OpenBizGraph is a project that makes global company information and business relationships easier to explore through a searchable database and public API. Focused primarily on Japanese companies, it gathers information on more than 210,000 businesses across 243 countries and regions, using web crawling and AI, with data updated daily. Its company profiles bring together basic details such as names, stock codes, locations, leadership, capital and employee counts, alongside business keywords, official websites, company histories, news and public records.

Users can explore relationships including parent and subsidiary links, group affiliations, customers, suppliers, business partnerships, banks and shareholders, and view connections as a network graph. The site also aggregates company announcements and investor-relations news, highlights recently updated records, and reports data coverage and processing status. OpenBizGraph provides its searchable web service and the same company data in JSON through a free public API.

The API requires no authentication or request limits, and the project states that commercial use is permitted, making its data accessible for research and business applications