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Top 15 Big Data Angel Investors in Japan in May 2026

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 May 2026

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

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Investor list
Kotaro Chiba
Angel · Tokyo, Tokyo, Japan

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

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Investment focus

  • Content, Information Technology, Travel
  • 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.
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Kotaro Chiba
Angel · Tokyo, Tokyo, Japan

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

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Investment focus

  • Internet, Drones, Travel
  • 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.
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Takaya Shinozuka
Angel · Tokyo, Tokyo, Japan

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

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Investment focus

  • Internet, Local, Sports
  • 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.
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Kensuke Furukawa
Angel · Tokyo, Tokyo, Japan

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".

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Investment focus

  • Content, SNS, Software
  • Seed, Funding Round, Angel
  • Japan

Portfolio highlights

  • iiba — Iiba is a geospatial platform that specializes in providing location information related to child-rearing.
  • Plott — Plott producing youtube animation platform under Vision “Become a Content holder from YouTube”. In August 2019, the company name was changed from Fabo to Plott. Plott, the new company name, is derived from the plot that you make before writing novels, etc., and the idea that “I want to make content all the time” is put in the company name.
  • Neighbor — Neighbor is a metaverse game developer that specializes in Fortnite.
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Kento Hayashi
Angel · Tokyo, Tokyo, Japan

Kento Hayashi - President & CEO @ Datasection

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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.
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Hiroshi Tomishima
Angel

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

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Investment focus

  • Big Data, Internet, E-Commerce
  • 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.
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Kiyoshi Nishikawa
Angel · Tokyo, Tokyo, Japan

After working at KDD Corporation (Currently known as KDDI Corporation), 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 world’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 “Shibuya Bit Valley Concept” and is well known for his various speeches and writings. He is a graduate of the Department of Education at Tokyo University.

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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 one of the few companies in the world proposing to aid in the removal of orbital debris through the provision of End of Life (EOL) and Active Debris Removal (ADR) services. In addition to providing a technical solution, Astroscale is helping to define the business case for this service and are working with national space agencies,international institutions, non-profit organizations, insurance companies and satellite operators to develop norms, regulations and incentives that contribute to the responsible use of space.
  • TECHFUND — TechFund is a venture capital firm specializing in incubation and seed stage investments. The company is headquartered in Tokyo, Japan.
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Jo Hirao
Angel

Jo Hirao

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Investment focus

  • Retail, Medical, Big Data
  • 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 — A Private & Secure, Continual learning network, exclusively for doctors.
  • 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.
Show all investments...

Yusaku Maezawa
Angel · Mihama, Kyoto, Japan

Yusaku Maezawa is a Founder of Zozotown.

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Investment focus

  • Gaming, Social, Big Data
  • 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.
  • 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.
  • Space Aviation — Space Aviation is an aerospace company that offers air taxi services, flight training, aircraft sales, and heliport development solutions.
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Shunsuke Ikegami
Angel · Tokyo, Tokyo, Japan

Shunsuke Ikegami is an angel investor.

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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.
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Keisuke Tomimatsu
Angel · Tokyo, Tokyo, Japan

Keisuke Tomimatsu - Member of the board @ Musashi Seimitsu Industry

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Investment focus

  • CRM, Big Data, Analytics
  • Angel
  • Japan

Portfolio highlights

  • ABEJA — ABEJA develops AI business solutions utilizing deep learning.
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Hiroshi Sawa
Angel

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.

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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.
Show all investments...

Yasumasa Manabe
Angel · Tokushima, Tokushima, Japan

Yasumasa Manabe

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Investment focus

  • Information Technology, Drones, EdTech
  • 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.
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Shuichi Takenaga
Angel · Tokyo, Tokyo, Japan

Takenaga Shuuichi is an individual investor.

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Investment focus

  • Marketing, Financial Services, Management Consulting
  • 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.
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Takeshi Hirano
Angel

Takeshi Hirano - Auditor (External) @ Morpho

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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.
Show all investments...
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