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Top 25 Machine Learning Angel Investors in Japan in April 2025

Last updated: Apr 2025 A list of 25 angel investors that invest in Machine learning startups based in Japan. We rank investors based on the number of investments they made in Machine learning companies from Japan. We update this investor list every month.

Top 25 Machine Learning Angel Investors in Japan in April 2025

Investor	Machine Learning Japan investments
Takaya Shinozuka	2
Mamoru Taniya	2
Kazuhiro Ishikura	2
Eric Di Benedetto	1
Tomohito Ebine	1
Hiroki Nakamura	1
Nobuhiro Ariyasu	1
Uenoyama Katsuya	1
Kensuke Murashima	1
Hiroshi Tomishima	1
Jo Hirao	1
Takeshi Hirano	1
Yusaku Maezawa	1
Keisuke Tomimatsu	1
Kotaro Chiba	1
Yusuke Sato	1
Kazuhiro Aoyagi	1
Kotaro Chiba	1
Shinji Kimura	1
Ayataro Nakagawa	1
Kiyoshi Nishikawa	1
Bart Joseph Broadman	1
Hidetoshi Takano	1
Yutaka Matsuo	1
Shogo Kawada	1

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Takaya Shinozuka is the President, CEO, and Founder at Reiwa Travel.

Investment focus

Internet, Local, Advertising
Seed, Angel, Series A
Japan

Portfolio highlights

Now Do — Now Do provides online growth revolution platform.
KAUCHE — X Asia creates enjoyable shopping experience.
Luup — Luup is an Internet Company.

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.

Kazuhiro Ishikura served as the head of the Akatsuki Business Management Department in 2013 and as a corporate auditor of Akatsuki in 2014, contributing to the company's listing on the TSE Mothers and TSE 1st sections. Appointed 3minute CFO in 2015, engaged in business start-up and organizational design, and succeeded in large-scale M & Adeal with Glee. After leaving the company, he became a WARC director in November 2018. Certified public accountant.

Investment focus

Beauty, Content, Fashion
Seed, Angel, Funding Round
Japan

Portfolio highlights

Neith — Neith is a apparel manufacturer, seller and a whoelseller of water absorbing bralette, lingerie and shorts for women.
WARC — WARC provides hands-on support for business management departments as well as mergers and acquisition advisory services.
Vitalogue Health — Vitalogue Health offers Canvas, a home-based hormone testing service for women.

Private investor at the crossroads of finance & technology: seed, private & public, hedge and other alternatives. Over 30 IPOs and M&A exits in excess of $13 billion in aggregate value...Professional investor in software start-ups for over 25 years, first as a VC, then as a professional angel investor. Specialties include technologyinnovation in financial services, AI and mobile services. Most recent primary focus: disruptive financial technologies with massive impact. Original investor in Lending Club - the world's largest P2P lending marketplace -, Clairmail, now Monitise - the world's leader in mobile banking and mobile money -, Signio, now PayPal - the world's leader in online and mobile payments -, Sentient Technologies - a company seeking to solve the world’s most complex problems through massively scaled artificial intelligence -, etc.Currently, investor in such companies as: Alpaca, Aromyx, Coursekey, Fuzzy, GoShare, GraphWear, Jyve, LeadCrunch, PeerIQ, QMerit, Sentient, Siftery...Please have your project referred and strongly supported by one of my LinkedIn network connections for consideration.

Investment focus

FinTech, Internet, Developer APIs
Seed, Series A, Funding Round
United States, Japan

Portfolio highlights

GoShare — Moving, hauling, and delivery help is just a tap away with GoShare's easy app. Get a truck or cargo van in less than an hour.
Alpaca — Alpaca API allows developers and businesses to build apps, embed investing, and trade algorithms
AlpacaJapan — Alpaca is a technology company developing financial system platforms powered by the collaboration of AI and people.

Tomohito Ebine is non-executive Director at Owls Co., Ltd.

Investment focus

Home Services, Information Technology, Consulting
Seed, Angel, Series A
Japan, United States

Portfolio highlights

Mign — Mign offers a generative AI-related SaaS solutions for the construction and real estate fields.
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.
CAREER BIJIN — Career bijin is a total support company.

