# AtomBeam funding: rounds and investors

> AtomBeam has raised $43M across 3 rounds since 2025. Investors include MassChallenge. Every round with its source.

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

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

# Who invested in *AtomBeam*

3 rounds we have observed, with the one investor 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.

Aerospace & Space AI Big Data & Analytics

Raised this month

Funding summary Updated 26 Oct 2026

**$43M** raised across 3 rounds since 2025, from 6 sources

**$20M** Venture **$4.6M** Crowdfunding **$18M** Round

- **Latest round:** Round, $18M Oct 2026
- **Biggest round:** $20M Venture · Feb 2025
- **Step-up i:** 4×
- **Investors:** 1

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

**$20M** Venture

**$4.6M** Crowdfunding

**$18M** Round

- **First round:** Venture, $20M
- **Biggest round:** $20M
- **Usual gap between rounds:** 12 months

## The rounds

- **Oct 2026** Round **$18M** No investor was named in the report. Reported by Pulse 2.0 and 3 others
- **Nov 2025** Crowdfunding **$4.6M** *1 returning* [MassChallenge](https://millionrounds.com/fund/masschallenge) Source recorded
- **Feb 2025** Venture **$20M** *1 new* [MassChallenge](https://millionrounds.com/fund/masschallenge) Source recorded SEC filing: $1.0M sold, first sale Oct 2024

## Everyone who backed them

[MassChallenge](https://millionrounds.com/fund/masschallenge) Accelerator **2** rounds

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

## Also claim to have backed them

This firm lists AtomBeam as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.

[Huckleberry Partners](https://millionrounds.com/fund/huckleberry-partners) VC firm Per its own site

## Quick answers about AtomBeam

### Who invested in AtomBeam?

AtomBeam's investors include MassChallenge.

### How much has AtomBeam raised?

AtomBeam has raised $43M across 3 rounds since 2025.

### When did AtomBeam last raise?

AtomBeam's most recent round was an Undisclosed round of $18M in Oct 2026.

### What was AtomBeam's biggest round?

AtomBeam's largest round on record is $20M (Venture), in Feb 2025.

### Who backed AtomBeam first?

AtomBeam's first round on record, in Feb 2025, was backed by MassChallenge.

### What stage is AtomBeam at?

AtomBeam's latest named round is an Undisclosed round, in Oct 2026.

### Where is AtomBeam based?

AtomBeam is based in the United States.

## Companies like AtomBeam

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)[**STRIVE** $1.3B · Oct 2026](https://millionrounds.com/company/strive)[**Apex** $1.1B · Oct 2026](https://millionrounds.com/company/apex)[**FORT Robotics** $39M · Oct 2026](https://millionrounds.com/company/fort-robotics)[**Albert Invent** $20M · Oct 2026](https://millionrounds.com/company/albert-invent)

## Find investors like these

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