| brazil | | uncultured methylomonas sp. | species | 4 | 0 |
| china | | uncultured methylomonas sp. | species | 4 | 0 |
| china | heilongjiang | uncultured methylomonas sp. | species | 2 | 0 |
| china | hunan | uncultured methylomonas sp. | species | 4 | 0 |
| india | | uncultured methylomonas sp. | species | 6 | 0 |
| indonesia | central kalimantan province | uncultured methylomonas sp. | species | 4 | 0 |
| italy | | uncultured methylomonas sp. | species | 3 | 0 |
| japan | okinawa prefecture | uncultured methylomonas sp. | species | 1 | 0 |
| netherlands | | uncultured methylomonas sp. | species | 1 | 0 |
| romania | | uncultured methylomonas sp. | species | 1 | 0 |
| spain | castile and leon | uncultured methylomonas sp. | species | 12 | 0 |
| united kingdom | | uncultured methylomonas sp. | species | 2 | 0 |
| united states | | uncultured methylomonas sp. | species | 1 | 0 |
| united states | georgia | uncultured methylomonas sp. | species | 2 | 0 |
| united states | north carolina | uncultured methylomonas sp. | species | 2 | 0 |