# MPower Partners

MPower Partners is a Private Equity based in Tokyo, Japan.

## Overview

- **Organization type:** Private Equity
- **Headquarters:** Tokyo, Japan
- **Region:** Asia
- **Address:** Tokyo, Japan
- **Founded:** 2021
- **Assets under management:** Undisclosed
- **Website:** mpower-partners.com

## Regulatory record

- **Reports private funds:** No

## About

MPower Partners is a venture capital fund founded in 2021 in Japan. The firm provides funding and expertise to startups across various stages of development, with a focus on sectors such as healthcare, fintech, and environmental sustainability. MPower Partners has made 40 investments, including a Seed VC investment in BOOOST on March 26, 2026.

## Sectors

- Enterprise Software
- Health & Wellness
- ClimateTech
- FinTech
- Quantum
- Semiconductor
- Energy Transition & Renewables
- Mobility & Transportation
- PropTech
- Cybersecurity
- Art & Culture
- AgriTech & FoodTech
- Supply Chain

## People

- Kathy Matsui — General Partner
- Yumiko Murakami — General Partner
- Miwa Seki — General Partner

## Questions

### Who runs investment decisions at MPower Partners?

The general partners — Kathy Matsui, Yumiko Murakami, and Miwa Seki — set strategy and make investment committee decisions. Each came from a senior financial or policy role: Matsui was vice chair of Goldman Sachs Japan, Murakami headed the OECD Tokyo Centre, and Seki was a portfolio manager at a large asset manager.

### How does MPower Partners source proprietary deal flow?

Flow leans heavily on the partners’ institutional and governmental relationships inside Japan, supplemented by external advisors including Tadashi Yanai and J. Michael Evans. The WPower sidecar fund creates an additional proprietary channel into women-led startups, a demographic segment that mainstream Japanese VCs underserve.

### Does MPower participate in fund commitments or only direct deals?

MPower does direct venture and growth-equity deals, writing checks from its own fund vehicles. The firm does not market itself as a fund-of-funds, and the disclosed portfolio shows only operating-company positions.

### What investment stages does MPower typically target?

Fund II targets middle to later stages, while the WPower vehicle concentrates on early-stage companies. In practice the firm has backed seed-stage startups such as Mantra and later-stage companies like EdgeCortix, spanning the full venture lifecycle.

### How is MPower’s WPower Fund different from the main fund?

WPower Fund focuses on early-stage companies headquartered in Japan that are founded by women or deliver products and services that empower women. It sits inside the same management company but operates as a distinct vehicle with its own investment committee pipeline, directly reflecting the GPs’ public commitment to ecosystem diversity.

## Related profiles

- [MPowered Capital](https://altss.com/profile/mpowered-capital)
- [Mraz, Amerine & Associates](https://altss.com/profile/mraz-amerine-associates)

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

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