| 401 | SWATHI BOOKS BUREAU PRIVATE LIMITED - U73100TN1988PTC015486 |
| 402 | SYNECTIX ENCLOSURE SYSTEMS PRIVATE LIMITED - U73100TN2004PTC053845 |
| 403 | SYNERGY RESEARCH CENTRE PRIVATE LIMITED - U73100TN1997PTC038938 |
| 404 | SYNORBS BIOSOLUTIONS PRIVATE LIMITED - U73100TN2016PTC103592 |
| 405 | TAC RESOURCES (INDIA) PRIVATE LIMITED - U73100TN1998PTC040076 |
| 406 | TAMIL NADU ACADEMY - U73100TN1997NPL038073 |
| 407 | TAMILNADU INSTITUTE OF INFORMATION TECHN OLOGY - U73100TN1998NPL039955 |
| 408 | TANU SAFETY & HEALTH RESEARCH INSTITUTE PRIVATE LIMITED - U73100TN2006PTC061393 |
| 409 | TAPP SEMICONDUCTOR INDIA PRIVATE LIMITED - U73100TN2006PTC061454 |
| 410 | TBW INNOVATIVE SOLUTIONS PRIVATE LIMITED - U73200TN2017PTC119096 |
| 411 | TEJAS INNOVATIVE SOLUTIONS PRIVATE LIMITED - U73100TN2010PTC075952 |
| 412 | TENITH INNOVATIONS (OPC) PRIVATE LIMITED - U73100TN2017OPC114955 |
| 413 | TEST & RESEARCH INDIA PRIVATE LIMITED - U73100TN2009PTC071268 |
| 414 | THANDESH ADVANCED RESEARCH LABORATORIES PRIVATE LIMITED - U73200TN2017PTC120201 |
| 415 | THE CHINTADRIPET SECONDARY SCHOOL ASSOCIATION MADRAS LIMITED - U73100TN1913NPL000336 |
| 416 | THERAPUCES BIOTECH INDIA PRIVATE LIMITED - U73100TN2006PTC059959 |
| 417 | THINQSTER INNOVATION LAB PRIVATE LIMITED - U73200TN2012PTC084595 |
| 418 | THIRUMAGAL COMPUTECH PRIVATE LIMITED - U73100TN1996PTC034859 |
| 419 | THIRUVANNAMALAI COMPUTER EDUCATION PRIVA TE LIMITED - U73100TN1998PTC040093 |
| 420 | THULASI CRITICAL CARE AND RESEARCH CENTR E PRIVATE LIMITED - U73100TZ1988PTC002249 |
| 421 | TOLONG INFOTECH PRIVATE LIMITED - U73100TN1998PTC040442 |
| 422 | TRADITIONAL RESEARCH ENDEAVOR ENTREPRENEUR PRIVATE LIMITED - U73100TN2013PTC093869 |
| 423 | TRANS STELLAR JOURNAL PUBLICATIONS AND RESEARCH CONSULTANCY PRIVATE LIMITED - U73100TN2011PTC081193 |
| 424 | TRICHY RESEARCH INSTITUTE OF BIOTECHNOLOGY PRIVATE LIMITED - U73200TN2017PTC119075 |
| 425 | TRIDENT INNOVATION PRIVATE LIMITED - U73100TN2010PTC075456 |