Mitsui & Co is a corporate venture arm and private equity firm. Based in Chiyoda-ku, Japan. Known portfolio companies include Fervo Energy, Commonwealth Fusion Systems, Ceva Santé Animale, LanzaJet, Miresso and Quantinuum, 10 companies in all.
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Investment focus
- Stage
- GrowthLate-Stage
Contacts
Who to pitch at Mitsui & Co
Mitsui & Co portfolio companies (10)
- Fervo Energy
- Commonwealth Fusion Systems
- Ceva Santé Animale
- LanzaJet
- Miresso
- Quantinuum
- Kite Mobility
- Mainstream Renewable Power
- Derit Seeds
- Kaer
Co-investors
Funds that share portfolio companies with Mitsui & Co.
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About Mitsui & Co
The firm's listing covers sectors AI, Climate, Commerce and FinTech, and focus areas AgriTech, Analytics, Automotive and Clean Energy; known deals cluster at Growth and Late-Stage.
The contact to approach at Mitsui & Co is Kazuaki Iba (Associate).
Across the known portfolio, 20 co-investors appear alongside Mitsui & Co, including Merieux Equity Partners, Groupe ADP and Good & Well.
Frequently asked questions
What is Mitsui & Co?
Mitsui & Co is a corporate venture arm and private equity firm based in Chiyoda-ku, Japan, with a known portfolio of 10 companies. The portfolio comes from public investment records rather than from the firm, so deals that never surfaced publicly are not in it.
What does Mitsui & Co invest in?
Listed sectors include AI, Climate, Commerce and FinTech; listed focus areas include AgriTech, Analytics, Automotive and Clean Energy. Those tags come from the portfolio attached to the firm, so they describe what has been backed rather than a stated mandate for what comes next.
What stage does Mitsui & Co invest at?
The known deals of Mitsui & Co include Growth and Late-Stage rounds. Check that against your own round before reaching out: stage mismatch is the most common reason a well matched sector still goes nowhere.
Who should I pitch at Mitsui & Co?
One person at Mitsui & Co is on file, listed as a contact for the firm, with their own profile page.
How do I contact Mitsui & Co?
Any email address on file for the firm is masked on this page and readable inside RaiseHunt after you create an account. The one person attached to the firm has their own page, which shows whether an address is on file for them.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal