Founded in 1997, PhenoPath Laboratories, PLLC is a pathology reference laboratory. Based in Seattle, Wash., the company provides screening, diagnostic, prognostic testing and contract research services to physician offices, hospitals, surgery centers, research institutions and biopharmaceutical companies. It uses immunohistochemistry (IHC) and immunofluorescence (IF), fluorescence in situ hybridization (FISH), chromogenic in situ hybridization (CISH), flow cytometry and polymerase chain reaction (PCR) for conducting various tests. PhenoPath Laboratories, PLLC also maintains a comprehensive bank of normal human tissues, human tumors, and cell lines that is used for immunohistochemical or in situ hybridization studies. The company has attained accredited laboratory certificate from The College of American Pathologists.