| Firm Name | Category | City |
| Soni, Laxmikant | Construction Consultant | Bilaspur |
| Soni, M. S. | Construction Consultant | Bilaspur |
| Soni, R. K. | Construction Consultant | Bilaspur |
| Soni, S. K. | Construction Consultant | Bilaspur |
| Sonthalia Agencies | Wholesale FMCG | Bilaspur |
| Sonthalia Agencies | Wholesale Oil | Bilaspur |
| Sonu Gifts | Gift Shops | Bilaspur |
| Soubhaghyam General | Retail General | Bilaspur |
| South East Central Railway (SECR) | Railway | Bilaspur |
| South East Central Railway (SECR) | Transportation | Bilaspur |
| South Eastern Coal Fields Limited (SECL) | Coal Mines | Bilaspur |
| Spectrum Advertising Agency | Advertising Agency | Bilaspur |
