| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Brumicola nitratireducens | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Brevibacterium metallidurans | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Brevibacterium koreense | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Borborobacter | ||||
| Borborobacter arsenicus T | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Bifidobacterium apicola | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Benzoatithermus | ||||
| Benzoatithermus flavus T | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Bengtsoniella | ||||
| Bengtsoniella intestinalis T | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Bacteroides vicugnae | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Bacteriovorax antarcticus | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Bacillus yunxiaonensis | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Bacillus kandeliae | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Bacillus bruguierae | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Atrimonas | ||||
| Atrimonas thermophila T | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Atlantibacter subterraneus | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Asprobacillus argus T | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Ascidiimonas meishanensis | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Archangium lansingense | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Aquibaculum sediminis | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Antrihabitans spumae | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Anoxybacterium | ||||
| Anoxybacterium hadale T | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Amycolatopsis heterodermiae | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Amphibiibacter | ||||
| Amphibiibacter pelophylacis T | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| Ammonicoccus | ||||
| Ammonicoccus fulvus T | Unknown | Valid (ICNP) | Excubia bot about 1 year ago |