# Simplex Capital Investment

Simplex Capital Investment is a Private Equity based in Tokyo, Japan.

## Overview

- **Organization type:** Private Equity
- **Headquarters:** Tokyo, Japan
- **Region:** Asia
- **Address:** Tokyo, Japan
- **Founded:** 2022
- **Assets under management:** Undisclosed
- **Website:** www.simplexasset.com
- **LinkedIn:** https://jp.linkedin.com/company/simplex-asset-management

## Regulatory record

- **Reports private funds:** No

## About

Simplex Capital Investment provides management and administration of investment partnership assets. It is a pioneer of hedge funds in Japan, providing high-quality financial strategies and products to investors.

## Sectors

- Private Credit
- Real Estate
- Infrastructure

## Offices

- Hong Kong

## People

- 水嶋浩雅 (Hiromasa Mizushima) — Representative Director, President & CEO

## Questions

### Who runs investment decisions at Simplex Capital Investment?

Hiromasa Mizushima is the Representative Director, President, and CEO of the parent group, Simplex Financial Holdings, and has led the firm since 2005. Day-to-day investment decisions for the private-markets arm are made by the Simplex Capital Investment team under the group's executive leadership. Specific investment committee members are not publicly disclosed.

### How is Simplex Capital Investment related to Simplex Asset Management?

Both are subsidiaries of Simplex Financial Holdings, a Tokyo PRO Market-listed company. Simplex Asset Management, founded in 1999, manages the group's public-market strategies including engagement funds, ETFs, and QIS. Simplex Capital Investment, established in 2022, is the dedicated private-markets entity for venture capital and PIPE deals.

### Where does Simplex Financial Group's underlying capital come from?

The group was founded in 1999 as an independent hedge fund manager and has since attracted capital from Japanese institutional investors, pension funds, and high-net-worth individuals. The wealth-origin is not attributed to a single family or founder's prior operating business.

### What is Simplex's known posture on co-investments alongside external GPs?

Simplex has not publicly stated a co-investment policy for external GPs. Its proprietary team and operational hubs in Hong Kong and Europe suggest a preference for direct sourcing and internally managed vehicles.

## Related profiles

- [Simple Wealth Planning](https://altss.com/profile/simple-wealth-planning)
- [Simplex Ventures](https://altss.com/profile/simplex-ventures)

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Last updated: 2026-05-29T12:19:23.012Z

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