Domain Bacteria Woese et al. 1990
   Phylum Proteobacteria Garrity and Holt 2001 see Phylum Proteobacteria Garrity et al. 2005
     Class "Betaproteobacteria" Garrity et al. 2001 nom. ined. see Class Betaproteobacteria Garrity et al. 2006
       Order "Neisseriales" see Order Neisseriales Tønjum 2006
         Family Neisseriaceae Prévot 1933 (Approved Lists 1980)
           Genus Alysiella Langeron 1923 (Approved Lists 1980)
           Genus Aquaspirillum Hylemon et al. 1973 (Approved Lists 1980)
           Genus Catenococcus Sorokin 1994
           Genus Chromobacterium Bergonzini 1880 (Approved Lists 1980)
           Genus Eikenella Jackson and Goodman 1972 (Approved Lists 1980)
           Genus Formivibrio Tanaka et al. 1991
           Genus Iodobacter Logan 1989
           Genus Kingella Henriksen and Bøvre 1976 (Approved Lists 1980)
           Genus Microvirgula Patureau et al. 1998 see Genus Aquaspirillum Hylemon et al. 1973 (Approved Lists 1980)
           Genus Prolinoborus Pot et al. 1992
           Genus Simonsiella Schmid 1922 (Approved Lists 1980)
           Genus Vitreoscilla Pringsheim 1949 (Approved Lists 1980)
           Genus Vogesella Grimes et al. 1997
           1 Genus Neisseria Trevisan 1885 (Approved Lists 1980)