# TandemAI funding: rounds and investors

> TandemAI has raised $26M across 2 rounds since 2025. Investors include Sequoia Capital, Qiming Venture Partners and OrbiMed. Every round with its source.

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

[Series A startup](https://millionrounds.com/companies)

# Who invested in *TandemAI*

2 rounds we have observed, with the 6 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.

Consumer Apps Biotech

Raised 12 months ago

Funding summary Updated 26 Oct 2026

**$26M** raised across 2 rounds since 2025, from 2 sources

**$3.8M** Seed **$22M** Series A

- **Latest round:** Series A, $22M Nov 2025
- **Step-up i:** 5.8×
- **Investors:** 6

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

**$3.8M** Seed

**$22M** Series A

- **First round:** Seed, $3.8M
- **Biggest round:** $22M
- **Between rounds:** 6 months

## The rounds

- **Nov 2025** Series A **$22M** *4 new* [Sequoia Capital](https://millionrounds.com/fund/sequoia-capital) [Qiming Venture Partners](https://millionrounds.com/fund/qiming-venture-partners) [OrbiMed](https://millionrounds.com/fund/orbimed) [Eight Roads Ventures](https://millionrounds.com/fund/eight-roads) Source recorded
- **May 2025** Seed **$3.8M** *2 new* [Tribe Capital](https://millionrounds.com/fund/tribe-capital) [K5 Global](https://millionrounds.com/fund/k5-global) Source recorded

## 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.

**Seed** 2025 **Series A** 2025 [Sequoia Capital](https://millionrounds.com/fund/sequoia-capital) [Qiming Venture Partners](https://millionrounds.com/fund/qiming-venture-partners) [OrbiMed](https://millionrounds.com/fund/orbimed) [Eight Roads Ventures](https://millionrounds.com/fund/eight-roads) [Tribe Capital](https://millionrounds.com/fund/tribe-capital) [K5 Global](https://millionrounds.com/fund/k5-global)

## Everyone who backed them

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

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

[OrbiMed](https://millionrounds.com/fund/orbimed) Private equity **1** round

[Eight Roads Ventures](https://millionrounds.com/fund/eight-roads) VC firm **1** round

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

[K5 Global](https://millionrounds.com/fund/k5-global) Private equity **1** round

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

## Quick answers about TandemAI

### Who invested in TandemAI?

TandemAI's investors include Sequoia Capital, Qiming Venture Partners, OrbiMed, Eight Roads Ventures and Tribe Capital, and 1 more on record.

### How much has TandemAI raised?

TandemAI has raised $26M across 2 rounds since 2025.

### When did TandemAI last raise?

TandemAI's most recent round was a Series A of $22M in Nov 2025.

### What was TandemAI's biggest round?

Its most recent round, $22M in Nov 2025, is also its largest on record.

### Who backed TandemAI first?

TandemAI's first round on record, in May 2025, was backed by Tribe Capital and K5 Global.

### What stage is TandemAI at?

TandemAI's latest named round is a Series A, in Nov 2025.

## Companies like TandemAI

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

[**Cloverleaf Bio** $33M · Sept 2026](https://millionrounds.com/company/cloverleaf-bio)[**Cheiron** $8.0M · Jul 2026](https://millionrounds.com/company/cheiron)[**Tavo Biotherapeutics** $17M · Jun 2026](https://millionrounds.com/company/tavo-biotherapeutics)[**Countable Labs** $26M · May 2026](https://millionrounds.com/company/countable-labs)[**Oricell Therapeutics** $180M · Apr 2026](https://millionrounds.com/company/oricell-therapeutics)[**Immunofoco** $29M · Mar 2026](https://millionrounds.com/company/immunofoco)

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