Cressey, a private investment firm, completed an investment in Avesis, a Guardian subsidiary focused on dental, vision and hearing benefits. Financial terms were not disclosed. "Avēsis is now uniquely positioned to leverage Cressey's outstanding experience and expertise in the fast-growing Medicare and Medicaid space, and its track record of forging winning industry partnerships. By joining forces, Cressey and Guardian will create an expanded platform that meets the needs of our customers and will transform Avēsis as a preferred partner in dental, vision, and hearing benefits for government and commercial markets," Chris Smith, Guardian Head of Group Benefits.