The Corporate Invention Board (CIB2) database is designed for the analysis of technological knowledge creation of the worldwide top corporate R&D performers, using patents as a proxy. It includes 3992 companies. It focuses on the ‘priority patents’ applied by the parent companies and the subsidiaries they control. For patents, it relies on the patent data included in the RISIS Patent Database (RPD) . The list of companies was elaborated using several editions of the EU Industrial R&D Investment Scoreboard and the lists of WIPO top applicants. CIB2 also gives basic data on the companies (locations, sectors, size, financial data).