Clinical Pathology Laboratories | 12,136 followers on LinkedIn. Quality is in our DNA | Clinical Pathology Laboratories (CPL) is a medically-led company dating back to 1948. For over 75 years, we've proudly served the Austin, Texas medical community as their preferred laboratory partner. CPL maintains the largest laboratory presence in Austin with over 2400 laboratory staff and a network of over 150 pathologists throughout the Southwest, serving local communities.