We help startups get ready
to take off on a global scale

Global Brain is an independent venture capital firm that aims to bring new
industries to the society through extensive hands-on support for
startups and open innovation with large corporations.

AUM
$2.7B+
Invested
$1.4B+
Deals
1,200+
Active Portfolio
400+
IPO
42
M&A
87

Mirrativ is newly listed on
TSE Growth Market.

As one of the largest mobile game streaming platforms in Japan, Mirrativ has achieved drastic growth through creating new communities and game experiences. Global Brain truly wishes Mirrativ even greater prosperity through its continuous endeavors such as new businesses based on its “All for Streamers” strategy.

Mirrativ, Inc.

TSE Growth Market

December 18, 2025

News

Press Release

GB Universe

Funds & Projects

We manage flagship funds funded by
institutional
investors and companies,
as well as CVC fund
and co-investment
projects with our partners.

Team

We are a team of globally prominent and
diverse
backgrounds, providing in-depth
support to
our portfolio companies.

Investors
75
Supporters
40
Fund Management
15
Operations
37
  • Atsushi Matsuda

    Atsushi Matsuda

    Venture Partner

  • Megumi Asatsuma

    Megumi Asatsuma

    Corporate Management Group

    Director

  • Ryo Kiyofuji

    Ryo Kiyofuji

    Investment Group

    Director

  • Noriko Usui

    Noriko Usui

    Fund Management Group

    Partner

  • Marika Tazaki

    Marika Tazaki

    Investment Group

    Partner

  • Kotaro Nagawa

    Kotaro Nagawa

    Investment Group

    Director

  • Thomas Duong

    Thomas Duong

    Corporate Management Group

    Director

  • View full team