| Genus | Species Num | Strain Num | SOURCE |
|---|---|---|---|
| Myxococcus | 1 | 1 | HMP |
| Nakamurella | 1 | 1 | HMP |
| Natranaerobius | 1 | 1 | HMP |
| Nautilia | 1 | 1 | HMP |
| Negativibacillus | 1 | 1 | MGYG |
| Negativicoccus | 1 | 1 | MGYG |
| Neisseria | 12 | 21 | HMP/MGYG |
| Neobacillus | 1 | 1 | MGYG |
| Neofamilia | 1 | 1 | MGYG |
| Neorickettsia | 2 | 2 | HMP |