# Where Nuclear Energy Startups Are Based: 2026 Map of 45 Companies

> Map of where 45 nuclear energy startups worldwide are based, city by city: Munich, Everett and San Francisco lead. $9.3B raised between them.

Source: https://millionrounds.com/geo-maps/where-nuclear-energy-startups-are-based (Millionrounds; every figure on the page links to its filing or article)

Each circle is a city, sized by how many startups are based there. Countries are shaded by their count.

## Leading cities

- Munich 2 $690M
- Everett 2 $567M
- San Francisco 2 $54M
- Aix-en-Provence 2 $47M
- Berkeley 2 $113M
- Chiyoda 1 $1.3B
- Fremont 1 $900M
- Richmond 1 $241M
- Yarnton 1 $167M
- Kearny 1 $120M
- Knoxville 1 $88M
- Shanghai 1 $58M
- Madison 1 $19M
- Garching Bei München 1 $11M
- Lausanne 1 $3.7M

## By country

- United States 22 $5.2B
- United Kingdom 8 $1.4B
- Germany 4 $701M
- Japan 2 $1.3B
- Canada 2 $304M
- China 2 $201M
- France 2 $47M
- Switzerland 1 $3.7M
- Sweden 1 $50M
- Netherlands 1 $18M

## Best-funded

- [**Valar Atomics** United States · $1.6B](https://millionrounds.com/company/valar-atomics)
- [**Oklo** United States · $1.4B](https://millionrounds.com/company/oklo)
- [**Kyoto Fusioneering** Japan · $1.3B](https://millionrounds.com/company/kyoto-fusioneering)
- [**Rolls-Royce SMR** United Kingdom · $1.2B](https://millionrounds.com/company/rolls-royce-smr)
- [**Pacific Fusion** United States · $900M](https://millionrounds.com/company/pacific-fusion)
- [**Proxima Fusion** Germany · $636M](https://millionrounds.com/company/proxima-fusion)
- [**Helion Energy** United States · $437M](https://millionrounds.com/company/helion-energy)
- [**General Fusion** Canada · $241M](https://millionrounds.com/company/general-fusion)
- [**First Light Fusion** United Kingdom · $167M](https://millionrounds.com/company/first-light-fusion)
- [**Startous fusion** China · $143M](https://millionrounds.com/company/startous-fusion)
- [**Standard Nuclear** United States · $140M](https://millionrounds.com/company/standard-nuclear)
- [**Zap Energy** United States · $130M](https://millionrounds.com/company/zap-energy)

**How this map is made.** Every startup here has raised money in rounds we track. Each is placed at the city we hold for it, matched to that city's position in GeoNames (cities of 15,000 people or more; geonames.org, CC BY 4.0); startups without a city on record count in the totals but not on the map. Rebuilt nightly; updated 15 November 2026.

## More geo maps

[All geo maps](https://millionrounds.com/geo-maps)

[Market **Where marketing tech startups are based** 1,963 startups](https://millionrounds.com/geo-maps/where-marketing-tech-startups-are-based)[Market **Where fintech startups are based** 1,633 startups](https://millionrounds.com/geo-maps/where-fintech-startups-are-based)[Market **Where vertical AI startups are based** 1,352 startups](https://millionrounds.com/geo-maps/where-vertical-ai-startups-are-based)[Market **Where crypto and Web3 startups are based** 1,297 startups](https://millionrounds.com/geo-maps/where-crypto-and-web3-startups-are-based)[Market **Where food tech startups are based** 1,226 startups](https://millionrounds.com/geo-maps/where-food-tech-startups-are-based)[Market **Where edtech startups are based** 1,014 startups](https://millionrounds.com/geo-maps/where-edtech-startups-are-based)

## Raising where these startups are?

Find the investors who back startups in these cities, with their cheques, rounds and partners, in the app with filters, lists and exports.

[Find investors](https://millionrounds.com/login?join=1&next=/app/investors)[Market maps](https://millionrounds.com/market-maps)