| Origin | Code | Comment | Supplementary Taxo |
|---|
| Haemophilus influenzae | ISHin | | |
| Haemophilus paragallinarum | ISHpa | | |
| Haemophilus parasuis | ISHps | | |
| Hahella chejuensis | ISHch | | |
| Haladaptatus paucihalophilus | ISHapa | | |
| Halalkalicoccus jeotgali | ISHje | | |
| Halanaerobium congolense | ISHco | | |
| Halanaerobium hydrogeniformans | ISHahy | | |
| Haliangium ochraceum | ISHoc | | |
| Haliscomenobacter hydrossis | ISHhy | | |
| Haloactinospora alba | ISHaal | | |
| Haloarchaeobius iranensis | ISHir | | |
| Haloarcula amylolytica | ISHam | | |
| Haloarcula californiae | ISHaca | | |
| Haloarcula hispanica | ISHhi | | |
| Haloarcula japonica | ISHja | | |
| Haloarcula marismortui | ISHma | | |
| Haloarcula sinaiiensis | ISHsi | | |
| Halobacillus halophilus | ISHaha | | |
| Halobacterium hubeiense | ISHhu | | |
| Halobacterium salinarum | ISH | Predefined common nomenclature | |
| Halobacterium sp. | ISHasp | | |
| Halobellus clavatus | ISHcl | | |
| Halobellus rufus | ISHaru | | |
| Halobiforma lacisalsi | ISHala | | |
| Halococcus salifodinae | ISHsa | | |
| Halococcus thailandensis | ISHth | | |
| Haloferax alexandrinus | ISHal | | |
| Haloferax denitrificans | ISHade | | |
| Haloferax elongans | ISHel | | |
| Haloferax gibbonsii | ISHgi | | |
| Haloferax larsenii | ISHalo | | |
| Haloferax mediterranei | ISHme | | |
| Haloferax mucosum | ISHamu | | |
| Haloferax prahovense | ISHpr | | |
| Haloferax sp. | ISHals | | |
| Haloferax volcanii | ISHvo | | |
| Halogeometricum borinquense | ISHbo | | |
| Halogeometricum pallidum | ISHpal | | |
| Halogranum rubrum | ISHrub | | |
| Halogranum salarium | ISHsr | | |
| Halohasta litchfieldiae | ISHli | | |
| Halomicrobium mukohataei | ISHmu | | |
| Halomonas daqiaonensis | ISHda | | |
| Halomonas meridiana | ISHame | | |
| Halomonas sp. | ISHsp | | |
| Halomonas titanicae | ISHati | | |
| Halomonas zincidurans | ISHzi | | |
| Halonotius sp. | ISHas | | |
| Halophilic archaeon | ISHarch | | |
| Halopiger sp. | ISHlsp | | |
| Halopiger xanaduensis | ISHxa | | |
| Haloplanus natans | ISHna | | |
| Haloplanus rubicundus | ISHarb | | |
| Haloquadratum walsbyi | ISHwa | | |
| Halorhabdus tiamatea | ISHti | | |
| Halorhabdus utahensis | ISHut | | |
| Halorhodospira halochloris | ISHahl | | |
| Halorhodospira halophila | ISHha | | |
| Halorubrum arcis | ISHaar | | |
| Halorubrum californiensis | ISHca | | |
| Halorubrum ezzemoulense | ISHez | | |
| Halorubrum halophilum | ISHalh | | |
| Halorubrum kocurii | ISHko | | |
| Halorubrum lacusprofundi | ISHla | | |
| Halorubrum saccharovorum | ISHasa | | |
| Halorubrum sp. | ISHalsp | | |
| Halosarcina pallida | ISHalp | | |
| Halostagnicola larsenii | ISHall | | |
| Haloterrigena sp. | ISHlt | | |
| Haloterrigena turkmenica | ISHtu | | |
| Halothermothrix orenii | ISHor | | |
| Halovenus aranensis | ISHara | | |
| Halovivax ruber | ISHru | | |
| Helicobacter cetorum | ISHce | | |
| Helicobacter pylori | ISHp | Predefined common nomenclature | |
| Heliobacterium modesticaldum | ISHmo | | |
| Herminiimonas arsenicoxydans | ISHar | | |
| Hoeflea phototrophica | ISHph | | |
| Hungatella hathewayi | ISHuha | | |
| Hydrogenivirga sp. | ISHysp | | |
| Hydrogenovibrio marinus | ISHyma | | |
| Hyphomonas neptunium | ISHne | | |