# Apollo Atomics funding: rounds and investors

> Apollo Atomics has raised $32M across 2 rounds since 2026. Investors include Y Combinator, Alumni Ventures and FCVC. Every round with its source.

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

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

# Who invested in *Apollo Atomics*

2 rounds we have observed, with the 16 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.

Cleantech Energy

Raised 2 months ago

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Funding summary Updated 5 Nov 2026

**$32M** raised across 2 rounds since 2026, from 4 sources

**$31M** Seed **$620K** Venture

- **Latest round:** Venture, $620K Sept 2026
- **Biggest round:** $31M Seed · Aug 2026
- **Investors:** 16 (1 led)

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.

2027

**$31M** Seed

**$620K** Venture

- **First round:** Seed, $31M
- **Biggest round:** $31M

## The rounds

- **Sept 2026** Venture **$620K** *3 new* *2 returning* [Y Combinator](https://millionrounds.com/fund/y-combinator) [Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) [Pioneer Fund](https://millionrounds.com/fund/pioneer-fund-2) [Scribble Ventures](https://millionrounds.com/fund/scribble-ventures) [The E14 Fund](https://millionrounds.com/fund/e14-fund) Source recorded
- **Aug 2026** Seed **$31M** *13 new* [FCVC](https://millionrounds.com/fund/fcvc) Lead [Y Combinator](https://millionrounds.com/fund/y-combinator) [Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) [Pelion Venture Partners](https://millionrounds.com/fund/pelion-venture-partners) [TeleSoft Partners](https://millionrounds.com/fund/telesoft-partners) [Robin Hood Ventures](https://millionrounds.com/fund/robin-hood-ventures) [Paul Graham](https://millionrounds.com/fund/paul-graham) [Ray Rothrock](https://millionrounds.com/fund/ray-rothrock) [Nucleation Capital](https://millionrounds.com/fund/nucleation-capital) [Duke Capital Partners](https://millionrounds.com/fund/duke-capital-partners) [Evan Meagher](https://millionrounds.com/fund/evan-meagher) [Matteo Franceschetti](https://millionrounds.com/fund/matteo-franceschetti) [Philip Johnston](https://millionrounds.com/fund/philip-johnston) Reported by Monte Carlo Capital and 2 others

## 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** 2026 **Venture** 2026 [Y Combinator](https://millionrounds.com/fund/y-combinator) [Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) [FCVC](https://millionrounds.com/fund/fcvc) L [Pioneer Fund](https://millionrounds.com/fund/pioneer-fund-2) [Pelion Venture Partners](https://millionrounds.com/fund/pelion-venture-partners) [Scribble Ventures](https://millionrounds.com/fund/scribble-ventures) [The E14 Fund](https://millionrounds.com/fund/e14-fund) [TeleSoft Partners](https://millionrounds.com/fund/telesoft-partners) [Robin Hood Ventures](https://millionrounds.com/fund/robin-hood-ventures) [Paul Graham](https://millionrounds.com/fund/paul-graham)

## Everyone who backed them

[Y Combinator](https://millionrounds.com/fund/y-combinator) Accelerator **2** rounds

[Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) VC firm **2** rounds

[FCVC](https://millionrounds.com/fund/fcvc) VC firm **1** round, led 1

[Pioneer Fund](https://millionrounds.com/fund/pioneer-fund-2) Private equity **1** round

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

[Scribble Ventures](https://millionrounds.com/fund/scribble-ventures) VC firm **1** round

[The E14 Fund](https://millionrounds.com/fund/e14-fund) VC firm **1** round

[TeleSoft Partners](https://millionrounds.com/fund/telesoft-partners) VC firm **1** round

[Robin Hood Ventures](https://millionrounds.com/fund/robin-hood-ventures) Angel network **1** round

[Paul Graham](https://millionrounds.com/fund/paul-graham) VC firm **1** round

[Ray Rothrock](https://millionrounds.com/fund/ray-rothrock) Angel **1** round

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

[Duke Capital Partners](https://millionrounds.com/fund/duke-capital-partners) VC firm **1** round

[Evan Meagher](https://millionrounds.com/fund/evan-meagher) VC firm **1** round

[Matteo Franceschetti](https://millionrounds.com/fund/matteo-franceschetti) Angel **1** round

[Philip Johnston](https://millionrounds.com/fund/philip-johnston) Angel **1** round

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

## Also claim to have backed them

These 6 firms list Apollo Atomics 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.

[AOP VC](https://millionrounds.com/fund/aop-vc) VC firm Per its own site

[Neutron Power Ventures](https://millionrounds.com/fund/neutron-power-ventures) VC firm Per its own site

[New Era Ventures](https://millionrounds.com/fund/new-era-ventures-2) VC firm Per its own site

[PaperJet Ventures](https://millionrounds.com/fund/paperjet-ventures) VC firm Per its own site

[Spot VC](https://millionrounds.com/fund/spot-vc) VC firm Per its own site

[Zero Index](https://millionrounds.com/fund/zero-index) VC firm Per its own site

## Quick answers about Apollo Atomics

### Who invested in Apollo Atomics?

Apollo Atomics's investors include Y Combinator, Alumni Ventures, FCVC, Pioneer Fund and Pelion Venture Partners, and 11 more on record.

### How much has Apollo Atomics raised?

Apollo Atomics has raised $32M across 2 rounds since 2026.

### When did Apollo Atomics last raise?

Apollo Atomics's most recent round was a Venture of $620K in Sept 2026.

### What was Apollo Atomics's biggest round?

Apollo Atomics's largest round on record is $31M (Seed), in Aug 2026, led by FCVC.

### Who backed Apollo Atomics first?

Apollo Atomics's first round on record, in Aug 2026, was backed by FCVC, Y Combinator and Alumni Ventures and 10 others.

### What stage is Apollo Atomics at?

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

### Where is Apollo Atomics based?

Apollo Atomics is based in the United States.

### Who led Apollo Atomics's rounds?

FCVC led the Seed in 2026.

## Companies like Apollo Atomics

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

[**Group14 Technologies** $632M · Oct 2026](https://millionrounds.com/company/group14-technologies)[**Mammoth Energy Services** $58M · Oct 2026](https://millionrounds.com/company/mammoth-energy-services)[**Emvolon** $22M · Oct 2026](https://millionrounds.com/company/emvolon)[**Amogy** $125M · Oct 2026](https://millionrounds.com/company/amogy)[**LanzaJet** $67M · Oct 2026](https://millionrounds.com/company/lanzajet)[**Pivot Energy** $500M · Oct 2026](https://millionrounds.com/company/pivot-energy)

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