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Top 15 Big Data Angel Investors in Japan in September 2025

Last updated: Sep 2025 A list of 15 angel investors that invest in Big data startups based in Japan. We rank investors based on the number of investments they made in Big data companies from Japan. We update this investor list every month.

Top 15 Big Data Angel Investors in Japan in September 2025

Investor	Big Data Japan investments
Takaya Shinozuka	2
Kotaro Chiba	2
Kotaro Chiba	2
Keisuke Tomimatsu	1
Kensuke Furukawa	1
Hiroshi Sawa	1
Yasumasa Manabe	1
Shuichi Takenaga	1
Kento Hayashi	1
Hiroshi Tomishima	1
Kiyoshi Nishikawa	1
Jo Hirao	1
Yusaku Maezawa	1
Takeshi Hirano	1
Uenoyama Katsuya	1

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Investor list

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.

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.

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.

Keisuke Tomimatsu - Member of the board @ Musashi Seimitsu Industry

Investment focus

CRM, Big Data, Analytics
Angel
Japan

Portfolio highlights

ABEJA — ABEJA develops AI business solutions utilizing deep learning.

Kensuke Furukawa was born in June 2, 1981. He graduated Waseda University majoring Political Science and Economics, and in 2000, he launched "Milkcafe", a student community, which has grown to a site with 10 million PV per month. In 2004, he became the CEO of Media Clip, which operates a rental bulletin board service "ShitarabaBBS". After that year, he had transfer "Shitaraba BBS" to Livedoor, and took charge of starting up the Consumer Generated Media sector. In 2006, he joined Recruit, and took charge of starting up a new business at Business development sector. In June of 2009, he left Recruit, and became the CEO of nanapi （formerly Rocket Start), which operates the How-to Site "nanapi".

Investment focus

Content, Social Media, Media and Entertainment
Seed, Funding Round, Angel
Japan

Portfolio highlights

iiba — Iiba is a geospatial platform that specializes in providing location information related to child-rearing.
Tohakusha — Tohakusha is a creative agency that offers design, production and sale of digital content and EC websites, and content creation services.
Neighbor — Neighbor is a metaverse game developer that specializes in Fortnite.

Joined Fujitsu Limited in 1991, after working at Osaka City University's Faculty of Science. He has a wide range of business experience, from programming to new business development, such as developing Internet services. After that, engaged in IT-related new business development at Sojitz Corporation, and at a major business investmentcompany, engaged in business investment in venture companies, creation of business plans for companies, launching new services, and M & A. In 2008, he became an outside director of eLicense Corporation. In 2009, he was appointed Representative Director of Data Section Co., Ltd. after developing a trend analysis service utilizing big data. Listed on the Tokyo Stock Exchange Mothers on December 24, 2014. Outside director of Japan Data Exchange, Inc. Currently, he is an outside director of Solid Intelligence Co., Ltd. In June 2018, he became chairman.

Investment focus

Social, Big Data, Analytics
Funding Round
Japan

Portfolio highlights

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.

Yasumasa Manabe

Investment focus

Information Technology, Cloud Computing, Consumer Electronics
Seed, Series A, Funding Round
Japan

Portfolio highlights

For you — For you is a comprehensive Advertising agency business specializing in SNS.
MoonJapan — MoonJapan is an educational impact startup that offers a variety of programs and thorough assistance.
Metro Weather — Metroweather is a venture from Kyoto University that develops a high-performance Doppler lidar that measures the direction and speed of wind several tens of kilometers away from minute movements of fine particles in the atmosphere. We aim to contribute to the safety of the sky by completing a three-dimensional wind map, which has never beenrealized,based on years of research at the Kyoto University Research Institute for Sustainable Areas.

Takenaga Shuuichi is an individual investor.

Investment focus

Information Technology, Management Consulting, Marketing
Seed, Angel, Funding Round
Japan

Portfolio highlights

Morght — Morght is an information technology service company.
Tagpic — Tagpic offers influencer marketing targeting services such as influencer casting, SNS branding, and talent production.
H&H Group Japan — H&H Holdingsis a Professional Services company.

Kento Hayashi - President & CEO @ Datasection

Investment focus

Social, Big Data, Analytics
Series A, Funding Round
Japan

Portfolio highlights

Fabeee — "Fabeee" meant to support customers with the challenge of new manufacturing and with all efforts. The line between offline and online is no longer there, and manufacturing is about to change. We will fundamentally change the definition of manufacturing and support customers from various angles.
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.

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.

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.