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Guest Mobile
Isamu Nakajima's Guest Mobile, a Sagamihara-based investment firm, holds SpaceX in its portfolio alongside regional real estate interests.
Guest Mobile
Guest Mobile is a Japanese investment company headquartered in Sagamihara City. It focuses on a Venture Capital strategy.
General information
Firm type
Generalist
Year founded
—
AUM
Undisclosed
Location
Region
Asia
Country
Japan
City
Sagamihara City
Corporate office
Sagamihara City, Kanagawa, Japan
Principals
Yuken Nakajima
Representative Director and President
Isamu Nakajima
Founder and Owner
Sector focus
Frequently asked questions
Who runs investment decisions at Guest Mobile?
Yuken Nakajima serves as Representative Director and President with day-to-day authority, while founder Isamu Nakajima remains the owner. Their related venture vehicle Angel Box Co. Ltd. in Tokyo handles specialized private equity commitments like SpaceX.
How does Guest Mobile source investment opportunities?
The firm maintains deep roots in Kanagawa Prefecture through the Sagamihara Chamber of Commerce and its relationship with the Hirobe Housing real estate network. Access to SpaceX suggests an additional pipeline of international opportunities, though the specific sourcing channel is not publicly documented.
Does Guest Mobile participate in fund commitments or only direct deals?
Known public positions point toward direct deal-making — the SpaceX holding was undertaken via Angel Box Co. Ltd., a corporate venture entity, rather than through a blind-pool fund investment.
What is the relationship between Guest Mobile and Angel Box?
Angel Box Co. Ltd. is a Tokyo-based investment entity under the Guest Mobile umbrella, used to execute private equity investments in non-domestic companies. It also carries its own philanthropic mission.
Where does the underlying capital come from?
The Nakajima family's wealth origins are not publicly detailed. Isamu Nakajima's prominence in Japanese thoroughbred racing — owning champion horses Biwa Hayahide and Narita Brian — indicates significant personal capital deployed in high-value alternative assets.
Profile maintained by Altss using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.
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