Japan · Investor

Mitsui & Co

Last cheque observed Aug 2026; 47 cheques on record.

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Deploying nowCorporate VC

SeedSeries ASeries BSmart ManufacturingAdditive ManufacturingIndustry 4.0

Deploying now
80%of best year4cheques in 12 months, 47 on record
Since the last cheque87days00hrs00min00sec
Median round$65MRounds led1 of 47Sole investor5 roundsExits4 from the portfolioMostly inUnited States, 67%
Pitch Mitsui & Co

Mitsui & Co highlights

  1. 01

    4 cheques in the last 12 months

  2. 02

    Mostly Venture and Series B: 48% of its rounds

  3. 03

    Sole investor in 5 rounds, median $13M

  4. 04

    4 exits from the portfolio

What they do

Type
Corporate VC (from a list, unverified)
Cheque size
Not stated
Stages
SeedSeries ASeries BGrowthPre-IPO
Sectors
Smart ManufacturingAdditive ManufacturingIndustry 4.0
Based in
Chiyoda-ku, Japan
Cold pitches
Not stated

The record

Every round we can evidence, newest first47 appearances

  1. 2026

    3 rounds

  2. Aug
    River MobilitySeries C · IN · TechCrunch$120MWith 10 others
  3. May
    ArmadaSeries B · US · TechStartups$230MWith 17 others
  4. Mar
    VastSeries A · US · Ventureburn$500MWith 7 others
  5. 2025

    2 rounds

  6. Dec
    Fervo EnergySeries E · US · TechCrunch$462MWith 24 others
  7. Sept
    QuantinuumGrowth · US · TechStartups$600MWith 7 others
  8. 2024

    2 rounds

  9. Dec
    HeirloomSeries B · US · Crunchbase News$150MWith 11 others
  10. Sept
    NumaSeries B · US · TechCrunch$32MLed
  11. 2019

    4 rounds

  12. Oct
    EV ConnectSeries B · US · FinSMEs$12MWith 1 other
  13. Sept
    SpireUS · Cnbc$40MWith 7 others
  14. Feb
    Tonik EnergyGB · Clearlyso$17MSole investor
  15. Jan
    Yellow Door EnergySeries A · AE · FinSMEs$65MWith 4 others
  16. 2018

    4 rounds

  17. Jun
    RidecellSeries B · US · FinSMEs$29MWith 4 others
  18. Apr
    PlaidJP · FinSMEs$25MWith 7 others
  19. Jan
    FolioSeries A · JP · Thebridge$63MWith 6 others
  20. Jan
    Element AnalyticsSeries A · US · FinSMEs$20MWith 6 others
  21. 2017

    2 rounds

  22. Nov
    TransferWiseSeries E · GB · FinSMEs$280MWith 6 others
  23. May
    CSquaredTechmoran$100MWith 3 others
  24. 2015

    6 rounds

  25. Nov
    NaaptolSeries D · IN$52MWith 3 others
  26. Oct
    Money ForwardSeries C · JP$13MWith 6 others
  27. Sept
    AxelspaceSeries A · JP$16MWith 8 others
  28. Jul
    PipelineRxVenture · US$9.1MWith 2 others
  29. May
    GeekieSeries B · BR$7.0MWith 3 others
  30. Apr
    NaaptolSeries C · IN$21MWith 3 others
  31. 2014

    5 rounds

  32. Dec
    KaminarioSeries E · US$53MWith 6 others
  33. Oct
    DocuSignSeries E · US$30MWith 8 others
  34. Feb
    KalturaSeries E · US$47MWith 9 others
  35. Jan
    GNS HealthcareSeries B · US$10MWith 2 others
  36. Jan
    AethonSeries C · US$3.1MSole investor
  37. 2013

    3 rounds

  38. Dec
    BoxSeries F · US · gigaom.com$100MWith 6 others
  39. Aug
    AxedaGrowth · US · pehub.com$12MWith 3 others
  40. Aug
    Change HealthcareSeries D · US · gigaom.com$15MWith 7 others
  41. 2012

