- Género Janibacter
- Janibacter hoylei, Shivaji et al. 2009
- Janibacter sp
- Género Jannaschia
- Jannaschia donghaensis, Yoon et al. 2007
- CECT
7802 T; JCM 14563; KCTC 12862; DSW-17
- Jannaschia rubra, Macián et al. 2005
- CECT
5088 T; CIP 108401; DSM 16279; KCTC 22093
- Jannaschia seosinensis, Choi et al. 2006
- CECT
7799 T; JCM 13035; KCCM 42114; strain CL-SP26
- Género Janthinobacterium
- Janthinobacterium lividum, De Ley et al. 1978
- CECT
946 T; ATCC 12473; CCM 160; CCUG 2344; CIP 103349; DSM 1522; Hans H-24; JCM 9043; LMG 2892; LMG 3917; LMG 6034; NCTC 9796; RIMD 0314001; Sneath HB; Sneath D 303; USCC 1498
- Janthinobacterium sp
- Género Jeotgalibaca
- Jeotgalibaca arthritidis, Zamora et al. 2017
- CECT
9157 T; CCUG 69147
- Jeotgalibaca porci, Zamora et al. 2017
- CECT
9156 T; CCUG 69148
- Género Jeotgalibacillus
- Jeotgalibacillus marinus, Yoon et al. 2010
- CECT
4272 T; ATCC 29841; CCUG 28884; CIP 103308; DSM 1297; LMG 6930; NRRL B-14321; Rüger 581
- CECT
4618; ATCC 29840; Rüger 562
- Género Jiangella
- Jiangella anatolica, Ay et al. 2019
- CECT
9378 T; DSM 100984
- Género Jonesia
- Jonesia denitrificans, (Prevot 1961) Rocourt et al. 1987
- CECT
918 T; ATCC 14870; CCM 4048; CCTM La 3225; CIP 55.134; DSM 20603; L26; NCTC 10816; P.L.C. 55134; Prevot 55134; Shoier L26; SLCC 2836
- Género Joostella
- Joostella marina, Quan et al. 2008