Solstas Lab Partners, LLC We are one of the largest full-service laboratories in the nation. We support the unique needs of our clients and their patients with a full range of clinical, anatomic pathology and esoteric testing services. Our goal is to help you improve the health and well-being of your patients through the offering of a broad range of test menus and services in convenient patient service locations, while making available a suite of advanced client connectivity solutions for the seamless ordering of tests and retrieval of results.