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Top 15 Big Data Angel Investors in Japan (August 2026)

The most active angel investors investing in Japan Big Data startups. This investor list is updated monthly from the Shizune investor database, ranked by number of investments in Japan Big Data startup companies. Find investors to raise a Seed, Series A or Angel round with Shizune.
Investor Relevant Deals Geography Stage Focus Round Size
Kotaro Chiba
Angel
2 Japan, United States Seed, Series A Travel, Internet, Apps $700k–$213M
Takaya Shinozuka
Angel
2 Japan Seed, Angel, Series A E-Commerce, Local, Content $3.3M–$9M
Yusaku Maezawa
Angel
1 Japan, United States Seed, Series C, Series A Aerospace, Blockchain, Cryptocurrency $500k–$15M
Yasumasa Manabe
Angel
1 Japan Seed, Series A, Angel Information Technology, Drones, EdTech $194k–$30M
Uenoyama Katsuya
Angel
1 Japan Seed, Angel, Corporate Round Fashion, Software, Advertising
Shunsuke Ikegami
Angel
1 Japan Seed Social, Cooking, Big Data
Keisuke Tomimatsu
Angel
1 Japan Angel CRM, Big Data, Analytics
Kensuke Furukawa
Angel
1 Japan Seed, Angel Content, SNS, Internet $690k–$33M
Hiroshi Tomishima
Angel
1 Japan, United States Seed, Series A Big Data, Internet, E-Commerce $330k–$11M
Takeshi Hirano
Angel
1 Japan Seed Big Data, Aerospace, Machine Learning
Jo Hirao
Angel
1 Japan, Indonesia, Singapore Series B, Seed, Series C Retail, Medical, Big Data $6.5M–$11M
Shuichi Takenaga
Angel
1 Japan Seed, Angel Marketing, Financial Services, Management Consulting $1.2M–$62M
Nobuhiro Ariyasu
Angel
1 Japan, Singapore Seed, Angel, Series A Finance, Content, Internet
Kento Hayashi
Angel
1 Japan Series A Social, Big Data, Analytics
Hiroshi Sawa
Angel
1 Japan Social, Big Data, Analytics
Access all 21 angel investors in Japan Big Data startups.

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Investor list

Kotaro Chiba
Angel · Tokyo, Tokyo, Japan · 2 investments in Japan Big Data startups

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

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Investment focus

  • Industry: Travel, Internet, Apps
  • Stage:Seed, Series A
  • Geography: Japan, United States

Investor stats

  • Total investments: 65
  • Round size: Seed $700k–$41M; Series A $13M–$213M
  • Lead/follow: 3% lead, 97% follow

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 Japan's #1 e-scooter and e-bike sharing service provider. Luup currently operates in Tokyo, Osaka, Kyoto, and Yokohama, while planning to expand to other cities all over Japan. The service is based on a high-density port network, where anyone can rent and return to their original fleets.
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Takaya Shinozuka
Angel · Tokyo, Tokyo, Japan · 2 investments in Japan Big Data startups

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

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Investment focus

  • Industry: E-Commerce, Local, Content
  • Stage:Seed, Angel, Series A
  • Geography: Japan

Investor stats

  • Total investments: 7
  • Round size: Seed $3.3M–$9M
  • Lead/follow: 29% lead, 71% follow

Portfolio highlights

  • KAUCHE — KAUCHE is a discovery-based e-commerce model where friends and family can “discover” and purchase daily sale items together. They provide services for online retail shops. KAUCHE is committed in creating an exciting shopping experience for both customers and partners who want to sell products.
  • Now Do — Now Do provides online growth revolution platform.
  • KAUCHE — X Asia creates enjoyable shopping experience.
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Yusaku Maezawa
Angel · Mihama, Kyoto, Japan · 1 investments in Japan Big Data startups

Yusaku Maezawa is based out of Tokyo and is the Art Collector Entrepreneur and Founder of Zozotown. Yusaku Maezawa attended Waseda Jitsugyo High School.

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Investment focus

  • Industry: Aerospace, Blockchain, Cryptocurrency
  • Stage:Seed, Series C, Series A
  • Geography: Japan, United States

Investor stats

  • Total investments: 10
  • Round size: Seed $500k–$11M; Series C $2.2M–$15M
  • Lead/follow: 40% lead, 60% follow

Portfolio highlights

  • JOYCLE — JOYCLE is a waste management company that specializes in trash recycling, disposal, and environmental consulting services.
  • HashPort — HashPort is a leading solution provider that strives to innovate Japan with block chain technology
  • Olive Union — Introducing the Olive Smart Ear: A Cool, Affordable Wearable That Removes the Stigma from Impaired Hearing. Each Olive Smart Ear is a single-ear hearing amplifier that improves the sound of everyday life and is customized to your own hearing. When paired to smartphone with Bluetooth, each earbud can also amplify phone
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Yasumasa Manabe
Angel · Tokushima, Tokushima, Japan · 1 investments in Japan Big Data startups

Yasumasa Manabe

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Investment focus

  • Industry: Information Technology, Drones, EdTech
  • Stage:Seed, Series A, Angel
  • Geography: Japan

Investor stats

  • Total investments: 6
  • Round size: Seed $194k–$700k; Series A $1.7M–$30M
  • Lead/follow: 0% lead, 100% follow

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.
  • Amateras Space — Amateras Space is a startup driven by the mission to “expand the realm of human activity,” aiming to establish a next-generation spacesuit business by developing advanced, practical technologies that enable humans to work, explore, and thrive in space and other extreme environments.
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Uenoyama Katsuya
Angel · 1 investments in Japan Big Data startups

Uenoyama Katsuya - CEO @ PKSHA Technology

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Investment focus

  • Industry: Fashion, Software, Advertising
  • Stage:Seed, Angel, Corporate Round
  • Geography: Japan

Investor stats

  • Total investments: 4
  • Lead/follow: no public data

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.
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Shunsuke Ikegami
Angel · Tokyo, Tokyo, Japan · 1 investments in Japan Big Data startups

Shunsuke Ikegami is an angel investor.

