National Corporate Radar is a Japanese corporate information search service that brings together publicly available data about companies and other legal entities. It provides searchable records for 5,843,372 organizations, with lookup by company name, 13-digit corporate number, or 12-digit company and corporate registration number. Users can browse by prefecture or industry and view information such as registered address, invoice registration status, industry, employee scale, website, representative, and capital, where available.

The service links the National Tax Agency’s corporate number data with information published by other public bodies, including records on eligible invoice issuers and business or workplace details. It also helps users distinguish entities with the same name or address. Rather than scoring or rating organizations, the site presents facts released by public agencies and explains the relationships between different identification numbers. Its data is offered as reference information, not as a basis for transactions or other decisions. National Corporate Radar also provides guidance about corporate numbers and related public records, alongside links to its data sources, usage terms, and correction or removal request process.