| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Bacillus barbaricus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Bacillus azotoformans | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Bacillus azotofixans | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Bacillus axarquiensis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Bacillus aurantiacus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Bacillus asahii | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Bacillus aryabhattai | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Bacillus arvi | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Bacillus arsenicus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Bacillus arsenicoselenatis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Bacillus arseniciselenatis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Bacillus arenosi | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Bacillus arachidis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Bacillus aquimaris | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Bacillus antri | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Bacillus aneurinolyticus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Bacillus aneurinilyticus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Bacillus andreesenii | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Bacillus amylolyticus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Bacillus amyloliquefaciens subsp. plantarum | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Bacillus alvei | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Bacillus alkalitolerans | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Bacillus alkalitelluris | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Bacillus alkalisediminis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Bacillus alkalinitrilicus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Bacillus alkalilacus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Bacillus alkalidiazotrophicus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Bacillus alkalicola | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Bacillus alkalicellulosilyticus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Bacillus alginolyticus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago |