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Key people at MPower Partners.
MPower Partners operates as a prominent venture capital firm in Japan, focused on fostering early-stage companies. The firm provides comprehensive support to startups across various development stages, offering essential capital, strategic networks, and expert guidance. Its core approach involves empowering these enterprises to achieve significant growth and expand operations both within Japan and internationally.
Established in 2021, the firm was co-founded by three experienced general partners: Kathy Matsui, Yumiko Murakami, and Miwa Seki. Each founder brings decades of combined global finance experience, encompassing asset management, investment research, and banking, alongside entrepreneurial backgrounds. This collective expertise allows them to leverage extensive networks, facilitating startup scalability.
MPower Partners specifically targets founders developing tech-enabled solutions that address complex societal challenges. The firm’s vision extends to driving sustainable growth within its portfolio, emphasizing environmental, social, and governance principles. Through tailored assistance, MPower Partners aims to cultivate impactful ventures well-equipped for long-term success and global expansion.
Key people at MPower Partners.
MPower Partners has 4 tracked investments across 4 companies. The latest tracked deal is $27.1M Series A Extension in Miresso in February 2026.
| Date | Company | Round | Lead Investor(s) | Co-Investor(s) |
|---|---|---|---|---|
| Feb 27, 2026 | Miresso | $27.1M Series A Extension | SBI Investment, Akitomo Naoi | 中上郁, 友野直人, Kyoto Capital Partners, Mitsubishi UFJ Capital, NTT Docomo |
| Aug 21, 2025 | bgrass | $850K Pre-Series A | — | CyberAgent Capital, Japan Finance Corporation, Nextblue |
| May 1, 2025 | Phoenix Tailings | $33.0M Series B Extension | Yong Hyun KIM | Ganesh Ramani, Presidio Ventures, Anish Patel |
| Oct 1, 2021 | Jupiter Intelligence | $54.0M Series C | Clearvision Ventures, Mpower Partners | Bonfire Ventures, Breakthrough Energy Ventures, Alan Cohen, John Hamer, Dcvc (data Collective), General Catalyst, Genoa Ventures, Ignition Partners, LA Famiglia, Lightspeed Venture Partners, Lowercarbon Capital, Maven Ventures, MS&AD Ventures, Offline Ventures, Rajan Anandan, Picus Capital, TCV, Tekfen Ventures, Visionaries Club, Bill TAI, Allan Thygesen, Bobby Mehta, David Baran, Jack Oliver, Roger ORF, Energize Ventures, Liberty Mutual, QBE Ventures, SYSTEMIQ |