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Mitsui & Co.

Japanese general trading company (sogo shosha) with global investments.

Active Corporate VC 🇯🇵 Japan · Japan · Since 1947
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Portfolio Active
2
Latest Quantinuum
Deal flow
$918M
3 rounds
Unicorns
1
≥ $1B valuation
Founded
1947
79 yrs
Latest
Sep 2025
Quantinuum

About Mitsui & Co.

Japanese general trading company (sogo shosha) with global investments.

Investment activity

2024–2025
$300M
$600M
1
'24
1
'25

Sector focus

🏢 AI Infrastructure 3
⚛️ AI + Quantum 2
🏭 AI Manufacturing 1
🧠 Foundation Models 1

Geographic focus

US 1
JP 1

Portfolio

2

Quantinuum

World's largest integrated quantum computing company

Preferred Networks

Preferred Networks develops and provides all four layers of the AI technology value chain: AI semiconductors, computing infrastructure, generative AI foundation models, and AI products/solutions.

Co-investors

8

Amgen

2 shared

JPMorgan Chase

2 shared

Honeywell

2 shared

Mizuho Bank

1 shared

Hitachi

1 shared

Hakuhodo DY Holdings

1 shared

FANUC Corporation

1 shared

Quanta Computer

1 shared

Recent rounds

3
Sep 4, 2025 Equity Round $600M Quantinuum
Jan 16, 2024 Equity Round $300M Quantinuum
Dec 11, 2017 Corporate $18M Preferred Networks