Founded in 1935, APCO International is one of the largest organizations that offers a range of public safety communication services in the world. It maintains the Communication Center & 9-1-1 Services Department. The organization has more than 16,000 members. APCO International operates a subsidiary, APCO Institute, which is a nonprofit educational institution that serves the public safety communications industry. The organization conducts several conferences and meetings. It also maintains the Public Safety Foundation of America. APCO International operates a store that provides a variety of apparel, accessories and gift items. The organization maintains the Automated Frequency Coordination, which offers engineering and licensing services.