株式会社MiRESSO
Misawa, JP · 8 known investors
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Miresso develops beryllium materials and supply chain solutions for fusion energy applications. The company aims to enable stable beryllium supply for commercial fusion reactor deployment.
Founders & leadership
Investors · 8
How we know: Global Brain's portfolio page · Not right? Tell us
How we know: Keio Innovation Initiative's portfolio page · Not right? Tell us
How we know: NTT DOCOMO Ventures's portfolio page · Not right? Tell us
How we know: Spiral Capital's portfolio page · funding news · Not right? Tell us
How we know: Spiral Innovation Partners's portfolio page · Not right? Tell us
How we know: funding news · genesiaventures.com · the VCSheet dataset · Not right? Tell us
How we know: funding news · Not right? Tell us
Funding
SEC filings, press & company announcements$12M disclosed across 1 of 3 rounds · 2024–2026
- Undisclosed amountSeries AMar 2026Source ↗
- $12MSeries A 1st CloseAug 2025 · 3 sourcesSource ↗
- Undisclosed amountSeed RoundMar 2024Source ↗
Source: company announcements and press reports — follow each round's link for the claim.
Frequently asked questions
- What does 株式会社MiRESSO do?
- Miresso develops beryllium materials and supply chain solutions for fusion energy applications. The company aims to enable stable beryllium supply for commercial fusion reactor deployment.
- Who are 株式会社MiRESSO's investors?
- 株式会社MiRESSO's investors include Global Brain, Keio Innovation Initiative, MPower, NTT DOCOMO Ventures, Spiral Capital, Spiral Innovation Partners, Genesia Ventures, SBI Investment.
- How much funding has 株式会社MiRESSO raised?
- 株式会社MiRESSO has disclosed $12M raised across 1 of its 3 known rounds.
- Where is 株式会社MiRESSO headquartered?
- 株式会社MiRESSO is headquartered in Misawa, JP.



