| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Streptomyces bullii | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces bryophytorum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces broussonetiae | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces brevispora | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces brasiliensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces bottropensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces boninensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces boluensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces bohaiensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces bobili | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces bluensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces blastmyceticus | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces bikiniensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces bellus | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces beijiangensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces bauhiniae | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces barkulensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces bangladeshensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces bambusae | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces baliensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces badius | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces bacillaris | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces azureus | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces axinellae | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces avidinii | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces avicenniae | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces avermitilis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces aureus | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces aureoverticillatus | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces aureorectus | Unknown | Valid (ICNP) | Excubia bot over 4 years ago |