# Opto Biosystems funding: rounds and investors

> Opto Biosystems has raised $2.3M across 1 round since 2023. Investors include Blackbird Ventures and Possible Ventures. Every round with its source.

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

United Kingdom · [Pre-seed startup](https://millionrounds.com/companies)

# Who invested in *Opto Biosystems*

One round we have observed, with the 2 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.

Healthcare

Funding summary Updated 26 Oct 2026

**$2.3M** raised across 1 round since 2023, from 1 source

- **Latest round:** Pre-seed, $2.3M Mar 2023
- **Investors:** 2

See who backed them

## The rounds

- **Mar 2023** Pre-seed **$2.3M** [Blackbird Ventures](https://millionrounds.com/fund/blackbird-ventures-2) [Possible Ventures](https://millionrounds.com/fund/possible-ventures) Source recorded

## Everyone who backed them

[Blackbird Ventures](https://millionrounds.com/fund/blackbird-ventures-2) VC firm **1** round

[Possible Ventures](https://millionrounds.com/fund/possible-ventures) VC firm **1** round

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

## Quick answers about Opto Biosystems

### Who invested in Opto Biosystems?

Opto Biosystems's investors include Blackbird Ventures and Possible Ventures.

### How much has Opto Biosystems raised?

Opto Biosystems has raised $2.3M across 1 round since 2023.

### When did Opto Biosystems last raise?

Opto Biosystems's most recent round was a Pre-seed of $2.3M in Mar 2023.

### What was Opto Biosystems's biggest round?

Its most recent round, $2.3M in Mar 2023, is also its largest on record.

### Who backed Opto Biosystems first?

Opto Biosystems's first round on record, in Mar 2023, was backed by Blackbird Ventures and Possible Ventures.

### What stage is Opto Biosystems at?

Opto Biosystems's latest named round is a Pre-seed, in Mar 2023.

### Where is Opto Biosystems based?

Opto Biosystems is based in the United Kingdom.

## Companies like Opto Biosystems

In the same sector, and raised in the last eighteen months.

[**Coherence Neuro** $55M · Oct 2026](https://millionrounds.com/company/coherence-neuro)[**XRlabs** $8.4M · Oct 2026](https://millionrounds.com/company/xrlabs)[**CMR Surgical** $1.1B · Oct 2026](https://millionrounds.com/company/cmr-surgical)[**MintNeuro** $26M · Oct 2026](https://millionrounds.com/company/mintneuro)[**52North** $4.3M · Sept 2026](https://millionrounds.com/company/52north)[**RHYTHM AI** $23M · Sept 2026](https://millionrounds.com/company/rhythm-ai)

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