| Family | Genus | Species |
|---|---|---|
| Alcaligenaceae | 36 | 2605 |
| Burkholderiaceae | 27 | 10336 |
| Candidatus Eutrophomonadaceae | 0 | 0 |
| Candidatus Eutrophovitaceae | 0 | 0 |
| Chitinimonadaceae | 0 | 3 |
| Comamonadaceae | 43 | 5048 |
| Oxalobacteraceae | 22 | 2994 |
| Saeziaceae | 1 | 2 |
| Sphaerotilaceae | 16 | 886 |
| Sutterellaceae | 7 | 81 |
| Thiobacteraceae | 1 | 7 |
| mealybug endosymbionts | 0 | 1 |