F-ON Co., Ltd.
F-ON Co., Ltd. is a Private limited company (Ltd.) registered in Japan under 9010001028064, and its current status with National Tax Agency — Corporate Number Publication Site is active. The company was incorporated on 5 October 2015 and lists its registered address as Chiyoda Ward, Japan. 5 shareholders are on record for F-ON Co., Ltd., and since every one of them is a company rather than an individual, this particular filing does not on its own establish an ultimate beneficial owner (UBO) — identifying one would mean tracing the ownership of each shareholding company in turn. This profile is sourced directly from National Tax Agency — Corporate Number Publication Site and was last updated on 2 October 2026.
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Shareholders
5
Five shareholders are currently on record for F-ON Co., Ltd., reflecting the kabunushi meibo (shareholder register) maintained under Articles 121-122 of the Companies Act rather than a public filing.
The largest of these is Hennessy Japan Small Cap Fund, holding 38.6% — the largest recorded stake — followed by DFA International Small Cap Value Portfolio at 24.1%; the remaining 3 shareholders shown hold smaller stakes.
The register reports 10 shareholders in total, though only the top 5 by holding are shown in this view.
Because every shareholder shown is a company rather than an individual, the ownership chain continues above this level, and no beneficial owner can be established from this filing alone.
| Shareholder | Type | Holding | Source Document |
|---|---|---|---|
| Hennessy Japan Small Cap Fund | 38.6% | National Tax Agency — Corporate Number Publication Site | |
| DFA International Small Cap Value Portfolio | 24.1% | National Tax Agency — Corporate Number Publication Site | |
| DFA Japanese Small Company Series | 14% | National Tax Agency — Corporate Number Publication Site | |
| DFA International Core Equity Portfolio | 12.1% | National Tax Agency — Corporate Number Publication Site | |
| Dimensional ETF Tr-Dimensional International Small Cap Value ETF | 3.3% | National Tax Agency — Corporate Number Publication Site |
Officers
3
Three officers are currently on record for F-ON Co., Ltd., filed with National Tax Agency — Corporate Number Publication Site. Tomotada Shimazaki serves as Ceo & President And Representative Director; Mutsumi Nagasawa serves as Senior Md, Gm Of Technology Management Department, Environment & Energy Department And Director; Hisashi Koike serves as Md & Director.
Management authority at F-ON Co., Ltd. sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
The source filing doesn't specify representation authority — whether officers can act individually or must sign jointly to bind the company — so that detail isn't available here.
Group Structure
F-ON Co., Ltd. has no recorded parent company — it sits at the top of its own group structure, with 10 subsidiaries recorded beneath it across 1 jurisdiction. Each of these downward relationships is derived rather than filed: resolved by matching entities across the registry network, not stated directly in a single document.
Those 10 subsidiaries span Japan jurisdiction, though this list should not be read as complete — subsidiaries only become visible here where shareholder data has actually been filed with a register, so holdings in jurisdictions without that filing simply won't appear.
F-ON Co., Ltd.
Japan
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Frequently Asked Questions
Who owns F-ON Co., Ltd.?
Five shareholders are currently on record for F-ON Co., Ltd., reflecting the kabunushi meibo (shareholder register) maintained under Articles 121-122 of the Companies Act rather than a public filing. The largest of these is Hennessy Japan Small Cap Fund, holding 38.6% — the largest recorded stake — followed by DFA International Small Cap Value Portfolio at 24.1%; the remaining 3 shareholders shown hold smaller stakes. Because every shareholder shown is a company rather than an individual, the ownership chain continues above this level, and no beneficial owner can be established from this filing alone.
Who is F-ON Co., Ltd.'s UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for F-ON Co., Ltd. is itself a company rather than a natural person, so no Ultimate Beneficial Owner (UBO) is identified at this level; establishing one would require tracing the ownership of each shareholding company in turn.
How many shareholders does F-ON Co., Ltd. have on record?
5 shareholders are shown on record for F-ON Co., Ltd.. The register reports 10 in total; only the top 5 by holding are shown here.
What is F-ON Co., Ltd.'s company registration number?
F-ON Co., Ltd.'s registration number is 9010001028064, filed with National Tax Agency — Corporate Number Publication Site in Japan. Its current status on the register is active.
Is F-ON Co., Ltd. still an active company?
F-ON Co., Ltd.'s status on National Tax Agency — Corporate Number Publication Site is listed as active.
When was F-ON Co., Ltd. incorporated?
F-ON Co., Ltd. was incorporated on 5 October 2015, according to National Tax Agency — Corporate Number Publication Site.
What is F-ON Co., Ltd.'s registered address?
The registered address on file for F-ON Co., Ltd. is Chiyoda Ward, Japan.
What legal structure is F-ON Co., Ltd. registered as?
F-ON Co., Ltd. is registered as a Private limited company (Ltd.) in Japan.
Who are the officers/directors of F-ON Co., Ltd.?
Three officers are currently on record for F-ON Co., Ltd., filed with National Tax Agency — Corporate Number Publication Site. Tomotada Shimazaki serves as Ceo & President And Representative Director; Mutsumi Nagasawa serves as Senior Md, Gm Of Technology Management Department, Environment & Energy Department And Director; Hisashi Koike serves as Md & Director. Management authority at F-ON Co., Ltd. sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does F-ON Co., Ltd. have a parent company or subsidiaries?
F-ON Co., Ltd. has no recorded parent company — it sits at the top of its own group structure, with 10 subsidiaries recorded beneath it across 1 jurisdiction. Those 10 subsidiaries span Japan jurisdiction, though this list should not be read as complete — subsidiaries only become visible here where shareholder data has actually been filed with a register, so holdings in jurisdictions without that filing simply won't appear.
Can Zavia monitor changes to F-ON Co., Ltd.'s ownership over time?
This profile reflects a point-in-time snapshot from National Tax Agency — Corporate Number Publication Site. Zavia's monitoring API can track changes to F-ON Co., Ltd.'s registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.
Can I access F-ON Co., Ltd.'s data through an API?
Yes. Zavia's API connects directly to official government ownership registries across 195 countries and territories, including Japan, so records like F-ON Co., Ltd.'s registration, shareholder, UBO, and group-structure data can be queried programmatically instead of viewed one page at a time.
Where does this company information come from, and how current is it?
This record is sourced directly from National Tax Agency — Corporate Number Publication Site and was last synced on 2 October 2026.