# Mission Zero funding: rounds and investors

> Mission Zero has raised $28M across 2 rounds since 2024. Investors include Breakthrough Energy and Stripe. Every round with its source.

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

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

# Who invested in *Mission Zero*

2 rounds we have observed, with the 2 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.

Climate Tech

Funding summary Updated 26 Oct 2026

**$28M** raised across 2 rounds since 2024, from 20 sources

- **Latest round:** Venture Aug 2025
- **Biggest round:** $28M Series A · Mar 2024
- **Investors:** 2

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

**$28M** Series A

**?** Venture

- **First round:** Series A, $28M
- **Biggest round:** $28M
- **Between rounds:** 17 months

## The rounds

- **Aug 2025** Venture **Amount undisclosed** *2 returning* [Breakthrough Energy](https://millionrounds.com/fund/breakthrough-energy) [Stripe](https://millionrounds.com/fund/stripe) Source recorded
- **Mar 2024** Series A **$28M** *2 new* [Breakthrough Energy](https://millionrounds.com/fund/breakthrough-energy) [Stripe](https://millionrounds.com/fund/stripe) Source recorded and 18 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.

**Series A** 2024 **Venture** 2025 [Breakthrough Energy](https://millionrounds.com/fund/breakthrough-energy) [Stripe](https://millionrounds.com/fund/stripe)

## Everyone who backed them

[Breakthrough Energy](https://millionrounds.com/fund/breakthrough-energy) VC firm **2** rounds

[Stripe](https://millionrounds.com/fund/stripe) Company **2** rounds

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

## Quick answers about Mission Zero

### Who invested in Mission Zero?

Mission Zero's investors include Breakthrough Energy and Stripe.

### How much has Mission Zero raised?

Mission Zero has raised $28M across 2 rounds since 2024. One round did not disclose an amount, so the total is a floor.

### When did Mission Zero last raise?

Mission Zero's most recent round was a Venture in Aug 2025.

### What was Mission Zero's biggest round?

Mission Zero's largest round on record is $28M (Series A), in Mar 2024.

### Who backed Mission Zero first?

Mission Zero's first round on record, in Mar 2024, was backed by Breakthrough Energy and Stripe.

### What stage is Mission Zero at?

Mission Zero's latest named round is a Venture, in Aug 2025.

### Where is Mission Zero based?

Mission Zero is based in the United Kingdom.

## Companies like Mission Zero

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

[**Adaptavate** $15M · Oct 2026](https://millionrounds.com/company/adaptavate)[**Metris Energy** $7.5M · Sept 2026](https://millionrounds.com/company/metris-energy)[**Isometric** $50M · Sept 2026](https://millionrounds.com/company/isometric)[**Breathe Battery Technologies** $132M · Aug 2026](https://millionrounds.com/company/breathe-battery-technologies)[**BE Design** Aug 2026](https://millionrounds.com/company/be-design)[**Oshen** $5.0M · Aug 2026](https://millionrounds.com/company/oshen)

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