| austria | | uncultured candidatus nitrosopumilus sp. | species | 1 | 0 |
| china | | uncultured candidatus nitrosopumilus sp. | species | 1 | 0 |
| germany | | uncultured candidatus nitrosopumilus sp. | species | 1 | 0 |
| india | kerala | uncultured candidatus nitrosopumilus sp. | species | 6 | 0 |
| india | tamil nadu | uncultured candidatus nitrosopumilus sp. | species | 1 | 0 |
| united states | | uncultured candidatus nitrosopumilus sp. | species | 1 | 0 |