| 401 | MAA SAKAMBARI FUELS PRIVATE LIMITED - U23109WB2008PTC129595 |
| 402 | MACLEOD FUELS PRIVATE LIMITED - U23109WB1997PTC084103 |
| 403 | MADHUR COAL MINING PVT LTD - U23109WB2005PTC106427 |
| 404 | MADHYA BHARAT FUELS PVT LTD - U23109WB1945PTC012125 |
| 405 | MADURGA HARDCOKE AND FUEL MANUFACTURERS PVT. LTD. - U23101WB1991PTC053798 |
| 406 | MAHABIR COKE INDUSTRIES PVT LTD - U23101WB1992PTC056361 |
| 407 | MAHABIR FUELS (AURANGABAD) PVT LTD - U23109WB1991PTC051772 |
| 408 | MAHAKALI SOFTCOKE AND COAL TRADERS PRIVATE LIMITED - U23101WB2003PTC096202 |
| 409 | MAHALAXMI WASHERIES PRIVATE LIMITED - U23101WB2011PTC157420 |
| 410 | MAHOGANY ENTERPRISES PRIVATE LIMITED - U23209WB2000PTC092638 |
| 411 | MAMTA COAL & COKE PVT LTD - U23109WB1988PTC044825 |
| 412 | MAMTA PROJECTS PVT LTD - U23209WB1994PTC063940 |
| 413 | MANGAL CRYSTAL COKE PRIVATE LIMITED - U23109WB2005PTC106428 |
| 414 | MANN PETROCHEM PVT. LTD. - U23209WB1994PTC062695 |
| 415 | MANSA VINCOM PVT.LTD. - U23209WB1994PTC064759 |
| 416 | MAP MARKETING & MANUFACTURING COMPANY PVT LTD. - U23209WB1988PTC045691 |
| 417 | MARCUS OILS & CHEMICALS PRIVATE LIMITED - U23201WB2000PTC096173 |
| 418 | MATHURA COKE PLANT PVT LTD - U23101WB1992PTC054836 |
| 419 | MATRI OIL REFINERY PRIVATE LIMITED - U23201WB2000PTC092652 |
| 420 | MAYA FUELS PVT. LTD. - U23109WB1992PTC055811 |
| 421 | MEGHALAYA COAL SUPPLIERS PVT LTD - U23101WB1990PTC048651 |
| 422 | MEGHALAYA GASES LIMITED - U23200WB1985PLC037477 |
| 423 | MERUPRAVA PETRO CHEM PRIVATE LIMITED - U23209WB2000PTC091113 |
| 424 | METRO HARD COKE INDUSTRIES PRIVATE LIMITED - U23100WB2008PTC127016 |
| 425 | MGM REFRACTORIES PRIVATE LIMITED - U23101WB1992PTC057088 |