jun 2022 - **Step-up i:** 7.2× - **Investors:** 5 (2 led) 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. 2020 2021 2022 **$33M** Round **$13M** Series A **$97M** Series B - **First round:** Round, $33M - **Biggest round:** $97M - **Usual gap between rounds:** 2 years ## The rounds - **Jun 2022** Series B **$97M** *1 new* *3 returning* [OrbiMed](https://millionrounds.com/fund/orbimed) [SR One](https://millionrounds.com/fund/sr-one) [Oxford Science Enterprises](https://millionrounds.com/fund/oxford-science-enterprises) [Samsara BioCapital](https://millionrounds.com/fund/samsara-biocapital) Source recorded - **Oct 2021** Series A **$13M** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet - **Oct 2019** Round **$33M** *4 new* [Oxford Science Enterprises](https://millionrounds.com/fund/oxford-science-enterprises) Lead [Samsara BioCapital](https://millionrounds.com/fund/samsara-biocapital) Lead [SR One](https://millionrounds.com/fund/sr-one) [Advent Life Sciences Llp](https://millionrounds.com/fund/advent-life-sciences) Reported by Innovation ## Funding filed with regulators MiroBio filed 4 raises, $59M in all. Filings say how much was sold and to how many investors; they never name the investors. - Jul 2022 **$1.5M** UK share allotment - Jun 2022 **$43M** UK share allotment - Apr 2022 **$804K** UK share allotment - Oct 2021 **$13M** 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. **Round** 2019 **Series A** 2021 **Series B** 2022 [Oxford Science Enterprises](https://millionrounds.com/fund/oxford-science-enterprises) L [Samsara BioCapital](https://millionrounds.com/fund/samsara-biocapital) L [SR One](https://millionrounds.com/fund/sr-one) [OrbiMed](https://millionrounds.com/fund/orbimed) [Advent Life Sciences Llp](https://millionrounds.com/fund/advent-life-sciences) ## Everyone who backed them [Oxford Science Enterprises](https://millionrounds.com/fund/oxford-science-enterprises) VC firm **2** rounds, led 1 [Samsara BioCapital](https://millionrounds.com/fund/samsara-biocapital) VC firm **2** rounds, led 1 [SR One](https://millionrounds.com/fund/sr-one) Corporate VC **2** rounds [OrbiMed](https://millionrounds.com/fund/orbimed) Private equity **1** round [Advent Life Sciences Llp](https://millionrounds.com/fund/advent-life-sciences) VC firm **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=mirobio). ## Quick answers about MiroBio ### Who invested in MiroBio? MiroBio's investors include Oxford Science Enterprises, Samsara BioCapital, SR One, OrbiMed and Advent Life Sciences Llp. ### How much has MiroBio raised? MiroBio has raised $144M across 3 rounds since 2019. ### When did MiroBio last raise? MiroBio's most recent round was a Series B of $97M in Jun 2022. ### What was MiroBio's biggest round? Its most recent round, $97M in Jun 2022, is also its largest on record. ### Who backed MiroBio first? MiroBio's first round on record, in Oct 2019, was backed by Oxford Science Enterprises, Samsara BioCapital and SR One and 1 others. ### What stage is MiroBio at? MiroBio's latest named round is a Series B, in Jun 2022. ### Where is MiroBio based? MiroBio is based in the United Kingdom. ### Who led MiroBio's rounds? Oxford Science Enterprises led the Undisclosed round in 2019. ## Companies like MiroBio In the same sector, and raised in the last eighteen months. [**Coherence Neuro** $55M · Oct 2026](https://millionrounds.com/company/coherence-neuro)[**HydRegen** $12M · Oct 2026](https://millionrounds.com/company/hydregen)[**XRlabs** $8.4M · Oct 2026](https://millionrounds.com/company/xrlabs)[**OMass Therapeutics** $442M · Oct 2026](https://millionrounds.com/company/omass-therapeutics)[**CMR Surgical** $1.1B · Oct 2026](https://millionrounds.com/company/cmr-surgical)[**MintNeuro** $26M · Oct 2026](https://millionrounds.com/company/mintneuro) ## 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