# ONI funding: rounds and investors

> ONI has raised $75M across 1 round since 2021. Investors include ARCH Venture Partners, Puhua Capital and Future Planet Capital. Every round with its source.

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

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

# Who invested in *ONI*

One round we have observed, with the 5 investors named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Biotech

Funding summary Updated 26 Oct 2026

**$75M** raised across 1 round since 2021, from 1 source

- **Latest round:** Series B, $75M Dec 2021
- **Investors:** 5

See who backed them

## The rounds

- **Dec 2021** Series B **$75M** [ARCH Venture Partners](https://millionrounds.com/fund/arch-venture-partners) [Puhua Capital](https://millionrounds.com/fund/puhua-capital) [Future Planet Capital](https://millionrounds.com/fund/future-planet-capital) [Oxford Science Enterprises](https://millionrounds.com/fund/oxford-science-enterprises) [Casdin Capital](https://millionrounds.com/fund/casdin-capital) Source recorded

## Everyone who backed them

[ARCH Venture Partners](https://millionrounds.com/fund/arch-venture-partners) VC firm **1** round

[Puhua Capital](https://millionrounds.com/fund/puhua-capital) VC firm **1** round

[Future Planet Capital](https://millionrounds.com/fund/future-planet-capital) VC firm **1** round

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

[Casdin Capital](https://millionrounds.com/fund/casdin-capital) VC firm **1** round

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

## Also claim to have backed them

This firm lists ONI 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.

[Combination VC](https://millionrounds.com/fund/combination-vc) VC firm Per its own site

## Quick answers about ONI

### Who invested in ONI?

ONI's investors include ARCH Venture Partners, Puhua Capital, Future Planet Capital, Oxford Science Enterprises and Casdin Capital.

### How much has ONI raised?

ONI has raised $75M across 1 round since 2021.

### When did ONI last raise?

ONI's most recent round was a Series B of $75M in Dec 2021.

### What was ONI's biggest round?

Its most recent round, $75M in Dec 2021, is also its largest on record.

### Who backed ONI first?

ONI's first round on record, in Dec 2021, was backed by ARCH Venture Partners, Puhua Capital and Future Planet Capital and 2 others.

### What stage is ONI at?

ONI's latest named round is a Series B, in Dec 2021.

### Where is ONI based?

ONI is based in the United Kingdom.

## Companies like ONI

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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