The Culture Collection of Yeasts (CCY) maintains about 3300 strains, among them yeasts of medical and industrial importance (brewing and wine yeasts) and isolates from various natural sources (water, soil, and plant material). CCY is a part of the Institute of Chemistry, Slovak Academy of Sciences, and is a member of the European Culture Collections’ Organization (ECCO) and the World Federation for Culture Collections (WFCC). CCY has the status of an International Depository Authority for the purpose of patent procedure.