| brunei | | uncultured candidate division brc1 bacterium | species | 2 | 0 |
| brunei | brunei and muara district | uncultured candidate division brc1 bacterium | species | 1 | 0 |
| china | | uncultured candidate division brc1 bacterium | species | 3 | 0 |
| china | hunan | uncultured candidate division brc1 bacterium | species | 1 | 0 |
| france | | uncultured candidate division brc1 bacterium | species | 1 | 0 |
| japan | | uncultured candidate division brc1 bacterium | species | 2 | 0 |
| mexico | | uncultured candidate division brc1 bacterium | species | 4 | 0 |
| mexico | baja california sur | uncultured candidate division brc1 bacterium | species | 7 | 0 |
| mexico | tamaulipas | uncultured candidate division brc1 bacterium | species | 3 | 0 |
| netherlands | north holland province | uncultured candidate division brc1 bacterium | species | 66 | 0 |
| united kingdom | scotland | uncultured candidate division brc1 bacterium | species | 3 | 0 |