How has caste influenced entrepreneurship in India in the past and how does it do so in the present? Using the Industrial Census of 1911, this paper provides the first detailed caste-level mapping of firms in Indian business history and links it to the present by an analysis of the Economic Census of 2013–2014. It finds that while trading castes were dominant, there were significant regional variations and nontrading castes were far more important than usually posited in the literature. Over the