| 501 | APSARAS TRADE IMPEX PRIVATE LIMITED - U51392TN2004PTC054913 |
| 502 | APT FOODS PRIVATE LIMITED - U51219TN2003PTC051885 |
| 503 | APT POLYCHEM PRIVATE LIMITED - U51909TN2014PTC097875 |
| 504 | APURVA AQUA MINERALE PRIVATE LIMITED - U51101TN1999PTC043815 |
| 505 | AQ INFOCOM PRIVATE LIMITED - U51909TN2002PTC049619 |
| 506 | AQC SYSTEMS PRIVATE LIMITED - U51909TN1998PTC040372 |
| 507 | AQUA PLANET PRIVATE LIMITED - U51909TN2005PTC055120 |
| 508 | AQUASOL NEWTECH PRIVATE LIMITED - U51505TN2004PTC053014 |
| 509 | AR GEMS PRIVATE LIMITED - U51900TN2011PTC083110 |
| 510 | AR.A.S. AUTO PRIVATE LIMITED - U51103TN1993PTC025698 |
| 511 | ARAAMED DEVICES INDIA PRIVATE LIMITED - U51909TN2017PTC116723 |
| 512 | ARABI TRADING COMPANY PRIVATE LIMITED - U51900TN2010PTC076826 |
| 513 | ARAMA PETRO-CHEM KOVAI PRIVATE LIMITED - U51410TZ2003PTC010705 |
| 514 | ARASAN AUTOS (INDIA) PRIVATE LIMITED - U51909TN2005PTC055427 |
| 515 | ARASAN CHIP TECHNOLOGIES LIMITED - U51103TN1993PLC025719 |
| 516 | ARASAN IMPEX PRIVATE LIMITED - U51909TZ2017PTC029594 |
| 517 | ARASAN OOKEY ENERGISER PRIVATE LIMITED - U51909TN2005PTC056708 |
| 518 | ARAVIND INTERNATIONAL PRIVATE LIMITED - U51102TN1976PTC007077 |
| 519 | ARCH TECH BUILDING MATERIALS PRIVATE LIMITED - U51432TN2006PTC058858 |
| 520 | ARCHARD OIL IMPEX PRIVATE LIMITED - U51909TN2015PTC098673 |
| 521 | ARCHITECTURAL TECHNICAL SOLUTIONS PRIVATE LIMITED - U51909TN2009PTC073532 |
| 522 | ARCHWAY EXPORTERS PRIVATE LIMITED - U51909TN1998PTC040952 |
| 523 | ARCHWAY TECHNICAL SERVICES (OPC) PRIVATE LIMITED - U51909TN2018OPC121533 |
| 524 | ARCLITE LIGHT SCULPTURES PRIVATE LIMITED - U51101TN2009PTC073429 |
| 525 | ARCOT PADDY & RICE KALANJIAM LIMITED - U51101TN1963PLC005065 |