Get 250+ investors tailored to your startup

Invest in your industry and stage
Emails & contact info included
Excel and CSV export
Automatically

Trusted by 3,000+ startups

Top 35 Sustainability Angel Investors in Japan in January 2026

Last updated: Jan 2026 A list of 35 angel investors that invest in Sustainability startups based in Japan. We rank investors based on the number of investments they made in Sustainability companies from Japan. We update this investor list every month.

Top 35 Sustainability Angel Investors in Japan in January 2026

Investor	Sustainability Japan investments
Shintaro Tabata	2
Daisaku Harada	2
Naruhisa Nakagawa	2
Yoshinori Fukushima	1
Suzuki Tatsuya	1
Mamoru Taniya	1
Yuzuru Honda	1
Yoshihiro Yamauchi	1
Mr Maru	1
Toshihiro Inoki	1
Shoji Kodama	1
Shunsuke Masaki	1
Soichiro Kawai	1
Sotaro Karasawa	1
Kotaro Chiba	1
Naoki Aoyagi	1
Taiga Matsuyama	1
Cheng Tao	1
Takuma Iwasa	1
Matsuoka Tsuyoshi	1
Hiromi Watase	1
Kotaro Chiba	1
Shintaro Yamada	1
Shinji Senba	1
Suzuki Yuto	1
Taizo Son	1
Yu Akasaka	1
Shunsuke Ikegami	1
Seio Nagami	1
Osamu Ogasawara	1
Tomoya Hirota	1
Aso Kaname	1
Ogawa Ryo	1
Toyokazu Ichise	1
Katsunori Sago	1

Find investors that fund startups like yours. Automatically.

Our algorithm will find investors that invest in your industry, stage, and geography.

Investor list

Shintaro Tabata - Senior Vice President and Head of Corporate Sales @ Line

Investment focus

Sharing Economy, Audio, Content
Seed, Angel, Series A
Japan

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.

Daisaku Harada is the Director of Management Strategy at Mercari. Daisaku attended Chuo University.

Investment focus

Finance, Tourism, Automotive
Seed, Pre-Seed
Japan

Portfolio highlights

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

Naruhisa Nakagawa is a Founder & Chief Investment Officer at Caygan Capital.

Investment focus

Manufacturing, Beauty, Environmental Consulting
Seed, Series A
Japan, United States, United Kingdom

Portfolio highlights

Zeigo — Zeigo by Schneider Electric provides sustainability software for efficient carbon reduction and supply chain decarbonization, aiming for a carbon-free future.
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.

Yoshinori Fukushima - CEO @ LayerX

Investment focus

Internet, Marketing, Media and Entertainment
Seed, Angel, Series A
Japan, Singapore

Portfolio highlights

Now Do — Now Do provides online growth revolution platform.
Amptalk — Amptalk is a software development firm specializing in operating automatic transcription and analysis of online business negotiations.
PeopleX — PeopleX encourages and assists employees in their professional development.

1985. Graduated from the Faculty of Economics, Hitotsubashi University. In 2008, he engaged in new business support and venture support for large companies at Inspire Co., Ltd. In 2011, he was appointed director of UXConsulting company wacul. In 2012, he was appointed director of giftee.

Investment focus

Internet, Agriculture, Information Technology
Seed, Funding Round, Angel
Japan

Portfolio highlights

Pleap — Pleap is a medical engineering company specializing in the development of AI and IoT-based technology solutions tailored for medical institutions. The company's product offerings include "medimo" which is an AI tool that automatically creates medical record manuscripts from medical audio.
AGRI SMILE — AGRI SMILE is a platform that focuses on sharing agricultural technology.
Conoris Technologies — Conoris Technologies is a staffing agency that offers security check support services for companies.

After graduating from the Faculty of Law at the University of Tokyo, he joined Solomon Brothers, where he became the youngest managing director in Asia, where he was in charge of Asian investment. After that, he created one of the largest independent Asuka assets. He also launched Japan's first independent online life insurance company,LifeNet Life Insurance, and inspired Japan's first International.

Investment focus

Apps, Content, FinTech
Seed, Series A, Funding Round
Japan, Singapore, Spain

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.

Yuzuru Honda is a Founder & Global CEO of FreakOut.

Investment focus

Information Technology, SNS, Internet
Seed, Angel, Funding Round
Japan, Nigeria, Singapore

Portfolio highlights

IVA — IVA ensures the safety of the market towards the threat of counterfeit goods.
Tyms — Tyms online accounting software for your business connects you to your bank, accountant, bookkeeper, and other business apps. Start a free trial today. Also available in Nigeria, Ghana, Mauritius and South Africa.
ForCreators — ForCreators is a company operating the virtual talent agency ‘NEXAS', with the goal of globalizing Japan's world-class culture such as anime and VTubers.