After joining DENTSU, I initially produced only banner advertising, but it is expected to be active, and I will be able to work on a number of digital campaigns. In 2011, he became independent and founded PARTY with four members. Cannes Lions Young Competition, Japan's Cyber Division, 2nd place in the world. He has received more than 250advertising awards in Japan and abroad. Recent masterpieces include Lady Gaga's life-size hearing aids “GAGADOLL”, “UNIQLO / UT Picks”, “Suntory / Intensive Regain”, “TOYOTA / TOWN”, such as “Shizukita-” all digital campaigns. TOKYO FM Radio “Sawamoto Gonpachi will end soon.” Guest Personality.

Investment focus

Web Design, Software, Content
Seed, Series A
Japan

Portfolio highlights

Edoga — Edoga is a VR production and education company. Edoga offer services such as "VR training" and "off-site VR".
Collectest — Collectest specializes in integrating AI into trading card appraisal procedures that show current market pricing and verify authenticity.
STUDIO Japan — STUDIO is a development and operation of the next-generation design tool.

Nobuhiro Ariyasu is the CEO at Coach United.

Investment focus

Finance, Internet, Content
Seed, Angel, Funding Round
Japan, Singapore

Portfolio highlights

Mign — Mign offers a generative AI-related SaaS solutions for the construction and real estate fields.
PICK — PICK is a startup that provides a digital transformation platform for the real estate and construction industries.
Conoris Technologies — Conoris Technologies is a staffing agency that offers security check support services for companies.

Uenoyama Katsuya - CEO @ PKSHA Technology

Investment focus

Fashion, Software, Advertising
Seed, Angel, Corporate Round
Japan

Portfolio highlights

Babel — Babel is creating meaningful media for users and expanding globally.
AppBrew — AppBrew develops LIPS, a mobile application for users to share and read real reviews on cosmetics, nail care, personal care, hair care, and other related products of different brands. The company was founded in 2016 and is based in Tokyo, Japan.
Neural Pocket — Neural Pocket provides Smart City related services for commercial buildings and urban spaces utilizing AI enabled image recognition technology. The company focuses on business development and co-creation serve its clients. Other applications include solutions for digitalization of factories, warehouses, parking lots and retail stores.

Kensuke Murashima

Investment focus

Energy, Logistics, Marketing
Series B, Seed, Series C
Japan

Portfolio highlights

miibo — miibo is an AI construction platform that allows businesses to develop conversational AI bots for their products and websites.
X Mile — Corporate Site：https://www.xmile.co.jp/ Service Site：https://x-work.jp/
Enechain — enechain provides liquidity in Japan’s energy market by brokering OTC transactions of energy.

Hiroshi Tomishima is the President and Founder of Zkyuun Entertainment and an Executive Director at Mercari.

Investment focus

Internet, E-Commerce, Big Data
Seed, Funding Round, Series A
Japan, United States

Portfolio highlights

Hireroo — HireRoo is an online coding test service that checks the skills of engineers through programming tests. It provides problems that correspond to a wide range of levels, from new graduates to mid-career tech leads, engineering managers, and various occupations. They also provide coding test planning and execution services.
Anyplace — Find furnished accommodations to rent for a month or longer. Choose apartments catered for remote work with an equipped home office and high-speed internet.
space data — Space Data is based on an algorithm that allows the AI to recognize geospatial data from the Earth and easily assign another Earth in VR. The company is developing an algorithm to automatically generate another "Earth" in virtual space using 3DCG technology by making the AI understand the geospatial information of the Earth by learningthe vast amount of ground observation data available from satellites. They want to create an AI that can reconstruct the "world" in virtual space by learning all kinds of data from this world, such as traffic volume, pedestrian traffic, day and night, four seasons, temperature, plant distribution, and nighttime light intensity. Its goal is to build a future in which everyone has the ability to create their own world (universe) and shape their own destiny without regard for race, gender, appearance, or environment.

