Castlight Health, Inc. offers a health benefits platform that engages employees to make healthcare decisions, and enables employers to communicate and measure their benefit programs. The Company operates through cloud-based products segment. Its technology offering aggregates data and applies analytics to make healthcare data transparent. Its products deliver employee engagement and enable employers to integrate benefit programs into a single platform available to employees and their families. Its health benefits platform engages external data and its substantial user base to provide a single, end-to-end solution that engages employees through personalized and relevant communications. Its offering provides employers the opportunity to communicate, measure, and get value out of their benefits and programs on a real-time basis. It offers cross-sell products, such as Castlight Action, Castlight Pharmacy, Castlight Dental, Castlight Elevate, Castlight Protect and Castlight Rewards.