# BrainCo funding: rounds and investors

> BrainCo has raised $292M across 2 rounds since 2016. Investors include MassChallenge, IDG Capital and CDH Investments. Every round with its source.

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

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

# Who invested in *BrainCo*

2 rounds we have observed, with the 7 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.

B2C Biotech

Raised 10 months ago

Funding summary Updated 26 Oct 2026

**$292M** raised across 2 rounds since 2016, from 2 sources

**$5.5M** Series A **$286M** Venture

- **Latest round:** Venture, $286M Jan 2026
- **Step-up i:** 52.1×
- **Investors:** 7

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.

2018 2020 2022 2024 2026

**$5.5M** Series A

**$286M** Venture

- **First round:** Series A, $5.5M
- **Biggest round:** $286M
- **Between rounds:** 9.1 years

## The rounds

- **Jan 2026** Venture **$286M** *4 new* [MassChallenge](https://millionrounds.com/fund/masschallenge) [IDG Capital](https://millionrounds.com/fund/idg-capital) [CDH Investments](https://millionrounds.com/fund/cdh-investments) [Walden International](https://millionrounds.com/fund/walden-international) Source recorded
- **Dec 2016** Series A **$5.5M** *3 new* Boston Angel Club Han Tan Capital Wandai Capital Reported by FinSMEs

## 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.

**Series A** 2016 **Venture** 2026 [MassChallenge](https://millionrounds.com/fund/masschallenge) [IDG Capital](https://millionrounds.com/fund/idg-capital) [CDH Investments](https://millionrounds.com/fund/cdh-investments) [Walden International](https://millionrounds.com/fund/walden-international) Boston Angel Club Han Tan Capital Wandai Capital

## Everyone who backed them

[MassChallenge](https://millionrounds.com/fund/masschallenge) Accelerator **1** round

[IDG Capital](https://millionrounds.com/fund/idg-capital) Private equity **1** round

[CDH Investments](https://millionrounds.com/fund/cdh-investments) Private equity **1** round

[Walden International](https://millionrounds.com/fund/walden-international) VC firm **1** round

Boston Angel Club no record of our own yet **1** round

Han Tan Capital no record of our own yet **1** round

Wandai Capital no record of our own yet **1** round

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

## Also claim to have backed them

These 2 firms list BrainCo as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.

[Homebrew](https://millionrounds.com/fund/homebrew) VC firm Per its own site

[The Astro Group LLC](https://millionrounds.com/fund/the-astro-group-llc) Investor Per its own site

## Quick answers about BrainCo

### Who invested in BrainCo?

BrainCo's investors include MassChallenge, IDG Capital, CDH Investments, Walden International and Boston Angel Club, and 2 more on record.

### How much has BrainCo raised?

BrainCo has raised $292M across 2 rounds since 2016.

### When did BrainCo last raise?

BrainCo's most recent round was a Venture of $286M in Jan 2026.

### What was BrainCo's biggest round?

Its most recent round, $286M in Jan 2026, is also its largest on record.

### Who backed BrainCo first?

BrainCo's first round on record, in Dec 2016, was backed by Boston Angel Club, Han Tan Capital and Wandai Capital.

### What stage is BrainCo at?

BrainCo's latest named round is a Venture, in Jan 2026.

### Where is BrainCo based?

BrainCo is based in the United States.

## Companies like BrainCo

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)[**Prolific Machines** $105M · Oct 2026](https://millionrounds.com/company/prolific-machines)[**Dan-O's Seasoning** $25M · Oct 2026](https://millionrounds.com/company/dan-o-s-seasoning)[**IMIO** $19M · Oct 2026](https://millionrounds.com/company/imio)[**VIVA Finance** $370M · Oct 2026](https://millionrounds.com/company/viva-finance)

## Find investors like these

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