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Japan company search: corporate numbers, gBizINFO and the commercial register

Every company registered in Japan has a 13-digit corporate number assigned by the National Tax Agency, which publishes the number, name and registered address of each corporation on its Corporate Number Publication Site. gBizINFO, run by the Ministry of Economy, Trade and Industry, links that number to government subsidies, procurement, certifications and awards. Full commercial registration records are kept by Legal Affairs Bureaus under the Ministry of Justice.

Release calendar

What it publishes

• Corporate number, name, head office address and change history for registered corporations (National Tax Agency).
• Government procurement awards, subsidies, certifications and workplace information linked to the corporate number (gBizINFO).
• Commercial registration certificates and real property registration records, obtainable for a fee (Ministry of Justice).

Key datasets

• Corporate Number Publication Site
  Free search by name, number or address, with change history.
  Updated: Updated daily
• gBizINFO
  Company-level government data linked to the corporate number.
  Updated: Updated regularly
• Commercial and real property registration
  Ministry of Justice guidance on obtaining registration certificates for companies and land.
  Updated: On request

APIs and downloads

• Corporate number bulk data and API
  Full and differential downloads in CSV and XML; a Web API is available after applying for an application ID.
• gBizINFO API
  REST API and bulk downloads after free registration.

When it publishes

The corporate number site updates on business days as registrations change. gBizINFO refreshes source data from ministries on varying schedules.

How to use it to check a claim

1. Confirm a company exists and its official name by searching its corporate number.
2. Use the change history to check when a company changed name or address.
3. For directors and capital, obtain a registration certificate; the corporate number site does not show them.

Common mistakes

• The corporate number site does not include financial accounts; listed companies file reports through the Financial Services Agency's EDINET system.
• Sole proprietors do not receive corporate numbers.

Can I search Japanese companies in English?

The Corporate Number Publication Site has an English interface and shows English names where companies have registered them.

Questions answered using this source

• What is Japan's GDP and is the economy growing?
• What is the average salary in Japan?

Links checked 14 October 2026. This page describes what the source publishes and gives no verdict on any claim.