Skip links
Companies
› Japan › Eisai Co., Ltd.
Eisai Co., Ltd. logo

Eisai Co., Ltd.

Private limited company (Ltd.) Active

in

Registration No.
6010001000001
Incorporation Date
2015-10-05
Company Type
Private limited company (Ltd.)
Address
Bunkyo Ward, Japan
Website
www.sec-i.co.jp/
Source: National Tax Agency — Corporate Number Publication Site

Eisai Co., Ltd. is a Private limited company (Ltd.) registered in Japan under 6010001000001, 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 Bunkyo Ward, Japan. No shareholders are recorded for Eisai Co., Ltd.; ownership in this jurisdiction is held as the kabunushi meibo (shareholder register) under Articles 121-122 of the Companies Act, a record kept privately rather than filed publicly. No beneficial owner (UBO) data is recorded for Eisai Co., Ltd.; access to beneficial-ownership data in this jurisdiction is governed by its own register rules. This profile is sourced directly from National Tax Agency — Corporate Number Publication Site and was last updated on 1 October 2026.

Data Provenance
This record is sourced directly from official government registries, including National Tax Agency — Corporate Number Publication Site.

View data sources →

We don’t stop at registry data.
Every company record is enriched with additional intelligence:
  • Company fundamentals
  • Corporate linkage & group structures
  • Digitized company financials
  • Firmographics — websites, social profiles, revenue and employee estimates

View full data dictionary →

Group Structure

Eisai Co., Ltd. has no recorded parent company — it sits at the top of its own group structure, with 17 subsidiaries recorded beneath it across 12 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 17 subsidiaries span Japan, United States, Australia, India, Hong Kong, Vietnam, and 6 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. Three of the 17 go a level deeper still, with their own further subsidiaries recorded beneath them — additional ownership layers this view doesn't expand.

Ultimate HQ
Eisai Co., Ltd.
Japan
Eisai Corporation of North America+ subsidiaries
United StatesUS NJ 2288970

EISAI AUSTRALIA PTY LTD
AustraliaAU 117970993

EISAI PHARMACEUTICALS INDIA PRIVATE LIMITED
IndiaIN 37AABCE8168P1ZW

EISAI (HONG KONG) COMPANY LIMITED
Hong KongHK 14140771

EISAI VIETNAM CO., LTD
VietnamVN 0316480458

THEORIA TECHNOLOGIES K.K.
JapanJP 9010001238282

EA PHARMA CO., LTD.
JapanJP 6010001129088

SUNPLANET CO., LTD.
JapanJP 6010001073518

+9 more entities

Explore the full group structure
Map the complete corporate hierarchy: parent companies, subsidiaries, and cross-border ownership chains.

View full group structure →

Need the full UBO picture on Eisai Co., Ltd.?

Get complete shareholder and officer records, ultimate beneficial owner resolution, and ongoing ownership monitoring.

Frequently Asked Questions

Who is Eisai Co., Ltd.'s UBO (Ultimate Beneficial Owner)?

No Ultimate Beneficial Owner (UBO) data is recorded for Eisai Co., Ltd.; access to beneficial-ownership data in this jurisdiction is governed by its own register rules.

What is Eisai Co., Ltd.'s company registration number?

Eisai Co., Ltd.'s registration number is 6010001000001, filed with National Tax Agency — Corporate Number Publication Site in Japan. Its current status on the register is active.

Is Eisai Co., Ltd. still an active company?

Eisai Co., Ltd.'s status on National Tax Agency — Corporate Number Publication Site is listed as active.

When was Eisai Co., Ltd. incorporated?

Eisai Co., Ltd. was incorporated on 5 October 2015, according to National Tax Agency — Corporate Number Publication Site.

What is Eisai Co., Ltd.'s registered address?

The registered address on file for Eisai Co., Ltd. is Bunkyo Ward, Japan.

What legal structure is Eisai Co., Ltd. registered as?

Eisai Co., Ltd. is registered as a Private limited company (Ltd.) in Japan.

Does Eisai Co., Ltd. have a parent company or subsidiaries?

Eisai Co., Ltd. has no recorded parent company — it sits at the top of its own group structure, with 17 subsidiaries recorded beneath it across 12 jurisdictions. Those 17 subsidiaries span Japan, United States, Australia, India, Hong Kong, Vietnam, and 6 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. Three of the 17 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 Eisai 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 Eisai 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 Eisai 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 Eisai 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.

This website uses cookies to improve your web experience.