| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Sinorhizobium fredii | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sinorhizobium arboris | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sinorhizobium americanus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sinorhizobium americanum | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sinorhizobium alkalisoli | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sinomicrobium weinanense | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sinomicrobium kalidii | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sinococcus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sinococcus qinghaiensis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sinobacter | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sinobacter flavus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sinisalibacter | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sinisalibacter lacisalsi | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Singularimonas | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Singularimonas variicoloris | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Simonsiella steedae | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Simonsiella crassa | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Silvibacterium dinghuense | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Silicibacter | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Silicibacter pomeroyi | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Silicibacter lacuscaerulensis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sideroxyarcus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sideroxyarcus emersonii | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Siccirubricoccus phaeus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Siansivirga jejunensis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Shouchella | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Shouchella xiaoxiensis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Shouchella shacheensis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Shouchella rhizosphaerae | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Shouchella plakortidis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago |