American Proficiency Institute

American Proficiency Institute is a clinical laboratory proficiency testing and external quality assessment provider serving hospital laboratories, physician office labs, clinics, reference laboratories, and point-of-care testing sites. The company offers comprehensive proficiency testing programs across core areas of laboratory medicine, along with online workflow tools for result submission, evaluation review, management reporting, and continuing education. Its offerings are designed to support laboratory accuracy, regulatory compliance, and quality assurance rather than drug development. American Proficiency Institute operates as an active business within the LGC organization following its acquisition, and it markets its services under the API brand from Traverse City, Michigan.