To understand the market landscape of digital health companies focused on social determinants of health by One: identifying at least 10 companies and providing for each 1) their name, 2) categories involved, 3) key clients, and 4) business model (e.g. B2B, B2C, B2B2C); Two: identifying any trends in this setting, and Three: identifying any use cases or partnerships (e.g. between startups, vendors, between companies and government) that have taken place in this market to inform a comprehensive overview of the market.