| 2101 | ODISHA STEEL AND POWER LIMITED - U27100DL2010PLC211374 |
| 2102 | OGM IMPEX PRIVATE LIMITED - U27300DL2015PTC276542 |
| 2103 | OHIO SPONGE IRON AND POWER PRIVATE LIMITED - U27106DL2005PTC134504 |
| 2104 | OJJUS SKILLS INSTITUTES PRIVATE LIMITED - U27101DL2006PTC150698 |
| 2105 | OLDEN MATRIX PRIVATE LIMITED - U27106DL1999PTC102849 |
| 2106 | OM CONCAST PRIVATE LIMITED - U27106DL2005PTC132487 |
| 2107 | OM METATREAT INDUSTRIES PRIVATE LIMITED - U27100DL2013PTC257776 |
| 2108 | OM NAVIN STEEL FABRICATION PRIVATE LIMITED - U27209DL2007PTC166662 |
| 2109 | OM SAI FAB PRIVATE LIMITED - U27107DL2007PTC157478 |
| 2110 | OM SRI S S TUBES MANUFACTURING PRIVATE LIMITED - U27104DL1996PTC080210 |
| 2111 | OM STEEL PRIVATE LIMITED - U27310DL2009PTC195386 |
| 2112 | OM STEEL TUBES LTD - U27102DL1979PLC009770 |
| 2113 | OM UNIVERSAL PRIVATE LIMITED - U27310DL2008PTC180803 |
| 2114 | OM ZEVAR PALACE PRIVATE LIMITED - U27205DL2000PTC108615 |
| 2115 | OMEGA SPECIAL STEELS PRIVATE LIMITED - U27100DL2012PTC245032 |
| 2116 | OMKARESHWAR ENGINEERING PRIVATE LIMITED - U27101DL1983PTC015068 |
| 2117 | OMNI METAL PRIVATE LIMITED - U27204DL1992PTC047448 |
| 2118 | OMSAI UDYOG INDIA PRIVATE LIMITED - U27205DL2010PTC211475 |
| 2119 | OMSAINATH STEEL & CONCAST PRIVATE LIMITED - U27100DL2009PTC187742 |
| 2120 | ONS STEEL SOLUTIONS PRIVATE LIMITED - U27100DL2010PTC201256 |
| 2121 | OPEL ALLOYS PRIVATE LIMITED - U27107DL1999PTC099852 |
| 2122 | OPTIMAL SEALS INDIA PRIVATE LIMITED - U27104DL2015PTC275802 |
| 2123 | OPTIMIST STEELS PRIVATE LIMITED - U27106DL2005PTC133450 |
| 2124 | OPTIMUM STEELS PRIVATE LIMITED - U27103DL1992PTC051350 |
| 2125 | OPULENT ORE AND MINERALS PRIVATE LIMITED - U27107DL1996PTC079092 |