Infronia Holdings Co., Ltd.
Infronia Holdings Co., Ltd. is a Private limited company (Ltd.) registered in Japan under 3010001221541, and its current status with National Tax Agency — Corporate Number Publication Site is active. The company was incorporated on 7 October 2021 and lists its registered address as Chiyoda Ward, Japan. 1 shareholder is on record for Infronia 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 1 October 2026.
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Shareholders
1
Shareholders of Infronia Holdings Co., Ltd.
One shareholder is currently on record for Infronia 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 VANGUARD STAR FUNDS-Vanguard Total International Stock Index Fund, holding 20.2% — the largest recorded stake. Because the 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-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 |
|---|---|---|---|
| VANGUARD STAR FUNDS-Vanguard Total International Stock Index Fund | 20.2% | National Tax Agency — Corporate Number Publication Site |
Officers
5
Directors and officers of Infronia Holdings Co., Ltd.
The Executive Officer & Director of Infronia Holdings Co., Ltd. currently on record is Masaaki Shioiri; five officers are currently on record for Infronia Holdings Co., Ltd., filed with National Tax Agency — Corporate Number Publication Site. Management authority at Infronia 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 13 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 Infronia Holdings Co., Ltd.
Infronia Holdings Co., Ltd. has no recorded parent company — it sits at the top of its own group structure, with 8 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.
- INFOINF INC. (Japan)
- MAEDA CORPORATION (Japan)
- MAEDA ROAD CONSTRUCTION CO., LTD. (Japan)
- MAEDA SEISAKUSHO CO.,LTD. (Japan)
- SUMITOMO MITSUI CONSTRUCTION CO.,LTD. (Japan)
- INFRONEER STRATEGY AND INNOVATION K.K. (Japan)
- SWING CORPORATION (Japan)
- JAPAN WIND DEVELOPMENT CO., LTD. (Japan)
Data availability
Those 8 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. Six of the 8 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.
Infronia Holdings Co., Ltd.
Japan
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Frequently Asked Questions
Who owns Infronia Holdings Co., Ltd.?
One shareholder is currently on record for Infronia 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 VANGUARD STAR FUNDS-Vanguard Total International Stock Index Fund, holding 20.2% — the largest recorded stake. Because the 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 Infronia Holdings Co., Ltd.'s UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for Infronia 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 Infronia Holdings Co., Ltd. have on record?
1 shareholder is shown on record for Infronia Holdings Co., Ltd..
What is Infronia Holdings Co., Ltd.'s company registration number?
Infronia Holdings Co., Ltd.'s registration number is 3010001221541, filed with National Tax Agency — Corporate Number Publication Site in Japan. Its current status on the register is active.
Is Infronia Holdings Co., Ltd. still an active company?
Infronia Holdings Co., Ltd.'s status on National Tax Agency — Corporate Number Publication Site is listed as active.
When was Infronia Holdings Co., Ltd. incorporated?
Infronia Holdings Co., Ltd. was incorporated on 7 October 2021, according to National Tax Agency — Corporate Number Publication Site.
What is Infronia Holdings Co., Ltd.'s registered address?
The registered address on file for Infronia Holdings Co., Ltd. is Chiyoda Ward, Japan.
What legal structure is Infronia Holdings Co., Ltd. registered as?
Infronia Holdings Co., Ltd. is registered as a Private limited company (Ltd.) in Japan.
Who are the officers/directors of Infronia Holdings Co., Ltd.?
The Executive Officer & Director of Infronia Holdings Co., Ltd. currently on record is Masaaki Shioiri; five officers are currently on record for Infronia Holdings Co., Ltd., filed with National Tax Agency — Corporate Number Publication Site. Management authority at Infronia Holdings Co., Ltd. sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does Infronia Holdings Co., Ltd. have a parent company or subsidiaries?
Infronia Holdings Co., Ltd. has no recorded parent company — it sits at the top of its own group structure, with 8 subsidiaries recorded beneath it across 1 jurisdiction. Those 8 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. Six of the 8 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 Infronia 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 Infronia 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 Infronia 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 Infronia 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 1 October 2026.