# Atmosic funding: rounds and investors

> Atmosic has raised $40M across 1 round since 2025. Investors include Walden International. Every round with its source.

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

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

# Who invested in *Atmosic*

One round we have observed, with the one investor named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Manufacturing

Funding summary Updated 26 Oct 2026

**$40M** raised across 1 round since 2025, from 1 source

- **Latest round:** Series D, $40M Mar 2025
- **Investors:** 1

See who backed them

## The rounds

- **Mar 2025** Series D **$40M** [Walden International](https://millionrounds.com/fund/walden-international) Source recorded

## Everyone who backed them

[Walden International](https://millionrounds.com/fund/walden-international) VC firm **1** round

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

## Also claim to have backed them

This firm lists Atmosic 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.

[Dolby Family Ventures](https://millionrounds.com/fund/dolby-family-ventures) VC firm Per its own site

## Quick answers about Atmosic

### Who invested in Atmosic?

Atmosic's investors include Walden International.

### How much has Atmosic raised?

Atmosic has raised $40M across 1 round since 2025.

### When did Atmosic last raise?

Atmosic's most recent round was a Series D of $40M in Mar 2025.

### What was Atmosic's biggest round?

Its most recent round, $40M in Mar 2025, is also its largest on record.

### Who backed Atmosic first?

Atmosic's first round on record, in Mar 2025, was backed by Walden International.

### What stage is Atmosic at?

Atmosic's latest named round is a Series D, in Mar 2025.

### Where is Atmosic based?

Atmosic is based in the United States.

## Companies like Atmosic

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

[**Apex** $1.1B · Oct 2026](https://millionrounds.com/company/apex)[**ZwitterCo** $58M · Oct 2026](https://millionrounds.com/company/zwitterco)[**Peak Energy** $163M · Oct 2026](https://millionrounds.com/company/peak-energy)[**Arda** $233M · Oct 2026](https://millionrounds.com/company/arda)[**Origin** $121M · Oct 2026](https://millionrounds.com/company/origin)[**Jeevy Fabrication** Oct 2026](https://millionrounds.com/company/jeevy-fabrication)

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