Founded in 2003 and based in Washington, D.C. TriStar has pioneered the use of very high-density tissue arrays for truly large-scale analysis of gene/protein expression in human normal and cancer tissues. TriStar has a twelve-year track record supporting the drug discovery and companion diagnostic activities of leading pharmaceutical companies. TriStar provides a single entity for archived tissue samples and contract research by combining our extensive archived tissue repository, state of the art labs, and expert pathology team.