Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Saccharomycotina O.E. Erikss. & Winka (1997) [monotypic] - budding yeasts
     Class Saccharomycetes O.E. Erikss. & Winka (1997), nom. inval. [monotypic] see Class Saccharomycetes G.Winter (1880)
       Order Saccharomycetales Luerss. (1877)
         Family Saccharomycetaceae G.Winter (1881)
           01 Genus Citeromyces Santa María (1957)
           02 Genus Cyniclomyces Van der Walt & D.B. Scott (1971)
           03 Genus Eremothecium Borzí (1888)
           04 Genus Hagleromyces F.M.P. Sousa, P.B. Morais, Lachance & C.A. Rosa (2014)
           05 Genus Kazachstania Zubcova (1971)
           06 Genus Kluyveromyces Van der Walt (1956), nom. cons.
           07 Genus Lachancea Kurtzman (2003)
           08 Genus Metahyphopichia Sipiczki & Pfliegler (2016)
           09 Genus Nakaseomyces Kurtzman (2003)
           10 Genus Naumovozyma Kurtzman (2008)
           11 Genus Saccharomyces Meyen (1838)
           12 Genus Tetrapisispora Ueda-Nishim. & Mikata (1999)
           13 Genus Torulaspora Lindner (1904)
           14 Genus Vanderwaltozyma Kurtzman (2003)
           15 Genus Yueomyces Q.M. Wang, L. Wang, M. Groenew. & Boekhout (2015)
           16 Genus Zygosaccharomyces B.T.P. Barker (1901)
           17 Genus Zygotorulaspora Kurtzman (2003)