Medias Holdings Co., Ltd.
Medias Holdings Co., Ltd. is a Private limited company (Ltd.) registered in Japan under 3010001135832, 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 Medias Holdings 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 29 September 2026.
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Shareholders
5
Shareholders of Medias Holdings Co., Ltd.
Five shareholders are currently on record for Medias Holdings 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 Japanese Small Company Series, holding 62.4% — a majority holding — followed by Dimensional ETF Tr-Dimensional World ex U.S. Core Equity 2 ETF at 3.2%; 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.
Data availability
The register reports 10 shareholders in total, though only the top 5 by holding are shown in this view.
Data-provider feed — rows as supplied to Zavia for National Tax Agency — Corporate Number Publication Site, including entries the profile above does not cover. These rows are not a verbatim copy of the register: they have been found to duplicate the same person under different spellings and to keep a status of Active after an appointment ended. Where they disagree with the profile above, the profile is the checked version.
| Shareholder | Type | Holding | Source Document |
|---|---|---|---|
| DFA Japanese Small Company Series | 62.4% | National Tax Agency — Corporate Number Publication Site | |
| Dimensional ETF Tr-Dimensional World ex U.S. Core Equity 2 ETF | 3.2% | National Tax Agency — Corporate Number Publication Site | |
| DFA Investment Dimensions-DFA World Ex U.S. Targeted Value Port | 2.4% | National Tax Agency — Corporate Number Publication Site | |
| Brighthouse Fds Tr II-BH/Dimensional International Small Co Port | 1.6% | National Tax Agency — Corporate Number Publication Site | |
| Dimensional ETF Tr-Dimensional International Core Equity 2 ETF | 1.5% | National Tax Agency — Corporate Number Publication Site |
Officers
5
Directors and officers of Medias Holdings Co., Ltd.
The Ceo, President & Representative Director of Medias Holdings Co., Ltd. currently on record is Yasuhiko Ikeya; five officers are currently on record for Medias Holdings Co., Ltd., filed with National Tax Agency — Corporate Number Publication Site. Management authority at Medias Holdings 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.
Data availability
The register reports 9 officers in total, including past appointments, though only the 5 most relevant records are shown here.
Data-provider feed — rows as supplied to Zavia for National Tax Agency — Corporate Number Publication Site, including entries the profile above does not cover. These rows are not a verbatim copy of the register: they have been found to duplicate the same person under different spellings and to keep a status of Active after an appointment ended. Where they disagree with the profile above, the profile is the checked version.
Group Structure
Group structure of Medias Holdings Co., Ltd.
Medias Holdings Co., Ltd. has no recorded parent company — it sits at the top of its own group structure, with 11 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.
- MEDIUS SOLUTION CO.,LTD. (Japan)
- MAKOTO MEDICAL SYSTEMS INC. (Japan)
- A. NORTH MEDICAL INC. (Japan)
- SANO MEDICAL INSTRUMENTS CO., LTD. (Japan)
- KURIBARA MEDICAL INSTRUMENTS CO., LTD. (Japan)
- MIUL HEALTHCARE CO., LTD. (Japan)
- MITAS INC. (Japan)
- AKITA IKA KIKAITEN, K.K. (Japan)
- KYOWA MEDICAL CORPORATION (Japan)
- MEDILISS LOGI K.K. (Japan)
Data availability
Those 11 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. Three of the 11 go a level deeper still, with their own further subsidiaries recorded beneath them — additional ownership layers this view doesn't expand.
Data-provider feed — rows as supplied to Zavia for National Tax Agency — Corporate Number Publication Site, including entries the profile above does not cover. These rows are not a verbatim copy of the register: they have been found to duplicate the same person under different spellings and to keep a status of Active after an appointment ended. Where they disagree with the profile above, the profile is the checked version.
Medias Holdings Co., Ltd.
Japan
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Frequently Asked Questions
Who owns Medias Holdings Co., Ltd.?
Five shareholders are currently on record for Medias Holdings 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 Japanese Small Company Series, holding 62.4% — a majority holding — followed by Dimensional ETF Tr-Dimensional World ex U.S. Core Equity 2 ETF at 3.2%; 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 Medias Holdings Co., Ltd.'s UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for Medias Holdings 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 Medias Holdings Co., Ltd. have on record?
5 shareholders are shown on record for Medias Holdings Co., Ltd.. The register reports 10 in total; only the top 5 by holding are shown here.
What is Medias Holdings Co., Ltd.'s company registration number?
Medias Holdings Co., Ltd.'s registration number is 3010001135832, filed with National Tax Agency — Corporate Number Publication Site in Japan. Its current status on the register is active.
Is Medias Holdings Co., Ltd. still an active company?
Medias Holdings Co., Ltd.'s status on National Tax Agency — Corporate Number Publication Site is listed as active.
When was Medias Holdings Co., Ltd. incorporated?
Medias Holdings Co., Ltd. was incorporated on 5 October 2015, according to National Tax Agency — Corporate Number Publication Site.
What is Medias Holdings Co., Ltd.'s registered address?
The registered address on file for Medias Holdings Co., Ltd. is Chiyoda Ward, Japan.
What legal structure is Medias Holdings Co., Ltd. registered as?
Medias Holdings Co., Ltd. is registered as a Private limited company (Ltd.) in Japan.
Who are the officers/directors of Medias Holdings Co., Ltd.?
The Ceo, President & Representative Director of Medias Holdings Co., Ltd. currently on record is Yasuhiko Ikeya; five officers are currently on record for Medias Holdings Co., Ltd., filed with National Tax Agency — Corporate Number Publication Site. Management authority at Medias Holdings Co., Ltd. sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does Medias Holdings Co., Ltd. have a parent company or subsidiaries?
Medias Holdings Co., Ltd. has no recorded parent company — it sits at the top of its own group structure, with 11 subsidiaries recorded beneath it across 1 jurisdiction. Those 11 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. Three of the 11 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 Medias Holdings 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 Medias Holdings 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 Medias Holdings 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 Medias Holdings 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 29 September 2026.