Yoshihiro Yamauchi is a individual investor.

Investment focus

Social, E-Commerce, Sustainability
Seed
Japan

Portfolio highlights

Gab — Gab is a company that works to solve social problems as well as develops and markets ethical products.

Mr. Maru

Investment focus

Organic, Residential, Waste Management
Seed
Japan

Portfolio highlights

AlgaleX — AlgaleX is a firm that utilizes discarded food waste to create ingredients such as plant-based proteins.

Graduated from Keio University, Department of Political Science and Law. 1998 Registered as an attorney. 2004: Mitsui & Co., Ltd. was established. Participated as a partner. 2006 Lecturer, Department of Integrated Science and Technology, Tokyo University of Science. In 2011, Inoki Law Office was established. Currently Director, Creative CommonsJapan, Outside Director of SAKURA Internet, Representative Director of Cyberbond, Mercari External AuditorHe assumed the position of.

Investment focus

SNS, Content, Fashion
Angel, Funding Round
Japan

Portfolio highlights

CAMPFIRE — Campfire engages in the planning, development, and operation of a crowd funding platform.They operate the largest cloud funding platform in Japan [CAMPFIRE (campfire)], which supports "whoever wants to start something."The fee is 5% of the domestic level, and about 15,000 projects have collected about $70million in total from over700,000 people.

Shoji Kodama - President @ Laxus Technologies

Investment focus

Real Estate, Internet, Construction
Seed, Angel, Series B
Japan

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.

Mr. Masaki joined Mitsui Ventures in May 2008 as Venture Partner, and since has been focused on investments in retail and service sector. Previously, he worked at Fujita Corporation, a large operator of restaurants and retail chain, where he was responsible for store development and merchandising in Tokyo area. After several successfulyears at Fujita, he took a position with Service Business Division of Mitsui & Co., Ltd., in charge of developing new business utilizing the franchise method.

Investment focus

Social, E-Commerce, Sustainability
Seed
Japan

Portfolio highlights

Gab — Gab is a company that works to solve social problems as well as develops and markets ethical products.

Soichiro Kawai - CEO @ ReBoost

Investment focus

Media and Entertainment, Information Technology, Internet
Seed, Funding Round, Angel
Japan

Portfolio highlights

Villio — Villio provides talent experience SaaS which helps companies with human resource development and recruitment of talented engineers.
Back Dooor — Back Dooor is an app that provides 1on1 chatting services with favorite player of the users.
SPeak — SPeak Corporation operates JPort Match that is involved in direct recruiting service. It is a global career platform for budding new talents.

Sotaro Karasawa - Chief Technology Officer @ STAR FESTIVAL

Investment focus

Software, Blockchain, Art
Seed, Pre-Seed, Series B
Japan

Portfolio highlights

Taian — Taian, which specializes in bridal industry services and software. They also provide ''Concept Marry,'' which allows couples to design invites and seating charts that match their wedding theme, as well as display guest information on Oiwaii.
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.
Cloudbase — Cloudbase is an information technology company that specializes in the fields of cloud services and management.

Kotaro Chiba is the founder of ChibaDojo Fund. Kotaro Chiba attended Keio University.

Investment focus

Internet, Drones, Software
Seed, Funding Round, Series A
Japan, United States

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.

Naoki Aoyagi is a Senior Vice President at GREE, Inc. and Chief Executive Officer of GREE International, Inc. He joined GREE, Inc. in March 2006 from Deutsche Bank, where he had specialized in tech and media sector IPOs and M&A advisory work. At GREE, Aoyagi oversaw the Company's partnership with KDDI and its IPO before leading thedevelopment of GREE’s global operations, a role he continues today. Aoyagi earned a bachelor's degree in policy management from Keio University in 2002.

Investment focus

Internet, Fashion, Software
Seed, Angel, Series A
Japan

Portfolio highlights

Enechain — enechain provides liquidity in Japan’s energy market by brokering OTC transactions of energy.
Parallel — Parallel is the hangout app where you can enjoy games, videos, music, and more with friends.
Holmes — Holmesis a cloud contract system to consistently carry out the creation, conclusion and management of contracts in the cloud.

