An angel investor and operator angel based in Tokyo, Japan, Fumiaki Koizumi has 10 known investments: Luup, Fabric Tokyo, Osiro, Ukka, FiT, HERP, manebi, Attelu, Farmnote holdings Japan and Aoyama Arts.
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Investment focus
- Stage
- Seed
Contacts
Fumiaki Koizumi portfolio companies (10)
- Luup
- Fabric Tokyo
- Osiro
- Ukka
- FiT
- HERP
- manebi
- Attelu
- Farmnote holdings Japan
- Aoyama Arts
Affiliated funds' portfolios
Executive Director, President at Mercari, whose known portfolio counts 4 companies
- Newmo
- Flamingo
- Ecbo cloak
- Pocket Marche
Investor Profile
Founders in the listed sectors AI, Commerce and Consumer, and focus areas Big Data, Consumer Internet, Data Analytics and E-Commerce will recognize the pattern in this portfolio.
Stage-wise, the known deals cluster around Seed rounds.
Reviewing the investment history helps decide whether there is a realistic fit before reaching out.
Colleagues at Mercari
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Frequently asked questions
Who is Fumiaki Koizumi?
Fumiaki Koizumi is an angel investor and operator angel based in Tokyo, Japan with 10 known investments on file, among them Luup, Fabric Tokyo and Osiro. The sections above list the sectors, stages and firms attached to that record.
What does Fumiaki Koizumi invest in?
Listed sectors include AI, Commerce and Consumer; listed focus areas include Big Data, Consumer Internet, Data Analytics and E-Commerce. Those tags come from the companies attached to this profile, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Fumiaki Koizumi invest at?
The known deals of Fumiaki Koizumi include Seed rounds. Stage is the strongest single filter when you build a target list: an investor with no record at your stage rarely starts with you.
Which firm is Fumiaki Koizumi listed at?
Fumiaki Koizumi is listed as Executive Director, President at Mercari. 3 other people in the database share a firm with Fumiaki Koizumi.
How do I contact Fumiaki Koizumi?
An email address and a LinkedIn page are on file for Fumiaki Koizumi. The address stays masked on this page and is readable inside RaiseHunt after you create an account. The database holds no phone number for this profile.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal