Kuitenbrouwer and Schijf focus on multiple directors from companies with their main activities in the Dutch East Indies. They collected data about Dutch colonial business elite for the year 1902 from the Handboek voor Cultuur- en Handelsondernemingen in Nederlandsch Indië. They have selected the largest Dutch owned joint-stock companies by sector. Their sample contains 212 companies active in the Dutch East Indies in agriculture (98), mining (47), industry (28), insurance (13), banking (10), and other sectors. The database contains the following information: the year the company was founded, the city where the headquarters is located, the amount of nominal capital, and the sector in which it operates.