| Species | RefIntense Num | Refseq Num | Source |
|---|---|---|---|
| Franconibacter helveticus | 1 | 5 | MGYG |
| Frankia alni | 1 | 1 | HMP |
| Frankia casuarinae | 1 | 4 | HMP |
| Frankia inefficax | 1 | 1 | HMP |
| Frankia sp. EUN1f | 1 | 1 | HMP |
| Fructilactobacillus sanfranciscensis | 1 | 33 | MGYG |
| Fulvimarina pelagi | 1 | 2 | HMP |
| Fusicatenibacter saccharivorans | 1 | 33 | MGYG |
| Fusobacterium gonidiaformans | 3 | 4 | HMP/MGYG |
| Fusobacterium massiliense | 1 | 2 | MGYG |