| 51 | ASSOCIATED BUILDING SOCIETY LTD - U40103WB1947PLC015749 |
| 52 | ASTA ELECTRICAL AND ELECTRONICS PRIVATE LIMITED - U40109WB2009PTC134543 |
| 53 | ASTECH FLYASH PRIVATE LIMITED - U40100WB2016PTC218405 |
| 54 | ASTONFIELD BIOMASS (GANGARAMPUR) PRIVATE LIMITED - U40106WB2008PTC122215 |
| 55 | ATEN ENERGY INFRASTRUCTURE PRIVATE LIMITED - U40101WB2009PTC138302 |
| 56 | ATHA POWER LIMITED - U40101WB2011PLC159894 |
| 57 | AVANT GARDE RE-ENERGY PRIVATE LIMITED - U40103WB1985PTC038515 |
| 58 | AYYAPPA HYDRO POWER LIMITED - U40100WB2005PLC116955 |
| 59 | B J POWERTEL SOLUTIONS LIMITED - U40101WB2004PLC100649 |
| 60 | B R POWER LTD - U40106WB1995PLC073567 |
| 61 | BAAHUBALI ENERGY LIMITED - U40105WB2009PLC140042 |
| 62 | BAKCHACHU RATEYCHU HYDRO ELECTRIC PROJECT PRIVATE LIMITED - U40101WB2013PTC192734 |
| 63 | BAKRESHWAR POWER GENERATION COMPANY LTD - U40102WB1996PLC077216 |
| 64 | BALAGARH POWER COMPANY LIMITED - U40103WB1994PLC065395 |
| 65 | BALCHAND TRACOM PRIVATE LIMITED - U40300WB2010PTC147507 |
| 66 | BARBRIK ENERGY PRIVATE LIMITED - U40300WB2010PTC152749 |
| 67 | BARGARH GREEN POWER GENERATING COMPANY LIMITED - U40102WB2010PLC156029 |
| 68 | BARISAL ELECTRIC SUPPLY CO LTD - U40100WB1933PLC007717 |
| 69 | BARLOW & CO PVT LTD - U40109WB1917PTC007751 |
| 70 | BASSS INFRA PRIVATE LIMITED - U40101WB2010PTC146319 |
| 71 | BATELI TEA CO LTD - L40100WB1919PLC003227 |
| 72 | BEANSTALK ENERGY PRIVATE LIMITED - U40300WB2013PTC198546 |
| 73 | BEARDSELL EQUIPMENT PRIVATE LIMITED - U40100WB1994PTC062981 |
| 74 | BENGAL OXYGEN CO PRIVATE LIMITED - U40300WB2015PTC206811 |
| 75 | BENGAL POWERALLOYS PRIVATE LIMITED - U40105WB2009PTC139344 |