Top 20 Sustainability Angel Investors in Japan (May 2026)

Portfolio highlights

• Voicy — Voicy is a mobile platform that recruits both media personalities and news organizations; the entertainers read the news so users can get the latest info from their favorite voices.
• Carstay — Carstay Comfortable Overnight in car or tentdo itCar tripWith guests who want to enjoy.
• Telework — Telework is a multi-location workspace that utilizes vacant seats and rooms.

Portfolio highlights

• Autify — Autify - Revolutionizing Software Testing with the most advanced AI-powered Software Testing Tool
• Peach Cars — Peach Cars building a solution for those looking to buy and sell vehicles whole information on vehicles and hassle-free transactions.
• AnotherBall — AnotherBall = Digital + Entertainment + Token economy

Portfolio highlights

• NodeFlair — NodeFlair aims to help tech talents make better career decisions through jobs, salaries, reviews, company insights, and more
• AGRI SMILE — AGRI SMILE is a platform that focuses on sharing agricultural technology.
• Rensource Energy — Rensource develops, finances, and manages critical energy infrastructure for African enterprises with the objective of powering Africa's economy

Portfolio highlights

• Zeigo — Zeigo is a company formed by a team of like-minded clean energy & tech pioneers with a mission to help companies transition to a low carbon economy.
• Ecolectro — Ecolectro is solving the biggest challenges in making Green Hydrogen. Our alkaline ion-exchange membranes and polymers make clean fuel and decarbonize industry.
• Sniffer Robotics — Comprehensive methane emissions detection and quantification, advanced imagery and analytics; Sniffer Robotics provides advanced solutions that benefit the environment.

Portfolio highlights

• Carstay — Carstay Comfortable Overnight in car or tentdo itCar tripWith guests who want to enjoy.

Portfolio highlights

• Anique — Anique is a service that utilizes blockchain technology to make artworks.
• Atmoph — A smart digital window that opens to beautiful scenery from around the world. By simply putting it on your desk or hanging it on the wall, Atmoph Window will open up a whole new world before you.
• FRAME00 — FRAME00 is a blockchain technology startup developing a decentralized funding platform. Our product "Dev Protocol" is an open source middleware that fairly evaluates any activity and support sustainability with staking. More innovative way than donating your money.

Portfolio highlights

• Now Do — Now Do provides online growth revolution platform.
• Manabie — Manabie is an Education Technology start-up company on a mission to provide a new style of online & offline merged learning around the world. We provide students with everything they need for efficient learning; high-quality learning materials, great learning environments, personal coaches and more! We believe that our new method of learning,integrating online and offline will dramatically innovate the way students learn.
• Luup — Luup is an Internet Company.

Portfolio highlights

• enechain — enechain provides liquidity in Japan’s energy market by brokering OTC transactions of energy.
• Stock — Stock develops products that relieve the stress of sharing information from teams around the world.
• OVERFLOW — OVERFLOW provides consulting and recruitment services.

Portfolio highlights

• Morght — Morght is an information technology service company.
• BionicM — BionicM develops high-performance robot prostheses that enhance mobility for people with disabilities.BionicM has been conducting research on innovative technologies since 2015 at the University of Tokyo's Information Systems Engineering Laboratory (JSK) under the guidance of Professor Inaba and utilizing the world's most advancedrobotics research. In 2016, we were adopted by the Japan Science and Technology Agency as part of "Program for Creating STart-ups from Advanced Research and Technology" (START), and in 2018, the company was established as a joint-stock company.
• Dots for — Dots for is a technology that aims to improve the lives of rural residents by providing them with digital services.

Portfolio highlights

• Synflux — Synflux is a fashion lab comprising of fashion designers, software engineers & architects focused on fashion industry.
• AGRI SMILE — AGRI SMILE is a platform that focuses on sharing agricultural technology.
• Another works — Another works is a internet platform & the industry's first service that allows you to directly approach the talent you are interested in from a database of a variety of ready-to-work and multi-tasking personnel. You can also use the performance fee for free.

