Segment, the customer data infrastructure company, raised $175m in Series D financing. Meritech Capital, GV and Accel participated in the round. "Segment transforms the way that businesses collect and manage customer data, with a particular emphasis on first-party data,” said Vas Natarajan of Accel. “Combined with powerful governance and audience management tools, Segment is the backbone for how great companies sell, market, and support their customers. We are so excited to have led their original Series A as well as this latest round, and to support their continued growth.”