# Optieum Biotechnologies funding: rounds and investors

> Optieum Biotechnologies has raised across 1 round since 2026. Investors include ANRI, UntroD Capital and Keio Innovation Initiative.

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

Japan · [Venture startup](https://millionrounds.com/companies)

# Who invested in *Optieum Biotechnologies*

One round we have observed, with the 3 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

Raised 7 months ago

Funding summary Updated 26 Oct 2026

**Undisclosed** raised across 1 round since 2026, from 1 source

- **Latest round:** Venture Apr 2026
- **Investors:** 3

See who backed them

## The rounds

- **Apr 2026** Venture **Amount undisclosed** [ANRI](https://millionrounds.com/fund/anri) [UntroD Capital](https://millionrounds.com/fund/untrod-capital) [Keio Innovation Initiative](https://millionrounds.com/fund/keio-innovation-initiative-inc) Source recorded

## Everyone who backed them

[ANRI](https://millionrounds.com/fund/anri) VC firm **1** round

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

[Keio Innovation Initiative](https://millionrounds.com/fund/keio-innovation-initiative-inc) VC firm **1** round

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

## Quick answers about Optieum Biotechnologies

### Who invested in Optieum Biotechnologies?

Optieum Biotechnologies's investors include ANRI, UntroD Capital and Keio Innovation Initiative.

### How much has Optieum Biotechnologies raised?

Optieum Biotechnologies has raised 1 round since 2026, none with a disclosed amount.

### When did Optieum Biotechnologies last raise?

Optieum Biotechnologies's most recent round was a Venture in Apr 2026.

### Who backed Optieum Biotechnologies first?

Optieum Biotechnologies's first round on record, in Apr 2026, was backed by ANRI, UntroD Capital and Keio Innovation Initiative.

### What stage is Optieum Biotechnologies at?

Optieum Biotechnologies's latest named round is a Venture, in Apr 2026.

### Where is Optieum Biotechnologies based?

Optieum Biotechnologies is based in Japan.

## Companies like Optieum Biotechnologies

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

[**Kinish** $35M · Oct 2026](https://millionrounds.com/company/kinish)[**RadioNano Therapeutics** $955K · Oct 2026](https://millionrounds.com/company/radionano-therapeutics)[**Dioseve** $12M · Jun 2026](https://millionrounds.com/company/dioseve)[**xCARE** $862K · Jun 2026](https://millionrounds.com/company/xcare)[**Neusignal Therapeutics** $40M · Jun 2026](https://millionrounds.com/company/neusignal-therapeutics)[**Epsilon Molecular Engineering** $2.7M · May 2026](https://millionrounds.com/company/epsilon-molecular-engineering)

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