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Investment focus

  • Industry: Social, Cooking, Big Data
  • Stage:Seed
  • Geography: Japan

Investor stats

  • Total investments: 2
  • Lead/follow: 0% lead, 100% follow

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 · 1 investments in Japan Big Data startups

Keisuke Tomimatsu - Member of the board @ Musashi Seimitsu Industry

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Investment focus

  • Industry: CRM, Big Data, Analytics
  • Stage:Angel
  • Geography: Japan

Investor stats

  • Total investments: 1
  • Lead/follow: 0% lead, 100% follow

Portfolio highlights

  • ABEJA — ABEJA develops AI business solutions utilizing deep learning.
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Kensuke Furukawa
Angel · Tokyo, Tokyo, Japan · 1 investments in Japan Big Data startups

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

  • Industry: Content, SNS, Internet
  • Stage:Seed, Angel
  • Geography: Japan

Investor stats

  • Total investments: 41
  • Round size: Seed $690k–$33M; Angel $1M–$7.1M
  • Lead/follow: 0% lead, 100% follow

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.
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Hiroshi Tomishima
Angel · 1 investments in Japan Big Data startups

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

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Investment focus

  • Industry: Big Data, Internet, E-Commerce
  • Stage:Seed, Series A
  • Geography: Japan, United States

Investor stats

  • Total investments: 9
  • Round size: Seed $330k–$11M
  • Lead/follow: 0% lead, 100% follow

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 — Book work-ready furnished apartments for 30+ day stays. No lease, home office setup, high-speed internet, and full price transparency for professionals.
  • 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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Takeshi Hirano
Angel · Littleton, Colorado, United States · 1 investments in Japan Big Data startups

Takeshi Hirano is a Geologist at BBCM Engineering.

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Investment focus

  • Industry: Big Data, Aerospace, Machine Learning
  • Stage:Seed
  • Geography: Japan

Investor stats

  • Total investments: 1
  • Lead/follow: 0% lead, 100% follow

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.
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Access 48,091 investors

822 industries, 177 countries. Updated daily. Emails and phones included.

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Jo Hirao
Angel · Tokyo, Tokyo, Japan · 1 investments in Japan Big Data startups

Jo Hirao

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Investment focus

  • Industry: Retail, Medical, Big Data
  • Stage:Series B, Seed, Series C
  • Geography: Japan, Indonesia, Singapore

Investor stats

  • Total investments: 4
  • Round size: Series B $6.5M–$11M
  • Lead/follow: 50% lead, 50% follow

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.
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Shuichi Takenaga
Angel · Tokyo, Tokyo, Japan · 1 investments in Japan Big Data startups

Takenaga Shuuichi is an individual investor.

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Investment focus

  • Industry: Marketing, Financial Services, Management Consulting
  • Stage:Seed, Angel
  • Geography: Japan

Investor stats

  • Total investments: 12
  • Round size: Seed $1.2M–$62M; Angel $14M–$15M
  • Lead/follow: 25% lead, 75% follow

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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Nobuhiro Ariyasu
Angel · Tokyo, Tokyo, Japan · 1 investments in Japan Big Data startups

Nobuhiro Ariyasu is the CEO at Coach United.

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Investment focus

  • Industry: Finance, Content, Internet
  • Stage:Seed, Angel, Series A
  • Geography: Japan, Singapore

Investor stats

  • Total investments: 49
  • Lead/follow: no public data

Portfolio highlights

  • Mign — Mign offers a generative AI-related SaaS solutions for the construction and real estate fields.
  • Finovo — Finovo specializes in the research, development, operation, and maintenance of cutting-edge accounting and financial software solutions.
  • Tsunagari AI — Tsunagari specializes in developing and providing AI-powered consultation services tailored for local governments, aiming to enhance administrative efficiency, support citizen engagement, and streamline public service delivery.
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Kento Hayashi
Angel · Tokyo, Tokyo, Japan · 1 investments in Japan Big Data startups

Kento Hayashi - President & CEO @ Datasection

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Investment focus

  • Industry: Social, Big Data, Analytics
  • Stage:Series A
  • Geography: Japan

Investor stats

  • Total investments: 2
  • Lead/follow: 0% lead, 100% follow

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 Sawa
Angel · 1 investments in Japan Big Data startups

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

  • Industry: Social, Big Data, Analytics
  • Geography: Japan

Investor stats

  • Total investments: 1
  • Lead/follow: 0% lead, 100% follow

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...

Big Data Angel investor funding in Japan at a glance

Stats across 12 deals from 21 investors.

21
investors
in Japan Big Data startups
12
deals
in Japan Big Data startups
$9M
median round
in Japan Big Data startups
5%
lead investors
lead at least one round
42%
Seed
most common funding stage

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