| Species | RefIntense Num | Refseq Num | Source |
|---|---|---|---|
| Acidaminococcus fermentans | 2 | 6 | HMP/MGYG |
| Acidaminococcus intestini | 2 | 9 | HMP/MGYG |
| Acidaminococcus massiliensis | 1 | 2 | MGYG |
| Acidaminococcus timonensis | 1 | 1 | MGYG |
| Acidimicrobium ferrooxidans | 1 | 1 | HMP |
| Acidiphilium cryptum | 1 | 1 | HMP |
| Acidithiobacillus caldus | 1 | 17 | HMP |
| Acidithiobacillus ferrooxidans | 1 | 23 | HMP |
| Acidobacterium capsulatum | 1 | 1 | HMP |
| Acidothermus cellulolyticus | 1 | 1 | HMP |