Castlight Health, a search engine for medical care, has closed a $60 million third round of funding, according to a filing with the SEC. The Cleveland Clinic is an investor in the San Francisco based company. Morgan Stanley Investment ManagementThe Wellcome Trust, U.S. Venture Partners, Maverick Capital, Oak Investment Partners and Venrock also invested in the round.

According to the New York Times, Castlight recently signed the grocery chain Safeway as its first customer. By allowing consumers to comparison-shop—and make more informed medical decisions—Castlight aims to help companies like Safeway lower healthcare costs.

Castlight previously raised $21 million. The company plans to use its new funding for hiring and product development.