ATCC (American Type Culture Collection): Although little known to the general public, the American Type Culture Collection (ATCC) is a key resource for medical research. It is the world's premier biological culture repository. The ATCC assures medical and other biological scientists a reliable source of over 60,000 authenticated, viable cultures of: Algae & Protozoa Bacteria & Bacteriophages Cultured Cell Lines & Hybridomas Fungi & Yeasts Recombinant DNA Materials Viruses & Virus Antisera Plant Tissue Cultures Culture Derived Products Products for Culture Work. The ATCC does research to improve the propagation, preservation, classification, and characterization of cultures and to develop new and enhanced culture products through in-house efforts and collaborative alliances. Established in 1925, the ATCC is now headquartered in Manassas, Virginia.