# Guest Mobile

Guest Mobile is an Asset Manager based in Sagamihara City, Japan.

## Overview

- **Organization type:** Asset Manager
- **Headquarters:** Sagamihara City, Japan
- **Region:** Asia
- **Address:** Sagamihara City, Kanagawa, Japan
- **Founded:** 2014
- **Assets under management:** Undisclosed
- **Website:** www.guestmobile.jp
- **LinkedIn:** https://www.linkedin.com/company/guestmobile

## Regulatory record

- **Reports private funds:** No

## About

Guest Mobile is a Japanese investment company headquartered in Sagamihara City. It focuses on a Venture Capital strategy.

## Sectors

- SpaceTech
- Real Estate

## People

- Yuken Nakajima — Representative Director and President
- Isamu Nakajima — Founder and Owner

## 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.

### 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.

## Related profiles

- [Guerrilla Capital](https://altss.com/profile/guerrilla-capital)
- [Guggenheim Investments](https://altss.com/profile/guggenheim-investments)

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Last updated: 2026-06-03T20:00:00.000Z

Canonical page: https://altss.com/profile/guest-mobile

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