| Class | Order | Family | Genus | Species |
|---|---|---|---|---|
| Acidithiobacillia | 1 | 2 | 3 | 157 |
| Alphaproteobacteria | 31 | 120 | 832 | 67714 |
| Betaproteobacteria | 7 | 33 | 292 | 28939 |
| Candidatius Mariprofundia | 1 | 1 | 2 | 99 |
| Candidatus Lambdaproteobacteria | 0 | 0 | 0 | 6 |
| Candidatus Muproteobacteria | 0 | 0 | 0 | 15 |
| Gammaproteobacteria | 48 | 128 | 760 | 121592 |
| Hydrogenophilia | 1 | 1 | 3 | 100 |
| Magnetococcia | 1 | 2 | 4 | 65 |