MPower
Venture capitalPre-Seed–Late Stage · 10 people tracked
Also known as 株式会社MPower
Investment thesis
MPower Partners backs entrepreneurs building the next era across all growth stages, providing funding, a broad global network spanning public and private sectors, and domain expertise to help startups reach their next stage of growth. Founded as Japan's first ESG-specialized fund by three female general partners with deep experience in global finance — macro and micro corporate analysis, asset management, investment research, and capital strategy — the firm emphasizes diversity, environmental impact, and ESG-driven management within its portfolio companies while connecting founders to overseas institutional investors, customers, and talent.
Source: firm website, verified Aug 3, 2026.
Team · 10 people
from the firm's website
What they invest in
from 22 of 35 portfolio companiesAI & Machine Learning ×5Healthtech ×5SaaS ×5Consumer ×4Deep Tech ×4Energy ×3Enterprise Software ×3LegalTech ×3
HQs:Japan×19United States×2Indonesia×1
Investments · 35 tracked
founders shown can be your intro pathAclima operates a network of mobile and stationary sensors that measure air pollution and greenhouse gases at block-by-block resolution, and offers analytics software (Aclima Pro) and a free consumer app (air.health) that turn these measurements into environmental data for governments, companies, and communities.
Climate TechData & InfrastructureGovTechIoTSan Francisco, US
EX-Fusion is a Japanese private company developing laser-based nuclear fusion energy technology, aiming to decarbonize existing energy sources and contribute to carbon neutrality.
CleantechDeep TechEnergyKyoto, JP
Kazuki Matsuo(代表取締役社長 (President & CEO))
Company co-led by Takaya Matsuda; works in social-impact/design.
Knowns provides consumer research services through an online platform, designed for rapid and accessible market research.
Marketing Tech
LQUOM develops long-distance quantum communication technology and quantum repeaters to enable theoretically unhackable quantum internet for sectors including finance, telemedicine, and defense.
CybersecurityDeep TechQuantum ComputingYokohama, JP
Kazuya Niizeki(Co-founder & CEO)Tomoyuki Horikiri(Co-founder & CSO, Director)
Coroyawa is a specialized flooring material designed to reduce fracture and trauma risk for elderly users by combining stable walking comfort with impact absorption during falls.
HardwareHealthtechMedical DevicesNew MaterialsHamamatsu, JP
Translation-industry technology company; CEO Shonosuke Ishiwatari.
Miresso develops beryllium materials and supply chain solutions for fusion energy applications.
Deep TechEnergyNew MaterialsMisawa, JP
Masaru Nakamichi(CEO)Yu Nakano(Technical Development Director)
Nalalys is a company focused on preventing fraud and creating fair, safe business environments through technology.
AI & Machine LearningCybersecurityEnterprise SoftwareLegalTechSaaS
長谷島 良治(代表取締役 CEO/Founder)
Phoenix Tailings develops clean technology for rare earth element refining in the United States.
Advanced ManufacturingCleantechClimate TechEnergyFintechNew MaterialsBoston, US
Nick Myers(CEO & Co-Founder)Thomas Villalón(CTO & Co-Founder)Anthony Balladon(Chief Commercial Officer & Co-Founder)Michelle Chao(Cofounder)
BoardNichola Eliovits(Director)Yong Hyun Kim(Director)
Sakana AI develops frontier AI research and products, including large language models, multi-agent orchestration systems, and AI solutions tailored for Japanese enterprises and public sector organizations.
AI & Machine LearningDeep TechDefense TechTokyo, JP
David Ha(Co-Founder & CEO)Ren Ito(Co-Founder & Chairman)Llion Jones(Co-Founder & CTO)
Career and skill development platform; CEO Eri Fukuda.
TAZ develops anti-aging products and drug discovery research focused on cellular senescence removal and longevity science.
BiotechHealthtechLongevityTokyo, JP
Shoko Takahashi(Representative Director (代表取締役))
TXP Medical develops and provides medical data systems for emergency, intensive care, and emergency-services settings (the NEXT Stage ER series) as well as an oncology research data system, along with a medical data platform, real-world data analysis, and clinical research support.
AI & Machine LearningData & InfrastructureDigital HealthHealthtechMedical DevicesTokyo, JP
園生 智弘(代表取締役 (Representative Director / CEO))原田 惇(取締役CTO (Director & CTO))大熊 一毅(取締役 / 弁護士 (Director, Attorney))後藤 匡啓(執行役員CSO (Executive Officer & CSO))恩田 淳(執行役員 (Executive Officer))
Wovn Technologies provides website and app localization services through its WOVN.io and WOVN.app products, enabling organizations to translate and adapt their digital properties for multiple languages.
Developer ToolsEnterprise SoftwareMarketing TechSaaSTokyo, JP
Takaharu Hayashi(CEO)
Ichirou operates a caregiving workforce sharing platform and provides home care support and facility referral services for the elderly care market in Japan.
B2B MarketplacesDigital HealthHealthtechHR TechTokyo, JP
Uniam develops cat-focused pet products and services, including fresh food recipes and personalized nutrition plans overseen by veterinarians and animal nutrition specialists.
ConsumerDirect to Consumer
Unifa develops "Lumie" (Look at me), a suite of products for childcare facilities and parents that includes IoT devices such as a medically registered body-motion sensor and childcare AI to record children's photos, health status, and developmental notes.
AI & Machine LearningConsumerEdTechIoTSaaS
Sukutachi is a mobile app that connects construction businesses and craftspeople to discover work opportunities and expand their professional networks.
Construction TechMarketplaces
RABO provides pet care services and technology solutions for cat owners and pet service professionals in Japan.
ConsumerHealthtechWellness & FitnessTokyo, JP
Yukiko Iyo(President & CEO)
HERALBONY is a Japanese art and lifestyle brand that licenses and commercializes artwork created by artists with disabilities (including intellectual disabilities and autism), turning their work into products under an "artist first" model that fairly compensates the artists and welfare facilities.
ConsumerCreator EconomyImpact & Social GoodMedia & EntertainmentMorioka, JP
Sanae Sasaki松田文登(Co-founder)松田崇弥(Co-founder)
Portfolio news
latest coverage across their companiesPhoenix Tailings · techstars.com · Jul 17, 2026
MiRESSO · thebridge.jp · Mar 5, 2026
Sakana AI · techcrunch.com · Nov 17, 2025
Frequently asked questions
- What stage does MPower invest at?
- MPower invests at the Pre-Seed, Seed, Series A, Series B, Series C, Growth, Late Stage stages.
- What sectors does MPower focus on?
- MPower focuses on Climate Tech, Impact & Social Good, Sector Agnostic.
Media · Podcasts & interviews
featuring the teamLeading Funding Rounds | General Partner of MPower Partners | Kathy Matsui
Decode · Kathy Matsui
Japan Ahead: MPower Partners' Kathy Matsui on ESG
Bloomberg Television · Kathy Matsui
Images
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