| T00626 | nmr | Nitrosopumilus maritimus |
| T02303 | nir | Candidatus Nitrosopumilus sediminis |
| T02304 | nkr | Candidatus Nitrosopumilus koreensis |
| T03656 | nid | Nitrosopumilus piranensis |
| T03758 | nin | Nitrosopumilus adriaticus |
| T06175 | niw | Candidatus Nitrosopumilus sp. SW |
| T06688 | ncl | Nitrosopumilus cobalaminigenes |
| T06689 | nox | Nitrosopumilus oxyclinae |
| T06690 | nue | Nitrosopumilus ureiphilus |
| T07707 | nip | Nitrosopumilus sp. K4 |
| T08647 | nzt | Nitrosopumilus zosterae |
| T04846 | nct | Candidatus Nitrosomarinus catalina |
| T06694 | nic | Nitrosarchaeum sp. AC2 |
| T02305 | nga | Candidatus Nitrososphaera gargensis |
| T03200 | nvn | Nitrososphaera viennensis |
| T03224 | nev | Candidatus Nitrososphaera evergladensis |
| T04185 | taa | Candidatus Nitrosocosmicus oleophilus |
| T05935 | nfn | Candidatus Nitrosocosmicus franklandianus |
| T05329 | ncv | Candidatus Nitrosocaldus cavascurensis |
| T04889 | ndv | Nitrosotalea devaniterrae |
| T01380 | csy | Cenarchaeum symbiosum |
| T02904 | csu | Candidatus Caldarchaeum subterraneum |
| T03537 | nbv | Candidatus Nitrosopelagicus brevis |
| T03883 | tah | Candidatus Nitrosotenuis cloacae |
| T07741 | niu | Candidatus Nitrosotenuis sp. DW1 |
| T09234 | nck | Candidatus Nitrosotenuis chungbukensis |
| T06635 | ccai | Conexivisphaera calida |
Organism group: Nitrososphaerota