エーザイ株式会社
Tokyo, Japan
Active| Registration number | T6010001000001 |
|---|---|
| Type | Corporation |
| Registered name | エーザイ株式会社 |
| Address | 東京都文京区小石川４丁目６番１０号 4-6-10 Koishikawa, Bunkyo-ku, Tokyo 112-0002, JAPAN |
| Corporate number | 6010001000001 |
| Corporate number assigned on | 2015-10-05 |
| Invoice registered on | 2023-10-01 |
The invoice registration date is when the qualified-invoice-issuer registration (T-number) took effect — it is not the date the company was founded, and it resets only if the business re-registers after revocation or expiry.
Corporate registry record
| Entity type | Kabushiki Kaisha (stock company) |
|---|---|
| Representative | 代表執行役CEO 内藤 晴夫 |
| Reading (furigana) | エーザイ |
| Reading (romaji) | Ezai |
| English name (unofficial) | Eisai K.K. |
| Postal code | 112-0002 |
Source: NTA Corporate Number Publication Site, refreshed daily. Representative: gBizINFO (METI, monthly).
Company profile (gBizINFO)
| Business summary | 医薬品の研究開発、製造、販売および輸出入 |
|---|---|
| Business lines | E:製造業 |
| Employees | 2,979 （male 2,112 / female 867） |
| Capital | ¥44.99B |
| Website | www.eisai.co.jp/index.html |
Source: gBizINFO (METI), refreshed monthly — edited extract by LoreaTec. Figures are as filed by each company.
Timeline — registry changes
| 2024-04-02 | Merger — absorbed another company |
|---|
Source: daily change files of the NTA Corporate Number Publication Site. Before 2023-08-16 only the latest change is known. All company events →
Government contract awards (GEPS)
No public national-government (GEPS) award records for this company in the open data (FY2013 to date).
出典：調達ポータル（https://www.p-portal.go.jp/）
Payments from national budget programmes (行政事業レビュー)
Ministry review sheets report this company as a payee of 1 programme (1 lines, sheet years 2025–2025; total ¥2.0M).
| 2025 FY2024 | 医薬品・医療機器産業海外展開推進事業 ¥2.0M （厚生労働省） 日本企業による医薬品・医療機器等のＷＨＯ（世界保健機関）による事前認証（WHO Prequalification）の取得、推奨（WHO recommendation）の取得、緊急使 |
|---|
Contract details (excerpt): ＷＨＯ事前認証及び推奨の取得並びに途上国向けＷＨＯ推奨機器要覧掲載推進事業 ¥2.0M・補助金等交付 · bidders 1
Source: 行政事業レビュー見える化サイト (Cabinet Secretariat, PDL 1.0) — edited extract by LoreaTec. A sheet year describes the previous fiscal year’s spending. Programme database →
Verify in official sources
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Verifying the invoice number is step one. Our guide covers the full checklist: corporate registry, licenses, and import/export standing.
How to cite this page
Data via LoreaTec BizSearch (https://bizsearch.loreatec.jp/t6010001000001) — Source: National Tax Agency corporate-number and qualified-invoice registries. Retrieved 2026-09-23.
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