Jo Hirao

Investment focus

Retail, E-Commerce, College Recruiting
Series B, Seed, Series C
Japan, Indonesia, Singapore

Portfolio highlights

Ralali — Ralali.com, Pusat toko grosir online pertama di Indonesia, sebagai b2b wholesale marketplace platform yang menghubungkan supplier, distributor dengan retail.
Docquity — Exchange ideas with the best doctors in the region. Receive educational resources designed by well known and respected leaders. Attend virtual discussions
space data — Space Data is based on an algorithm that allows the AI to recognize geospatial data from the Earth and easily assign another Earth in VR. The company is developing an algorithm to automatically generate another "Earth" in virtual space using 3DCG technology by making the AI understand the geospatial information of the Earth by learningthe vast amount of ground observation data available from satellites. They want to create an AI that can reconstruct the "world" in virtual space by learning all kinds of data from this world, such as traffic volume, pedestrian traffic, day and night, four seasons, temperature, plant distribution, and nighttime light intensity. Its goal is to build a future in which everyone has the ability to create their own world (universe) and shape their own destiny without regard for race, gender, appearance, or environment.

Takeshi Hirano - Auditor (External) @ Morpho

Investment focus

Big Data, Aerospace, Machine Learning
Seed
Japan

Portfolio highlights

space data — Space Data is based on an algorithm that allows the AI to recognize geospatial data from the Earth and easily assign another Earth in VR. The company is developing an algorithm to automatically generate another "Earth" in virtual space using 3DCG technology by making the AI understand the geospatial information of the Earth by learningthe vast amount of ground observation data available from satellites. They want to create an AI that can reconstruct the "world" in virtual space by learning all kinds of data from this world, such as traffic volume, pedestrian traffic, day and night, four seasons, temperature, plant distribution, and nighttime light intensity. Its goal is to build a future in which everyone has the ability to create their own world (universe) and shape their own destiny without regard for race, gender, appearance, or environment.

Yusaku Maezawa is a Founder of Zozotown.

Investment focus

Gaming, Developer Tools, Artificial Intelligence
Seed, Series C
Japan, United States

Portfolio highlights

JOYCLE — JOYCLE is a waste management company that specializes in trash recycling, disposal, and environmental consulting services.
WEB3DEV — The biggest web3 developers community in Latin America is based on 3 pillars: Community, Education and Building. Community: We created mechanisms with incentives to engage a community of software developers to create exclusive and high quality content about web3 technologies. The community members help each other to enter the web3 space. Our community is organized in pods, each pod for a different theme or blockchain. Each pod has a leader, which helps that pod to evolve, promoting growth to the ecosystem and the whole web3dev community. We already have leaders for Ethereum, Cardano, Algorand and Solana. We incentivize those pods, creating bounties and paying individual contributors when they create new content and deliver value. Education: The education platform, created by the community, is the place where everybody effectively learns about blockchain technologies. The courses are didactic self-paced project based learning. We give NFT reward as certificates for students who finish the projects. Building: We find companies that need developers and match our talent community members with maker demands. We build developers team for web3 companies and help these teams to succeed.
space data — Space Data is based on an algorithm that allows the AI to recognize geospatial data from the Earth and easily assign another Earth in VR. The company is developing an algorithm to automatically generate another "Earth" in virtual space using 3DCG technology by making the AI understand the geospatial information of the Earth by learningthe vast amount of ground observation data available from satellites. They want to create an AI that can reconstruct the "world" in virtual space by learning all kinds of data from this world, such as traffic volume, pedestrian traffic, day and night, four seasons, temperature, plant distribution, and nighttime light intensity. Its goal is to build a future in which everyone has the ability to create their own world (universe) and shape their own destiny without regard for race, gender, appearance, or environment.

Keisuke Tomimatsu is the Co-Founder at ABEJA. Keisuke Tomimatsu attended Keio University.

Investment focus

CRM, Big Data, Analytics
Angel
Japan

Portfolio highlights

ABEJA — ABEJA develops AI business solutions utilizing deep learning.

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

Investment focus

Information Technology, 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.

Yusuke Sato is the Co-Representative and Co-Founder of Pulit.

