Who invested in Atomic Industries

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.

Y Combinator: W21

Funding summaryUpdated 26 Oct 2026

$42Mraised across 2 rounds since 2023, from 2 sources

$17MSeed$25MSeries A

Latest round: Series A, $25MJun 2025
Step-upi: 1.5×
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.

20242025

$17MSeed$25MSeries A

First round: Seed, $17M
Biggest round: $25M
Between rounds: 18 months

The rounds

Jun 2025
Series A$25M1 new3 returning
Source recorded
Dec 2023
Seed$17M3 new
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.

Seed2023Series A2025

Everyone who backed them

Y CombinatorAccelerator2rounds

8VCVC firm2rounds

Toyota VenturesVC firm2rounds

GaingelsPrivate equity1round

Missing a round, or an investor who was in one? Tell us.

Also claim to have backed them

These 2 firms list Atomic Industries 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.