Taiga Matsuyama graduated form Waseda University, Matsuyama has been engaged in venture company support for more than ten years in Tokyo, after experience as a consultant at Accenture.Matsuyama became one of the board member of NetAge, Inc (IPO 2006), start-up incubator known by having invested in MIXI – Japanese top SNS and support severalstart-up companies.He also has contributed to the activity for create the start-up eco-system in Tokyo through the NPO Organization BVA (Bit Valley Association). Currently he has established Kronos Fund with angel investors, venture capital fund for investment in emerging early-stage companies.Kronos Fund has invested in more than 20 companies.

Investment focus

Software, Artificial Intelligence, Telecommunications
Seed, Angel, Series A
Japan, United States

Portfolio highlights

Shippo — Shippo is the best multi-carrier shipping software for e-commerce businesses. Find the best shipping rates, integrate with e-commerce platforms, print shipping labels, track package delivery, and verify addresses with either our shipping API or web app.
CAMPFIRE — Campfire engages in the planning, development, and operation of a crowd funding platform.They operate the largest cloud funding platform in Japan [CAMPFIRE (campfire)], which supports "whoever wants to start something."The fee is 5% of the domestic level, and about 15,000 projects have collected about $70million in total from over700,000 people.
Spectra Japan — Spectra is a Provision of services for artists and fans company.

Tao Cheng currently works as Chief Executive Officer and Founder of popIn.

Investment focus

Telecommunications, Content, Internet
Seed, Angel, Series A
Japan

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.

Takuma Iwasa is a Founder & CEO at Cerevo.

Investment focus

Water, Beauty, IT Management
Seed
Japan

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.

Matsuoka Tsuyoshi - Executive Officer @ Goodpatch

Investment focus

Water, Banking, Analytics
Seed, Funding Round
Japan, Singapore

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.

Hiromi Watase

Investment focus

Apps, Rental, E-Commerce
Seed, Funding Round
Japan

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.
TASKAJI — TASKAJI is an online housekeeping service that matches people looking for someone to do their housekeeping with those who want to work as housekeepers.The companies motto is of “from the nuclear family to the extended family” and it aims to provide people with more leisure time through its concept of “housekeeping sharing.

Kotaro Chiba is the founder of ChibaDojo Fund. Kotaro Chiba attended Keio University.

Investment focus

Information Technology, Content, Internet
Seed, Funding Round, Series A
Japan, United States

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.

During his years at Waseda University, Shintaro worked at Japan’s biggest e-commerce mall, Rakuten, Inc. On August 1st 2001, Shintaro established “Unoh Inc.” after graduating university. At Unoh he was responsible for designing and developing several web services, one of which was the online magazine subscription . Services provided by Unohinclude planning, development and management of the film enthusiast community site “Movie Life” (acquired by PIA Corporation) as well as “Sugu.CC” , “NeoAd” (both acquired by GMOAP) and the photo sharing site “Photozou” (acquired by Digital Garage).In 2009 Unoh entered into social gaming, creating multiple successful social games. Among these games, “Machitsuku!” has been its biggest hit with over 5 million users. On August 3rd 2010, Unoh joined Zynga and Shintaro became General Manager of Zynga Japan. He resigned on January 2012. After traveling around the world, He established the new company “Mercari, Inc.” on February 2013 and released the resale shopping app “Mercari” on July 2013 in Japan.He is a true Internet geek, spending a lot of time on the Internet and boasts around 180,000 followers on Twitter.

Investment focus

Internet, Finance, Artificial Intelligence
Seed, Angel, Funding Round
Japan, United States, Kenya

Portfolio highlights

AssetHub — AssetHub is an AI-powered 3D modeling tool that enables game developers to create and edit 3D assets 100 times faster, enabling mass production of content and combining AI with manual work, enabling faster prototyping and editing.
Peach Cars — Buy or sell your car in Nairobi-Kenya with ease. Browse a wide range of vehicles, connect with trusted sellers, and find the perfect car today. Simple, fast, and secure transactions.
AnotherBall — AnotherBall is a blockchain startup that combines entertainment and blockchain.

Shinji Senba is a Director of Green Innovations Holdings.

Investment focus

Social, E-Commerce, Sustainability
Seed
Japan

Portfolio highlights

Gab — Gab is a company that works to solve social problems as well as develops and markets ethical products.

Suzuki Yuto

Investment focus

SaaS, Social, Content
Seed, Series A, Funding Round
Japan

Portfolio highlights

Gab — Gab is a company that works to solve social problems as well as develops and markets ethical products.
Aidemy — Aidemy is a web service where you can learn AI programming online.
Bizibl Technologies — Bizibl Technologies provides SaaS services for recruitment events.

Taizo Son is the Co-Founder of VIVITA. Taizo Son attended the University of Tokyo.

