# Top 35 Sustainability Angel Investors in Japan in June 2026 ## Shintaro Tabata - Type: Angel - Location: Tokyo, Tokyo, Japan - Relevant deals: 2 - Stages: Seed, Angel, Series A - Focus: Sharing Economy, Audio, Content Shintaro Tabata - Senior Vice President and Head of Corporate Sales @ Line ## Daisaku Harada - Type: Angel - Location: Tokyo, Tokyo, Japan - Relevant deals: 2 - Stages: Seed, Pre-Seed - Focus: Finance, Tourism, Automotive Daisaku Harada is the Director of Management Strategy at Mercari. Daisaku attended Chuo University. ## Naruhisa Nakagawa - Type: Angel - Relevant deals: 2 - Stages: Seed, Series A - Focus: Manufacturing, Beauty, Drones Naruhisa Nakagawa is a Founder & Chief Investment Officer at Caygan Capital. ## Sotaro Karasawa - Type: Angel - Location: Tokyo, Tokyo, Japan - Relevant deals: 1 - Stages: Seed, Pre-Seed, Series B - Focus: Software, Blockchain, Art Sotaro Karasawa - Chief Technology Officer @ STAR FESTIVAL ## Shintaro Yamada - Type: Angel - Location: Tokyo, Tokyo, Japan - Relevant deals: 1 - Stages: Seed, Angel - Focus: Internet, Finance, Content 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. ## Shinji Senba - Type: Angel - Relevant deals: 1 - Stages: Seed - Focus: Social, E-Commerce, Sustainability Shinji Senba is a Director of Green Innovations Holdings. ## Suzuki Yuto - Type: Angel - Location: Tokyo, Tokyo, Japan - Relevant deals: 1 - Stages: Seed, Series A - Focus: SaaS, Social, Content Suzuki Yuto ## Taizo Son - Type: Angel - Relevant deals: 1 - Stages: Seed, Series A - Focus: Financial Services, Information Technology, Water Taizo Son is the Co-Founder of VIVITA. Taizo Son attended the University of Tokyo. ## Seio Nagami - Type: Angel - Location: Tokyo, Tokyo, Japan - Relevant deals: 1 - Stages: Seed, Series A, Angel - Focus: Task Management, SaaS, Legal Seio Nagami ## Yoshihiro Yamauchi - Type: Angel - Relevant deals: 1 - Stages: Seed - Focus: Social, E-Commerce, Sustainability Yoshihiro Yamauchi is a individual investor. ## Cheng Tao - Type: Angel - Location: Tokyo, Tokyo, Japan - Relevant deals: 1 - Stages: Seed, Angel, Series A - Focus: Telecommunications, Content, Internet Tao Cheng currently works as Chief Executive Officer and Founder of popIn. ## Takuma Iwasa - Type: Angel - Relevant deals: 1 - Stages: Seed - Focus: Water, Beauty, IT Management Takuma Iwasa is a Founder & CEO at Cerevo. ## Tomoya Hirota - Type: Angel - Location: Tokyo, Tokyo, Japan - Relevant deals: 1 - Stages: Seed - Focus: Apps, Rental, Sharing Economy Tomoya Hirota - Director @ CLASS, Inc. ## Aso Kaname - Type: Angel - Location: Setagaya, Tokyo, Japan - Relevant deals: 1 - Stages: Seed - Focus: Organic, Residential, Waste Management Aso Kaname ## Ogawa Ryo - Type: Angel - Relevant deals: 1 - Stages: Seed - Focus: Apps, Social, Finance Ogawa Ryo - CEO @ Timee ## Toyokazu Ichise - Type: Angel - Relevant deals: 1 - Stages: Seed - Focus: Social, E-Commerce, Sustainability Toyokazu Ichise is a Director of Peace Communication Foundation. ## Shoji Miyata - Type: Angel - Location: Tokyo, Tokyo, Japan - Relevant deals: 1 - Stages: Seed - Focus: Travel, Software, Transportation Shoji Miyata is the CEO of SmartHR. ## Kei Tanaka - Type: Angel - Relevant deals: 1 - Stages: Angel, Series A, Series D - Focus: Beauty, Energy, Cosmetics Kei Tanaka is the Individual investor/Former Co-Head of Asset Management at Goldman Sachs Securities Co., Ltd. ## Mamoru Taniya - Type: Angel - Location: Hong Kong, Hong Kong Island, Hong Kong - Relevant deals: 1 - Stages: Seed, Series A - Focus: Apps, Content, FinTech 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. ## Mr Maru - Type: Angel - Relevant deals: 1 - Stages: Seed - Focus: Organic, Residential, Waste Management Mr. Maru ## Shunsuke Masaki - Type: Angel - Relevant deals: 1 - Stages: Seed - Focus: Social, E-Commerce, Sustainability 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. ## Kotaro Chiba - Type: Angel - Location: Tokyo, Tokyo, Japan - Relevant deals: 1 - Stages: Seed, Series A - Focus: Internet, Drones, Travel Kotaro Chiba is the founder of ChibaDojo Fund. Kotaro Chiba attended Keio University. ## Naoki Aoyagi - Type: Angel - Location: San Francisco, California, United States - Relevant deals: 1 - Stages: Seed, Angel, Series A - Focus: Fashion, Internet, Software 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. ## Taiga Matsuyama - Type: Angel - Location: Tokyo, Tokyo, Japan - Relevant deals: 1 - Stages: Seed, Angel, Series A - Focus: Software, Internet, Analytics 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. ## Osamu Ogasawara - Type: Angel - Location: Tokyo, Tokyo, Japan - Relevant deals: 1 - Stages: Angel - Focus: SNS, Content, Fashion Osamu Ogasahara is the founder, CEO, and president of FGN ABBA Lab. ## Yusaku Maezawa - Type: Angel - Location: Mihama, Kyoto, Japan - Relevant deals: 1 - Stages: Seed, Series C - Focus: Gaming, Social, Big Data Yusaku Maezawa is a Founder of Zozotown. ## Tetsuya Nagashima - Type: Angel - Relevant deals: 1 - Stages: Seed - Focus: Social, E-Commerce, Sustainability Tetsuya Nagashima - Director COO @ Gunosy ## Yoshitsune Ido - Type: Angel - Location: Tokyo, Tokyo, Japan - Relevant deals: 1 - Stages: Seed, Pre-Seed, Series A - Focus: Information Technology, Robotics, Software Yoshitsune Ido ## Toshihiro Inoki - Type: Angel - Location: Osaka, Osaka, Japan - Relevant deals: 1 - Stages: Angel - Focus: SNS, Content, Fashion 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. ## Soichiro Kawai - Type: Angel - Location: Tokyo, Tokyo, Japan - Relevant deals: 1 - Stages: Seed, Angel - Focus: Internet, Mobile Apps, Human Resources Soichiro Kawai - CEO @ ReBoost ## Matsuoka Tsuyoshi - Type: Angel - Location: Tokyo, Tokyo, Japan - Relevant deals: 1 - Stages: Seed - Focus: Water, Banking, Analytics Matsuoka Tsuyoshi - Executive Officer @ Goodpatch ## Hiromi Watase - Type: Angel - Relevant deals: 1 - Stages: Seed - Focus: Apps, Rental, E-Commerce Hiromi Watase ## Yu Akasaka - Type: Angel - Location: Tokyo, Tokyo, Japan - Relevant deals: 1 - Stages: Seed, Angel - Focus: Content, Food and Beverage, Apps 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. ## Shunsuke Ikegami - Type: Angel - Location: Tokyo, Tokyo, Japan - Relevant deals: 1 - Stages: Seed - Focus: Social, Cooking, Big Data Shunsuke Ikegami is an angel investor. ## Yoshinori Fukushima - Type: Angel - Location: Tokyo, Tokyo, Japan - Relevant deals: 1 - Stages: Seed, Angel, Series A - Focus: Internet, Software, Marketing Yoshinori Fukushima - CEO @ LayerX # About Shizune Shizune.co is an investor database. Core features: - 48,091 startup investors (angels, VCs, accelerators, and others) - Email, phone, LinkedIn (for intros), socials, and other contact data - Updated daily from public funding news - CSV and Excel export The User can access the full database FOR FREE after signing up: shizune.co