Investment focus

Internet, Content, Food and Beverage
Seed, Funding Round, Angel
Japan, Indonesia, United States

Portfolio highlights

Kaimak — Kaymak is a recruitment platform that focuses on creating a recruitment website, planning a recruitment strategy, and managing candidates.
Paytner — yup is providing services to support freelance people's funding.The freelance population in Japan has been shown to continue to increase in many Chosa. While working styles are diversified, they are not able to respond to the development of the working environment, and they will develop their business to change the situation where problemssuch as funding, credit, sexual harassment, and power harassment are accumulated.
Meetscare — Meetscare provides correct information and supports the self-awareness of all people involved in care. The company provides a wealth of information to ensure optimal care and create a mechanism for the realization. Users can make a telephone consultation and web diagnosis and search for free information using the system.Meetscare was founded on2016 and is headquartered in Arakawa, Tokyo.

Kazuhiro Aoyagi is the Representative Director, CEO, and Founder of Ignition Point Japan. he is also an Outside Director of Synapse Japan.

Investment focus

Marketing, Task Management, Machine Learning
Angel
Japan

Portfolio highlights

Synapse Japan — Synapse is a working with academic partners to improve efficiency through AI.

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.

Shinji Kimura - Chairman/Founder @ AnyPay

Investment focus

FinTech, Financial Services, E-Commerce
Funding Round, Seed, Series B
United States, India, Japan

Portfolio highlights

POKKT — POKKT is an Alternate Mobile Payment Platform that helps owners of Paid Digital Goods and Services to monetise thier users through an advertiser-funded Model. Develpoers and Publishers of Digital content can significantly increase monetization and convert non-paying users into paying users.
Alpaca — Alpaca API allows developers and businesses to build apps, embed investing, and trade algorithms
AlpacaJapan — Alpaca is a technology company developing financial system platforms powered by the collaboration of AI and people.

2011 At university, participated in the founding period as a director of Atcole Co., Ltd., and started the web service experience.2012 Founded Peroli Co., Ltd., which operates a curation platform for women "MERY" .2014 Founded Peroli Co., Ltd. Sold to DeNA 2015 Jointly established Tokyo Founders Fund as an angel investor and startedinvesting in startups in Japan and overseas 2019 Appointed outside director of FIREBUG Co., Ltd.

Investment focus

Internet, Software, Content
Seed, Angel, Funding Round
Japan, Hong Kong, United States

Portfolio highlights

For you — For you is a comprehensive Advertising agency business specializing in SNS.
Meetscare — Meetscare provides correct information and supports the self-awareness of all people involved in care. The company provides a wealth of information to ensure optimal care and create a mechanism for the realization. Users can make a telephone consultation and web diagnosis and search for free information using the system.Meetscare was founded on2016 and is headquartered in Arakawa, Tokyo.
SPORTS CROWN — SPORTS CROWN engages in the development and operation of fantasy sports.

After working at KDD Corporation ï¼ˆCurrently known as KDDI Corporationï¼‰, Kiyoshi Nishikawa next went to work at Arthur D. Little Inc. in the United States, where he became inspired to start his own company. After returning to Japan, he established a Japanese corporation of the worldâ€™s largest Internet company, America On Line, LLC. Later andbased on this experience and the relationships he developed, he founded the first Internet business incubator, NETAGE, Inc. After serving as the President and CEO of NETAGE Group, he later became and still serves as the Chairman of ngi group, inc. Kiyoshi was one of the main entrepreneurs responsible for proposing and realization of â€œShibuya Bit Valley Conceptâ€ and is well known for his various speeches and writings. He is a graduate of the Department of Education at Tokyo University.

Investment focus

News, Social Media, Big Data
Seed, Funding Round, Pre-Seed
Japan, United States

Portfolio highlights

PoliPoli — PoliPoli is a next-generation politics co-creation platform where you can participate like a game. Politicians from all over Japan post their policies in an easy-to-understand manner, and those who sympathize can enjoy working on the "missions" necessary to realize the policies.
Astroscale — Astroscale is the first private company with a vision to secure the safe and sustainable development of space for the benefit of future generations, and the only company solely dedicated to on-orbit servicing across all orbits.
TECHFUND — TechFund is a venture capital firm specializing in incubation and seed stage investments. The company is headquartered in Tokyo, Japan.

