| Class | Order | Family | Genus | Species |
|---|---|---|---|---|
| Acidithiobacillia | 1 | 2 | 3 | 157 |
| Alphaproteobacteria | 30 | 111 | 814 | 67412 |
| Betaproteobacteria | 7 | 33 | 291 | 28829 |
| Candidatius Mariprofundia | 1 | 1 | 2 | 99 |
| Candidatus Lambdaproteobacteria | 0 | 0 | 0 | 6 |
| Candidatus Muproteobacteria | 0 | 0 | 0 | 15 |
| Gammaproteobacteria | 48 | 127 | 753 | 120564 |
| Hydrogenophilia | 1 | 1 | 3 | 98 |
| Magnetococcia | 1 | 2 | 4 | 63 |