# Pacific Fusion: Renewables & environment, Fremont, United States

> Pacific Fusion: Pacific Fusion was founded in 2023 to deliver commercial fusion energy to power cities, businesses and homes. Based in Fremont, United States.

Source: https://millionrounds.com/startup/pacific-fusion (Millionrounds; every figure on the page links to its filing or article)

United States · [Renewables & environment startup](https://millionrounds.com/companies)

# Pacific Fusion

Pacific Fusion was founded in 2023 to deliver commercial fusion energy to power cities, businesses and homes.

Funding reported Last round: Series A

Renewables & environment Fremont, United States

Company summary

- **Founded:** 1997 29 years old
- **Team:** 130 51 to 200 people
- **Funding reported:** $1.0B in dollars
- **Last round:** Series A Oct 2024

How sure we are

- ✓ **Listed** We know it exists and what it does
- 2 **Funding reported** A company dataset reports a raise
- 3 **Observed** A filing or a dated announcement confirms a round

No round for Pacific Fusion has been confirmed by a filing or an announcement yet, so nothing here counts toward an investor's record. [How we decide](https://millionrounds.com/methodology)

## About Pacific Fusion

Pacific Fusion was founded in 2023 to deliver commercial fusion energy to power cities, businesses and homes.

We're rapidly designing and building a pulser-driven inertial fusion system to achieve net facility gain – more fusion energy output than stored energy input – by 2030. Our plans are ambitious. We have raised over $900M so far from incredible investors, resourcing us to deliver on these plans. We are bringing together the best scientists, engineers, and operators from the fusion community, hard tech industry, and other sectors. We are united by a shared sense of urgency to provide clean power for the world, particularly managing climate change while meeting growing global energy demand. You can read more about us in this letter from our founders: https://pacificfusion.com/updates/founders-letter

## What company datasets say Pacific Fusion raised

Funding, as reported

Reported in all **$1.0B** in dollars

Last round **Series A**

Last round size **$900M**

Last round date **Oct 2024**

Investors listed **5**

## Founders and team

From Pacific Fusion's own website: 1 founder, 1 on the team.

**Patrick Collison** Co-founder and CEO of Stripe

- **Hemant Taneja** CEO and Managing Director of General Catalyst

## On 4 portfolio pages

Investors who name them

- [Berkeley Frontier Fund](https://millionrounds.com/fund/berkeley-frontier-fund)
- [Up Partners](https://millionrounds.com/fund/up-partners)
- [Red Bear Ventures](https://millionrounds.com/fund/red-bear-ventures)
- [Unmatched Ventures](https://millionrounds.com/fund/unmatched-ventures)

Each firm lists Pacific Fusion on its own website. That is the firm's claim, a weaker thing than a round we watched, but a named source.

## The company, in detail

What they build

Known for

fusion technology fusion system scalability fusion system modularity manufacturing scalability fusion system components net facility gain high-current pulses clean energy & technology fusion system innovation fusion research fusion system high-gain inertial fusion renewable energy power generation hydrogen fusion fusion target design validation pulsed power technology fusion rapid iteration

Built with from their website

Amazon SES Google Tag Manager Envoy Squarespace ECommerce Homestead OpticStudio Fabric MailChimp Microsoft Project Google Workspace

+8 more

CloudFlare Gem Viewport Meta LinkedIn Ads Fluid Ads SAP Materials Management Amazon Simple Email Service Feathr

- **Sector:** Renewables & environment
- **Industry code:** NAICS 221118, 541715, SIC 3621, 4911, 8731
- **Region:** California
- **Full record:** [Every detail in the company directory](https://millionrounds.com/directory/pacific-fusion-e71e155c71)

## Renewables & environment in United States

Startups like it

- [**Prometheus** Santa Cruz · founded 2019 *Raised*](https://millionrounds.com/company/prometheus)
- [**Antora Energy** San Jose · founded 2018 *Raised*](https://millionrounds.com/company/antora-energy)
- [**Panthalassa** Portland · founded 2021 *Raised*](https://millionrounds.com/company/panthalassa)
- [**Lunar Energy** Mountain View · founded 2020 *Raised*](https://millionrounds.com/company/lunar-energy)
- [**Thea Energy** Kearny · founded 2022 *Raised*](https://millionrounds.com/company/thea-energy)
- [**LanzaJet** Chicago · founded 2020 *Raised*](https://millionrounds.com/company/lanzajet)
- [**Ice Energy** Costa Mesa · founded 2003 *Raised*](https://millionrounds.com/company/ice-energy)
- [**Voya Energy** Hayward · founded 2025 *Raised*](https://millionrounds.com/company/voya-energy)

## Is this your company?

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