Bart Joseph Broadman

Investment focus

Robotics, Machine Learning, Autonomous Vehicles
Series A
Japan

Portfolio highlights

Ascent Robotics — Ascent is a Tokyo-based AI and robotics company developing cutting-edge software with the goal of helping create a more autonomous future.

Joined Intelligence in 1999. Established Key Players Inc. in 2005. Consultation with more than 3,000 managers and career counseling for more than 10,000 individuals. In addition, we have invested in more than 55 outside directors, advisors and angels in Silicon Valley and Bangladesh in Japan. Over 100 lectures on careers, entrepreneurship andstartups.

Investment focus

Internet, Information Technology, Human Resources
Seed, Angel, Funding Round
Japan, United States

Portfolio highlights

Kaimak — Kaymak is a recruitment platform that focuses on creating a recruitment website, planning a recruitment strategy, and managing candidates.
D-Chain — D-Chain offers services related to IT development and production in the Web3 and Web2 fields.
Rayout — Rayout is a business consulting company that provides creative content development, recruitment videos, and web production services.

1997 Graduated from Tokyo University, Department of Electronic and Information Engineering. In 2002, he completed the doctoral program at the same graduate school. Ph.D. (Engineering) He was a researcher at the Institute of Industrial Science and Technology since the same year. After working as a visiting researcher at Stanford University in August2005, Associate Professor of Technology Management Strategy, Institute of Research, Graduate School of Engineering, University of Tokyo in 2007. Co-Representative, Associate Professor, Global Consumption Intelligence Donation Course, Department of Technology Management Strategy, Graduate School of Engineering, Tokyo University. Professor from 2019, Graduate School of Engineering, Tokyo University of Engineering, Department of Technology Management Strategy. He specializes in artificial intelligence, web mining, big data analytics. The Society of Artificial Intelligence received the Paper Award (2002), the 20th Anniversary Project Award (2006), the Field Innovation Award (2011), and the Merit Award (2013). At the Society of Artificial Intelligence, he has been a student editorial committee and an editorial committee, and vice chair/director since 2010. Chairman of Ethics from 2014 to 2018. Chairman of Japan Deep Learning Association since 2017.

Investment focus

Artificial Intelligence, Neuroscience, Machine Learning
Seed
Japan

Portfolio highlights

DeepX — DeepX is an AI startup company based in Tokyo that was founded in 2016 by graduates from the University of Tokyo, Japan’s leading institution of higher education. After three strong years of establishing ourselves, we continue to grow and are ready to make an impact on society through our work. Our core mission is to ‘automate any machinery’ andsupported by our successful projects, we believe that Deep Learning and its real-world implementations will bring an unprecedented breakthrough to solve current and future societal problems. A key challenge that Japan is currently facing is a super-aging society and a shrinking labor population leading to shortages. We develop software to automate machines ranging from small industrial robots to big heavy equipment. Our control models can achieve flexible operation for various environments and conditions using cutting-edge technology such as Deep Reinforcement Learning.
Mign — Mign offers a generative AI-related SaaS solutions for the construction and real estate fields.
MinD in a Device — MinD in a Device Co., Ltd. is a university-launched venture that aims to port human consciousness to devices (machines and computers) in the medium to long term based on long-term research results on consciousness. As the first step toward realization, we will evolve and deepen the "generation model" considered to be the source ofconsciousness, and promote the development of next-generation AI and social implementation.

Shogo Kawada is Co-founder and Adviser of DeNA, a global Internet company focused on a social games platform, social games, e-commerce and other Web services for mobile devices and PCs.

Investment focus

Software, SaaS, Media and Entertainment
Seed, Funding Round, Angel
Japan, United States

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.
Sunblaze — sunblaze is a android-based smartphone users begin to experience stability issues after one to two years of use. For example, their device may get slower or they encounter unexpected app crashes. These stability issues also lead to security vulnerabilities.SUNBLAZE OS features essential functions only, meaning it does not have any unnecessaryfunctions. This allows the system to be more stable and secure, and users are able to use it for a longer period of time.
Spider Labs — Spider Labs offers solutions to help fight ad fraud and ensure data security.

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