# FemtoAI funding: rounds and investors

> FemtoAI has raised $22M across 2 rounds since 2025. Investors include Gaingels, Amino Capital and J2 Ventures. Every round with its source.

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

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

# Who invested in *FemtoAI*

2 rounds we have observed, with the 4 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.

AI

Raised 2 months ago

Funding summary Updated 26 Oct 2026

**$22M** raised across 2 rounds since 2025, from 2 sources

**$60K** Venture **$22M** Venture

- **Latest round:** Venture, $22M Sept 2026
- **Step-up i:** 360×
- **Investors:** 4

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.

2025 2026

**$60K** Venture

**$22M** Venture

- **First round:** Venture, $60K
- **Biggest round:** $22M
- **Between rounds:** 20 months

## The rounds

- **Sept 2026** Venture **$22M** *3 returning* [Gaingels](https://millionrounds.com/fund/gaingels) [Amino Capital](https://millionrounds.com/fund/amino-capital) [J2 Ventures](https://millionrounds.com/fund/j2-ventures) Source recorded
- **Jan 2025** Venture **$60K** *4 new* [Gaingels](https://millionrounds.com/fund/gaingels) [MassChallenge](https://millionrounds.com/fund/masschallenge) [Amino Capital](https://millionrounds.com/fund/amino-capital) [J2 Ventures](https://millionrounds.com/fund/j2-ventures) 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.

**Venture** 2025 **Venture** 2026 [Gaingels](https://millionrounds.com/fund/gaingels) [Amino Capital](https://millionrounds.com/fund/amino-capital) [J2 Ventures](https://millionrounds.com/fund/j2-ventures) [MassChallenge](https://millionrounds.com/fund/masschallenge)

## Everyone who backed them

[Gaingels](https://millionrounds.com/fund/gaingels) Private equity **2** rounds

[Amino Capital](https://millionrounds.com/fund/amino-capital) Accelerator **2** rounds

[J2 Ventures](https://millionrounds.com/fund/j2-ventures) VC firm **2** rounds

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

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

## Quick answers about FemtoAI

### Who invested in FemtoAI?

FemtoAI's investors include Gaingels, Amino Capital, J2 Ventures and MassChallenge.

### How much has FemtoAI raised?

FemtoAI has raised $22M across 2 rounds since 2025.

### When did FemtoAI last raise?

FemtoAI's most recent round was a Venture of $22M in Sept 2026.

### What was FemtoAI's biggest round?

Its most recent round, $22M in Sept 2026, is also its largest on record.

### Who backed FemtoAI first?

FemtoAI's first round on record, in Jan 2025, was backed by Gaingels, MassChallenge and Amino Capital and 1 others.

### What stage is FemtoAI at?

FemtoAI's latest named round is a Venture, in Sept 2026.

### Where is FemtoAI based?

FemtoAI is based in the United States.

## Companies like FemtoAI

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

[**SpaceX** $42B · Oct 2026](https://millionrounds.com/company/spacex)[**xPay** $1.5M · Oct 2026](https://millionrounds.com/company/xpay)[**Albert Invent** $20M · Oct 2026](https://millionrounds.com/company/albert-invent)[**FORT Robotics** $39M · Oct 2026](https://millionrounds.com/company/fort-robotics)[**Pika** $216M · Oct 2026](https://millionrounds.com/company/pika)[**Vertical Semiconductor** $84M · Oct 2026](https://millionrounds.com/company/vertical-semiconductor)

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