| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Bosea spartocytisi | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Blastococcus mobilis | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Blastococcus haudaquaticus | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Blastococcus fimeti | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Blastococcus aurantiacus | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Baekduia alba | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Bacillus pinisoli | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Bacillus dafuensis | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Bacillus cabrialesii subsp. tritici | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Bacillus cabrialesii subsp. cabrialesii | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Aurantimonas marianensis | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Arthrobacter zhangbolii | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Arthrobacter rhizosphaerae | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Arthrobacter ipis | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Arthrobacter gengyunqii | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Arthrobacter caoxuetaonis | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Aristaeella | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Aristaeella lactis | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Aristaeella hokkaidonensis | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Aridibaculum | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Aridibaculum aurantiacum | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Arcobacter roscoffensis | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Arabiibacter | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Arabiibacter massiliensis | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Aquitalea palustris | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Aquiflexum gelatinilyticum | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Antribacter soli | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Antarcticirhabdus | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Antarcticirhabdus aurantiaca | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Anianibacter | Unknown | Valid (ICNP) | Excubia bot about 1 year ago |