Sankosei Co., Ltd.
Sankosei Co., Ltd. is a registered legal entity registered in Japan under 5230001008725, 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 Nanto City, Japan. 5 shareholders are on record for Sankosei 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 Sankosei 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 DFA International Small Cap Value Portfolio, holding 40.8% — the largest recorded stake — followed by DFA Japanese Small Company Series at 20.7%; 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 |
|---|---|---|---|
| DFA International Small Cap Value Portfolio | 40.8% | National Tax Agency — Corporate Number Publication Site | |
| DFA Japanese Small Company Series | 20.7% | National Tax Agency — Corporate Number Publication Site | |
| DFA International Core Equity Portfolio | 18.5% | National Tax Agency — Corporate Number Publication Site | |
| Dimensional ETF Tr-Dimensional International Small Cap ETF | 3.9% | National Tax Agency — Corporate Number Publication Site | |
| DFA International Vector Equity Port | 3.5% | National Tax Agency — Corporate Number Publication Site |
Officers
5
The Head Of Next Generation Technology, Head Of E-business Unit, Senior Executive Officer & Director of Sankosei Co., Ltd. currently on record is Toshio Mitsushima; five officers are currently on record for Sankosei Co., Ltd., filed with National Tax Agency — Corporate Number Publication Site.
The register reports 12 officers in total, including past appointments, though only the 5 most relevant records are shown here.
Management authority at Sankosei 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
Sankosei Co., Ltd. has no recorded parent company — it sits at the top of its own group structure, with 19 subsidiaries recorded beneath it across 11 jurisdictions. 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 19 subsidiaries span Japan, China, Czechia, Thailand, Singapore, Indonesia, and 5 more jurisdictions, 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. Two of the 19 go a level deeper still, with their own further subsidiaries recorded beneath them — additional ownership layers this view doesn't expand.
Sankosei Co., Ltd.
Japan
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Frequently Asked Questions
Who owns Sankosei Co., Ltd.?
Five shareholders are currently on record for Sankosei 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 DFA International Small Cap Value Portfolio, holding 40.8% — the largest recorded stake — followed by DFA Japanese Small Company Series at 20.7%; 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 Sankosei Co., Ltd.'s UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for Sankosei 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 Sankosei Co., Ltd. have on record?
5 shareholders are shown on record for Sankosei Co., Ltd.. The register reports 10 in total; only the top 5 by holding are shown here.
What is Sankosei Co., Ltd.'s company registration number?
Sankosei Co., Ltd.'s registration number is 5230001008725, filed with National Tax Agency — Corporate Number Publication Site in Japan. Its current status on the register is active.
Is Sankosei Co., Ltd. still an active company?
Sankosei Co., Ltd.'s status on National Tax Agency — Corporate Number Publication Site is listed as active.
When was Sankosei Co., Ltd. incorporated?
Sankosei Co., Ltd. was incorporated on 5 October 2015, according to National Tax Agency — Corporate Number Publication Site.
What is Sankosei Co., Ltd.'s registered address?
The registered address on file for Sankosei Co., Ltd. is Nanto City, Japan.
Who are the officers/directors of Sankosei Co., Ltd.?
The Head Of Next Generation Technology, Head Of E-business Unit, Senior Executive Officer & Director of Sankosei Co., Ltd. currently on record is Toshio Mitsushima; five officers are currently on record for Sankosei Co., Ltd., filed with National Tax Agency — Corporate Number Publication Site. Management authority at Sankosei Co., Ltd. sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does Sankosei Co., Ltd. have a parent company or subsidiaries?
Sankosei Co., Ltd. has no recorded parent company — it sits at the top of its own group structure, with 19 subsidiaries recorded beneath it across 11 jurisdictions. Those 19 subsidiaries span Japan, China, Czechia, Thailand, Singapore, Indonesia, and 5 more jurisdictions, 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. Two of the 19 go a level deeper still, with their own further subsidiaries recorded beneath them — additional ownership layers this view doesn't expand.
Can Zavia monitor changes to Sankosei 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 Sankosei 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 Sankosei 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 Sankosei 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.