Investment focus

Financial Services, Information Technology, Water
Seed, Series A, Funding Round
Japan, United States, Singapore

Portfolio highlights

Favolist5 — Favolist5 is a software company that develops an abbreviated voice SNS based on web3 for personal media.
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 is a blockchain startup that combines entertainment and blockchain.

During Hosei University student, and intern at Hakuhodo C & D. After joining the Image-net, I do media monetization of EC site as a media planner. Then, new business, engaged in Alliance. Launched a crowdsourcing site "MILLION DESIGNS" of design in the individual, sold to Ransazu Corporation. Established the Eureka Co., Ltd., wasappointed Representative Director CEO.

Investment focus

Food and Beverage, Content, Internet
Seed, Angel, Funding Round
Japan, Australia, Hong Kong

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.

Shunsuke Ikegami is an angel investor.

Investment focus

Social, Cooking, Big Data
Seed, Funding Round
Japan

Portfolio highlights

CoCooking — CoCooking uses food and cooking to create ample opportunity for dialogue and thought, fostering creativity, diversity, and well-being of individuals and communities.
Datasection — Datasection is a social big data company that provides various big data analysis tools for its clients. It specializes in marketing research, data provision and processing, image analysis, overseas SNS, and data utilization and optimization. Datasection was founded in 2000.

Seio Nagami

Investment focus

Task Management, SaaS, Information Technology
Seed, Series A, Angel
Japan

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.

Osamu Ogasahara is the founder, CEO, and president of FGN ABBA Lab.

Investment focus

SNS, Content, Fashion
Angel, Funding Round
Japan

Portfolio highlights

CAMPFIRE — Campfire engages in the planning, development, and operation of a crowd funding platform.They operate the largest cloud funding platform in Japan [CAMPFIRE (campfire)], which supports "whoever wants to start something."The fee is 5% of the domestic level, and about 15,000 projects have collected about $70million in total from over700,000 people.

Tomoya Hirota - Director @ CLASS, Inc.

Investment focus

Apps, Rental, Sharing Economy
Seed
Japan

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.

Aso Kaname

Investment focus

Organic, Residential, Waste Management
Seed
Japan

Portfolio highlights

AlgaleX — AlgaleX is a firm that utilizes discarded food waste to create ingredients such as plant-based proteins.

Ogawa Ryo - CEO @ Timee

Investment focus

Apps, Social, Finance
Seed
Japan

Portfolio highlights

LivCo — LivCo is a support service company that offers HR, life support, real estate rental brokerage, and media platform solutions for foreigners.
Gab — Gab is a company that works to solve social problems as well as develops and markets ethical products.
Givearth — Givearth app enable users to make donations just by carrying out their daily shopping and consumption activities.

Toyokazu Ichise is a Director of Peace Communication Foundation.

Investment focus

Social, E-Commerce, Sustainability
Seed
Japan

Portfolio highlights

Gab — Gab is a company that works to solve social problems as well as develops and markets ethical products.

Katsunori Sago

Investment focus

Sustainability, Robotics, Aerospace
Seed, Series C
Japan, Hong Kong

Portfolio highlights

Kollektion — KLKTN is a curated music, manga and art NFT platform connecting creators with fans through special experiences. The platform allows fans to access special edition digital art and behind-the-scenes moments of artists' creative process. In collaboration with top creators and artists and powered by blockchain technology, KLKTN is takingartist-fan engagement and the best of creative experiential culture into the digital world. Artworks are available as a limited supply of authenticated digital products or NFTs, for purchase via credit card, with a fixed cost per item. KLKTN's co-founders are Jeff Miyahara, Chief Creative Officer and a renowned record producer and songwriter who has produced over 260 international artists; Fabiano Soriani, Chief Technology Officer and former lead blockchain engineer for Dapper Labs; and Daisuke Iwase, Chief Executive Officer, Harvard Business School graduate, former World Economic Forum Young Global Leader, and a digital pioneer known for co-founding Lifenet, a disruptive fintech venture, which he took to IPO. Built on the Flow blockchain to achieve affordable and environmentally-sustainable minting, KLKTN leaves more for artists, fans, and the planet.
Sustech — Sustech is a technology company that develops platforms for decarbonization support and distributed power generation services.
Ispace Technologies — ispace is a private lunar robotic exploration company that is developing micro-robotic technology to provide a low-cost and frequent transportation service to and on the Moon, conduct lunar surface exploration to map, process and deliver resources to our customers in cislunar space.

Investors by industry

Community

Artificial intelligence