| 251 | S P MARITIME PRIVATE LIMITED - U35111WB1999PTC089195 |
| 252 | S. R. ALLOYS & METALLIKS PRIVATE LIMITED - U35990WB2011PTC165204 |
| 253 | S. S. AUTO SPARES PRIVATE LIMITED - U35303WB2008PTC128391 |
| 254 | SAIL-BENGAL ALLOY CASTINGS PRIVATE LIMITED - U35122WB2013PTC190532 |
| 255 | SAMAKHYA SOLUTIONS PRIVATE LIMITED - U35923WB2018PTC225657 |
| 256 | SAMARTH ENGINEERING CO PVT LTD - U35999WB1982PTC034448 |
| 257 | SANKEY WHEELS LIMITED. - U35911WB2000PLC026633 |
| 258 | SANKEY WHEELS LTD - U35911WB1962PLC012524 |
| 259 | SANSUI SHIPPING PRIVATE LIMITED - U35112WB2004PTC098544 |
| 260 | SEN AND PANDIT INDUSTRIES PVT LTD - U35911WB1958PTC023828 |
| 261 | SEN&CHATTERJEE AGENCIES PVT LTD - U35111WB1954PTC021506 |
| 262 | SEN-RALEIGH LTD - U35921WB1949PLC018079 |
| 263 | SENIND INDUSTRIES LTD. - U35929WB1992PLC057047 |
| 264 | SEVEN SEAS MARINE ENGG WORKS PVT LTD - U35111WB1958PTC023927 |
| 265 | SHAGUN IMPEX PRIVATE LIMITED - U35100WB2009PTC133762 |
| 266 | SHIB SANKAR AUTO & BIKE INDUSTRIES PVT. LTD. - U35921WB1989PTC047172 |
| 267 | SHIPWRIGHTS CONTRACTORS PVT LTD - U35111WB1957PTC023542 |
| 268 | SHIRISH ENGINEERINGS PRIVATE LIMITED - U35122WB2014PTC202167 |
| 269 | SHRACHI INSURANCE AGENCIES PRIVATE LIMITED - U35111WB1991PTC052624 |
| 270 | SHREE UMIA FOODS PRIVATE LIMITED - U35112WB1998PTC087676 |
| 271 | SHRI BHAWANI PLYBORD PRIVATE LIMITED - U35921WB1999PTC131791 |
| 272 | SHYAMALI AUTO UDYOG PRIVATE LIMITED - U35991WB2017PTC223454 |
| 273 | SIKHA SURZO ECONOMY SAVINGS & INVESTMENT COMPANY LTD. - U35999WB1992PLC054437 |
| 274 | SINCERE AUTO STORES PVT. LTD. - U35999WB1993PTC060792 |
| 275 | SINGAL PROJECTS PRIVATE LIMITED - U35203WB1991PTC051219 |