How many data sources do Cognism have and where do they come from? 

Using a programmatic approach to data collection, Cognism provides you with the most premium, accurate B2B data to further your goals. We have an in-house team of data researchers and analysts, who work alongside  our artificial intelligence team, to collect, analyse and validate data and build technical data collection tools from public (such as recruiters, news mentions, and social media) and proprietary sources (data points inferred by AI and advanced reasoning algorithms).