Portfolio highlights

• Revorf — Revorf analyzes data and develops AI-related to infectious diseases and healthcare.
• abillion — Find tips for plant-based food & products near you. Join the community to share reviews of restaurants & brands. Raise funds & drive sustainability!
• RIMM Sustainability — RIMM Sustainability provides a SaaS platform that enables companies of all sizes to optimise their sustainability management effort. It builds tools for sustainability management, reporting and optimisation.

Portfolio highlights

• Villio — Villio provides talent experience SaaS which helps companies with human resource development and recruitment of talented engineers.
• HarvestX — HarvestX manufactures fully automatic robots which contributes to the shortage of agricultural human resources and stable food production
• SPeak Corporation — SPeak Corporation operates JPort Match that is involved in direct recruiting service. It is a global career platform for budding new talents.

Portfolio highlights

• Tokyo — Tokyo provides consistently-designed signage and projector installation, as well as maintenance company support. All customers need is “product selection” considering installation. This is a service that does not take time and effort!
• Aidemy — Aidemy is a web service where you can learn AI programming online.
• GIRASOL ENERGY — Girasol Energy is an IoT Platform provides innovative PLC technologies that enable wiser PV Plants.

Portfolio highlights

• umitron — Umitron is a data company for aquaculture. We support fish farmers to increase productivity through data analytics. One of the biggest challenges in aquaculture is increasing feeding cost. We optimize feed amount and timing by using fish behavior analytics and water quality data. Our goal is to "install Sustainable Aquaculture on Earth".
• nanoFreaks — nanoFreaks builds a rescue system on the sea, creating an environment where everyone can live with peace of mind.
• Bankers Holding — Bankers Holding controls the bankers group companies that provide financial services via internet.

Portfolio highlights

• LIFT99 — LIFT99 is a coworking hub and network of startup founders in Tallinn, Estonia, and Kyiv, Ukraine. In 2018, we launched our Skillsharing Platform for founders around the world.
• Smartround — Smartround is a specialized finance management platform for startups and their investors. For start-ups, for entrepreneurs who are not familiar with finance, simply enter the necessary information according to the guide, prepare appropriate financing round, and prepare a function that can simulate and execute a capital increase. Support informationsharing and communication with shareholders even after the capital increase.
• AnotherBall — AnotherBall = Digital + Entertainment + Token economy

Portfolio highlights

• Now Do — Now Do provides online growth revolution platform.
• RE — RE specializes in smartphone application design and development.
• Vitalogue Health — Vitalogue Health offers Canvas, a home-based hormone testing service for women.

Portfolio highlights

• MI-6 — MI-6 is a research, development, consulting, and project management for material development using IT. We will promote materials informatics in the field of material development with our technological capabilities and a wealth of project knowledge that challenge the world's most advanced technologies .
• ELESTYLE — ELESTYLE are promoting mobile payments and providing high value-added services for users to realize a cashless society.
• Luup — Luup is an Internet Company.

Portfolio highlights

• RABO — RABO is a Cat-Tech Company that "watches cat life with technology.
• nanoFreaks — nanoFreaks builds a rescue system on the sea, creating an environment where everyone can live with peace of mind.

Portfolio highlights

• Ecbo cloak — Ecbo cloak is a sharing service that connects "persons who want to store luggage with shops with space to store luggage. Instead of coin lockers, you can pre-order places online online and store your luggage in the open space of stores of various types of business.

Portfolio highlights

• Mepple — Mepple is planning, developing, and operating internet services.
• Parame — Parame provides human resources, staffing and recruiting services.
• FABRIC TOKYO — FABRIC TOKYO is a Japanese startup provides a direct-to-consumer custom-made apparel brand. (former-company name Lifestyle Design Co., Ltd.). It enables customers to save their sizes, idea fabrics, and favorite designs, allowing them to make their original clothing later.FABRIC TOKYO was founded in 2012 by Yuichiro Mori and is based in Tokyo,Japan.