    3 rounds

  42. Sept
    ContinuumRxVenture · US · finsmes.com$7.0MWith 3 others
  43. Aug
    Viridity EnergySeries C · US · greentechmedia.com$15MSole investor
  44. Jan
    Change HealthcareSeries C · US · changehealthcare.com$9.3MWith 3 others
  45. 2011

    2 rounds

  46. Dec
    Tres AmigasVenture · US · finsmes.com$12MSole investor
  47. Oct
    Prudent EnergyVenture · US · finsmes.com$30MWith 5 others
  48. 2010

    2 rounds

  49. Nov
    Hutchison MediPharmaVenture · CN · hmplglobal.com$13MSole investor
  50. Sept
    Cylene PharmaceuticalsSeries D · US · socaltech.com$12MWith 6 others
  51. 2009

    1 round

  52. Apr
    Beceem CommunicationsVenture · US · beceem.com$20MWith 8 others
  53. 2007

    1 round

  54. Jan
    Frontier SiliconVenture · GB · frontier-silicon.com$31MWith 7 others

An announcement gives the size of the round, not the size of this investor's cheque: the only rounds that imply a cheque are those where they were the sole named investor.

The team

We hold 11 people at this firm from the lists this database was built from: a weaker source than the filings, since a list does not say when a title ended. Login to see them.

Exits from the portfolio

Companies it backed that were later bought or listed4 in all

Change HealthcareBought by Emdeon$135MNov 2014
Location LabsBought by AVG Technologies$220MSept 2014
AxedaBought by Parametric Technology (PTC)$170MJul 2014
Beceem CommunicationsBought by Broadcom$316MOct 2010

An exit counts when it came after the firm's first round in the company. From historical deal records.

Companies it bought

Acquisitions by the firm itself

The Delta CompaniesUndisclosedFeb 2014
Portek InternationalUndisclosedSept 2011

Who they invest alongside

The investors most often in the same rounds as Mitsui & Co. A count of rooms they were both in, not a relationship either has claimed.

SVB CapitalVC firm4rounds togetherDFJVC firm3rounds togetherIntel CapitalCorporate VC3rounds togetherJP MorganInvestment bank3rounds togetherNew Enterprise AssociatesVC firm3rounds togetherOmidyar NetworkFamily office3rounds togetherBlueRun VenturesVC firm2rounds togetherBreakthrough EnergyVC firm2rounds togetherCanaanVC firm2rounds togetherGoogleAccelerator2rounds togetherHoneywellInvestment firm2rounds togetherITOCHU Technology VenturesVC firm2rounds together

Recently backed

The latest companies Mitsui & Co put money into.

Armada$230M · May 2026Fervo Energy$462M · Dec 2025Quantinuum$600M · Sept 2025Numa$32M · Sept 2024EV Connect$12M · Oct 2019Spire$40M · Sept 2019

Quick answers about Mitsui & Co

What does Mitsui & Co invest in?

Mitsui & Co invests most often at Venture and Series B (48% of the rounds on record), in sectors such as Smart Manufacturing, Additive Manufacturing and Industry 4.0.

How active is Mitsui & Co?

47 investments on record, 4 of them in the last 12 months, and it led 1. The most recent was in Aug 2026.

What has Mitsui & Co invested in recently?

Its most recent investments on record: River Mobility (Series C, Aug 2026), Armada (Series B, May 2026) and Vast (Series A, Mar 2026).

How big are Mitsui & Co's cheques?

The median round it joins is $65M.

Does Mitsui & Co lead rounds?

Sometimes: it led 1 of its 47 investments on record (2%).

Where does Mitsui & Co invest?

Most of the companies it backs are in the United States (67%), Japan (10%) and India (8%).

Is Mitsui & Co investing now?

Yes: it is actively investing, with 4 investments in the last 12 months.

Who does Mitsui & Co invest alongside?

Most often SVB Capital (4 rounds together), DFJ (3 rounds together) and Intel Capital (3 rounds together).

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Built from the rounds we watched, its filings and its own website, refreshed every night. How we count · Report a correction · Is this your firm? Claim it