Topcard helps companies leverage their existing content on mobile devices to re-engage existing customers and attract new customers. The company was founded by CEO Tom Van Horn, a serial entrepreneur and senior executive with Paul Allen’s Vulcan Ventures, McKinsey, and Attachmate, and who was the founder and CEO of Mercata, a Vulcan-backed e-commerce company which pioneered group buying and social shopping in the late 1990s and early 2000s.