LoreaTec BizSearch
English|日本語

株式会社Z会

Shizuoka, Japan

Active
Registration numberT9080101006434
TypeCorporation
Registered name株式会社Z会
Address静岡県三島市文教町1丁目9番11号
1-9-11 Bunkyocho, Mishima-shi, Shizuoka 411-0033, JAPAN
Corporate number9080101006434
Corporate number assigned on2015-10-05
Invoice registered on2023-10-01

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 typeKabushiki Kaisha (stock company)
Representative代表取締役 藤井 孝昭
Reading (furigana)ゼットカイ
Reading (romaji)Zettokai
English name (unofficial)Zettokai K.K.
Postal code411-0033

Source: NTA Corporate Number Publication Site, refreshed daily. Representative: gBizINFO (METI, monthly).

Company profile (gBizINFO)

Business summary通信教育事業、首都圏・関西圏・静岡地区の教室事業、出版事業、模擬試験を運営。
Business linesO:教育、学習支援業
Employees854 (male 223 / female 551)
Incorporated2000-05-17
Websitewww.zkai.co.jp/

Source: gBizINFO (METI), refreshed monthly — edited extract by LoreaTec. Figures are as filed by each company.

Timeline — registry changes

2026-07-22Merger — 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).

Browse the awards database →

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 2 programmes (5 lines, sheet years 2024–2025; total ¥1.72B).

2025
FY2024
全国学力・学習状況調査の実施 ¥611.8M (文部科学省)
令和7年度全国学力・学習状況調査の実施(小学校)
2025
FY2024
全国学力・学習状況調査の実施 ¥117.9M (文部科学省)
令和6年度全国学力・学習状況調査の実施(中学校)
2025
FY2024
国費外国人留学生現地選考試験問題作成委託業務 ¥33.0M (文部科学省)
試験問題の作成
2024
FY2023
全国学力・学習状況調査の実施 ¥859.5M (文部科学省)
令和5年度全国学力・学習状況調査の実施(小学校)
2024
FY2023
全国学力・学習状況調査の実施 ¥95.6M (文部科学省)
令和6年度全国学力・学習状況調査の実施(中学校)

Contract details (excerpt): 令和7年度全国学力・学習状況調査を実施するための委託事業(小学校第6学年の児童を対象とした調査) ¥611.8M・一般競争契約(総合評価) · bidders 2 / 令和6年度全国学力・学習状況調査を実施するための委託事業(中学校第3学年の児童を対象とした調査) ¥117.9M・国庫債務負担行為等 / 国費外国人留学生現地選考試験問題作成事業 ¥33.0M・一般競争契約(総合評価) · bidders 2 / 令和5年度全国学力・学習状況調査を実施するための委託事業(小学校第6学年の児童を対象とした調査) ¥859.5M・国庫債務負担行為等 · bidders 0 / 令和6年度全国学力・学習状況調査を実施するための委託事業(中学校第3学年の生徒を対象とした調査) ¥95.6M・随意契約(その他) · bidders 0

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 →

Radio equipment approvals (技適)

3 radio type approvals (技適 / construction design certifications) are on record under this company's brand.

Source: MIC radio-use portal (public notice of technical conformity certifications) — edited extract by LoreaTec. Exact legal-name matches only. Giteki database →

Doing due diligence on this supplier?

Verifying the invoice number is step one. Our guide covers the full checklist: corporate registry, licenses, and import/export standing.

Read the guide

How to cite this page

Data via LoreaTec BizSearch (https://bizsearch.loreatec.jp/t9080101006434) — Source: National Tax Agency corporate-number and qualified-invoice registries. Retrieved 2026-09-24.

Reusing this page, or answering with it? Paste this line. Training and AI answers are allowed — attribution is the only condition. AI content licence