# BTB Therapeutics funding: rounds and investors

> BTB Therapeutics has raised $12M across 2 rounds since 2025. Investors include SMBC Venture Capital and Kyoto University Innovation Capital Co., Ltd.

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

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

# Who invested in *BTB Therapeutics*

2 rounds we have observed, with the 2 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 2 months ago

Funding summary Updated 26 Oct 2026

**$12M** raised across 2 rounds since 2025, from 2 sources

**$3.4M** Venture **$8.9M** Round

- **Latest round:** Round, $8.9M Aug 2026
- **Step-up i:** 2.6×
- **Investors:** 2

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.

2026

**$3.4M** Venture

**$8.9M** Round

- **First round:** Venture, $3.4M
- **Biggest round:** $8.9M
- **Between rounds:** 9 months

## The rounds

- **Aug 2026** Round **$8.9M** No investor was named in the report. Filed with the SEC (Form D); no report of this raise yet SEC filing: $8.9M sold, first sale Aug 2026
- **Nov 2025** Venture **$3.4M** *2 new* [SMBC Venture Capital](https://millionrounds.com/fund/smbc-venture-capital-2) [Kyoto University Innovation Capital Co., Ltd](https://millionrounds.com/fund/kyoto-university-innovation-capital-co-ltd) Source recorded SEC filing: $3.4M sold, first sale Nov 2025

## Founders and team

From BTB Therapeutics's own website: 1 on the team.

- **Takashi Kiyoizumi** BTB Therapeutics GK CEO

Advisers *Akihisa Mori* *Kenneth W. Locke* *Mariano A. Garcia-Blanco* *Silvio Gutkind* *Thomas Forest Farb-Horch*

## 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.

**Venture** 2025 **Round** 2026 [SMBC Venture Capital](https://millionrounds.com/fund/smbc-venture-capital-2) [Kyoto University Innovation Capital Co., Ltd](https://millionrounds.com/fund/kyoto-university-innovation-capital-co-ltd)

## Everyone who backed them

[SMBC Venture Capital](https://millionrounds.com/fund/smbc-venture-capital-2) Investment bank **1** round

[Kyoto University Innovation Capital Co., Ltd](https://millionrounds.com/fund/kyoto-university-innovation-capital-co-ltd) VC firm **1** round

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

## Quick answers about BTB Therapeutics

### Who invested in BTB Therapeutics?

BTB Therapeutics's investors include SMBC Venture Capital and Kyoto University Innovation Capital Co., Ltd.

### How much has BTB Therapeutics raised?

BTB Therapeutics has raised $12M across 2 rounds since 2025.

### When did BTB Therapeutics last raise?

BTB Therapeutics's most recent round, $8.9M, was in Aug 2026.

### What was BTB Therapeutics's biggest round?

Its most recent round, $8.9M in Aug 2026, is also its largest on record.

### Who backed BTB Therapeutics first?

BTB Therapeutics's first round on record, in Nov 2025, was backed by SMBC Venture Capital and Kyoto University Innovation Capital Co., Ltd.

### What stage is BTB Therapeutics at?

BTB Therapeutics's latest named round is a Venture, in Nov 2025.

### Where is BTB Therapeutics based?

BTB Therapeutics is based in the United States.

## Companies like BTB Therapeutics

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

[**Star Therapeutics** $325M · Oct 2026](https://millionrounds.com/company/star-therapeutics)[**Promaxo** $106M · Oct 2026](https://millionrounds.com/company/promaxo)[**AI** $18M · Oct 2026](https://millionrounds.com/company/ai)[**Baba** $40M · Oct 2026](https://millionrounds.com/company/baba)[**Rejuvenate Bio** $13M · Oct 2026](https://millionrounds.com/company/rejuvenate-bio)[**Clinical Ink** $24M · Oct 2026](https://millionrounds.com/company/clinical-ink)

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