# EX-Fusion Inc.: Research, Osaka, Japan

> EX-Fusion Inc.: EX-Fusion Inc. is a Japan-based company focused on developing the world’s first commercial laser-powered nuclear fusion reactor for clean...

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

Japan · [Research startup](https://millionrounds.com/companies)

# EX-Fusion Inc.

EX-Fusion Inc. is a Japan-based company focused on developing the world’s first commercial laser-powered nuclear fusion reactor for clean energy.

Email

Funding reported Last round: Seed

Research Osaka, Japan

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Company summary

- **Founded:** 2021 5 years old
- **Team:** 15 11 to 50 people
- **Funding reported:** 1.9B as listed, currency not stated
- **Last round:** Seed Jul 2023

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 EX-Fusion Inc. 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 EX-Fusion Inc.

EX-Fusion Inc. is a Japan-based company focused on developing the world’s first commercial laser-powered nuclear fusion reactor for clean energy.

Founded in 2021 as a spinout from Osaka University, the company is headquartered in Suita, Osaka, with additional offices in Hamamatsu, Adelaide, and San Francisco. Led by Founder & CEO Kazuki Matsuo, EX-Fusion employs around 42 people. The company's mission is to create a gigawatt-scale power plant using fast ignition laser fusion, which utilizes deuterium and tritium extracted from seawater. This method requires significantly less laser energy than traditional approaches, making it a promising solution for stable, carbon-free electricity generation. EX-Fusion has achieved key milestones, including demonstrating continuous 10 Hz target engagement in 2024. The company also offers advanced laser and optical control technologies, high-repetition laser systems, and consulting services for industrial laser processing applications, targeting sectors such as manufacturing, semiconductors, and aerospace.

## What company datasets say EX-Fusion Inc. raised

Funding, as reported

Reported in all **1.9B** in the source's currency

Rounds **2**

Last round **Seed**

Last round size **3.1M**

Last round date **Jul 2023**

Investors listed **12**

## On 2 portfolio pages

Investors who name them

- [Miyako Capital](https://millionrounds.com/fund/miyako-capital)
- [Delight Ventures](https://millionrounds.com/fund/delight-ventures-2)

Each firm lists EX-Fusion Inc. 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 energy solution plasma physics co2 reduction clean energy & technology sustainable energy electric power generation energy storage utilities nuclear fusion laser based fusion fusion plasma co2 impact reduction environmental services research and development oil & energy fusion impact analysis

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- **Sector:** Research
- **Industry code:** NAICS 221113, 334519, SIC 1389, 4911, 3825
- **Region:** Osaka
- **Revenue:** 1M a year, as listed
- **Full record:** [Every detail in the company directory](https://millionrounds.com/directory/ex-fusion)

## Research in Japan

Startups like it

- [**Megakaryon Corporation** Kyoto · founded 2011](https://millionrounds.com/startup/megakaryon-corporation)
- [**SCOHIA PHARMA, Inc.** Fujisawa · founded 2017](https://millionrounds.com/startup/scohia-pharma-inc)
- [**Cellusion Inc.** Chuo City · founded 2015](https://millionrounds.com/startup/cellusion-inc)
- [**Riken genesis** Shinagawa City · founded 2007](https://millionrounds.com/startup/riken-genesis)
- [**Restore Vision** Minato · founded 2016](https://millionrounds.com/startup/restore-vision)
- [**GEXVal Inc.** Fujisawa · founded 2018](https://millionrounds.com/startup/gexval-inc)
- [**Alchemedicine, Inc.** Tsukuba · founded 2019](https://millionrounds.com/startup/alchemedicine-inc)
- [**MUSCA Inc.** Chuo City · founded 2016](https://millionrounds.com/startup/musca-inc)

## Is this your company?

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