Mitsui & Co. Global Investment, Inc.
Menlo Park, California, United StatesFounded 2001
Biotech & Life SciencesHealthcareEnterprise SoftwareHardware & SemiconductorsClimate & EnergyData & AnalyticsFood & AgricultureConsumerEducationMedia & Entertainment
Mitsui & Co. Global Investment, Inc. (MGI) is the corporate venture capital arm of Mitsui & Co., Ltd., founded in 2001 and headquartered in Menlo Park, California. The firm invests in early-stage companies across IT, life sciences, and clean energy, leveraging Mitsui's global network and resources to help entrepreneurs expand internationally.
Deal activity decreased year-over-year (1 deal in the last 12 months vs 2 prior). Average disclosed round size is $32.9M (across 45 rounds with reported amounts).
Portfolio
40
Fund Size
—
Top Stage
Unknown
Last 12 Mo
1
Team
PS
Paulina Szyzdek
Venture Partner
TT
Toshi Terada
Principal
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
50 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 LanzaJet | Growth | $135M | Feb 2026 |
| MMarrone Bio Innovations | Series C | $25.4M | Jan 2026 |
| EEllipsis Health, Inc. | Series A | $45M | Jun 2025 |
 Stately Bio | Seed | $12M | May 2025 |
 Stately Bio | Seed | $12M | Jan 2025 |
 Leash Bio | Seed | $9.3M | Jan 2024 |
| EEnsem | Series A | $67M | Jan 2022 |
| LanzaJet | Unknown | — | Apr 2021 |
 Proterra | Series C | $10M | Oct 2020 |
| MMarrone Bio | Series C | $25.4M | Aug 2019 |
 SPREF - Yellow Door Energy Jordan | Series A | $65M | Jan 2019 |
| PPromethera Biosciences | Series D | $132M | Jan 2019 |
 RideCell, Inc | Series B | $60M | Nov 2018 |
 Autotalks | Series D | $30M | Jan 2017 |
 Symic Bio | Series B | — | Jan 2017 |
 MetroMile | Series D | $103.1M | Sep 2016 |
 Kaltura Inc. | Series D | $100M | Jan 2015 |
| CContinuumRx | Unknown | $13.5M | Jan 2015 |
 Sirrus | Unknown | $6.5M | Jan 2015 |
| SSymic Biomedical | Bridge | $25M | Jan 2015 |
| KKaminario | Series C | $53M | Dec 2014 |
| Kaltura Inc. | Growth | $47M | Jan 2014 |
 Spire | Series A | $25M | Jan 2014 |
 OpenX Software | Series E | $22.5M | Jan 2013 |
 Armagen Technologies | Series A | $17M | Dec 2012 |
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Top Co-Investors
Mitsui & Co13 shared
Index Ventures5 shared
Accel4 shared
Khosla Ventures3 shared
RRE Ventures3 shared
Bessemer Venture Partners3 shared
Silicon Valley Bank3 shared
First Round Capital3 shared
Dolby Family Ventures3 shared
Mission BioCapital3 shared
Intel Capital3 shared
DAG Ventures3 shared
Ally Bridge Group3 shared
Presidio Ventures3 shared
Shell Ventures2 shared
Qualcomm Ventures2 shared
Village Global2 shared
Dimension2 shared
BoxOne Ventures2 shared
Last updated: 20 October 2026