| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Burkholderia caribensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Burkholderia calidae | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Burkholderia caledonica | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Burkholderia caballeronis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Burkholderia bryophila | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Burkholderia bannensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Burkholderia aspalathi | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Burkholderia arvi | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Burkholderia arationis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Burkholderia andropogonis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Burkholderia alpina | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Burkholderia acidipaludis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Bryantella | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Bryantella formatexigens T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Brucepastera | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Brucepastera parasyntrophica T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Brucella suis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Brucella ovis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Brucella neotomae | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Brucella canis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Brucella abortus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Brotonthovivens | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Brotonthovivens ammoniilytica T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Brotolimicola | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Brotolimicola acetigignens T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Breznakiella | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Breznakiella homolactica T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Brevundimonas huaxiensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Brevibacterium vitarumen | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Brevibacterium vitaeruminis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago |