Castlight Health, Inc. operates a health benefits platform in the United States. The company's platform engages employees to make better health decisions and enables employers to communicate and measure their benefit programs. Its platform also provides real-time insight into employee engagement with benefits and programs enabling employers to monitor and adjust their strategies. The company also offers communication and engagement, implementation, and customer support services. It serves customers in a range of industries, including education, manufacturing, retail, technology, and government. The company was formerly known as Ventana Health Services and changed its name to Castlight Health, Inc. in April 2010. Castlight Health, Inc. was founded in 2008 and is headquartered in San Francisco, California.