| 1 | TATA BRICK FIELD (UNIT-II) | Paschim Medinipur | Kharagpur | Mirzapur, Sonakonia, Dantan |  | | | | |
| 2 | TATA CAPITAL FINANCIAL SERVICES LTD. | Paschim Bardhaman | Durgapur | CITY PLAZA BUILDING, CITY CENTRE | | | | | |
| 3 | TATA CHEMICALS LIMITED | Purba Medinipur | Haldia | DURGACHAK,HALDIA, PURBA MEDINIPUR, 721602 | | | | | |
| 4 | TATA COMMUNICATIONS PAYMENT SOLUTIONS LIMITED | Kolkata | Kolkata | VSB, 1/18, CIT Schem, VII M, Ultadanga, Kolkata-700054 | | | | | |
| 5 | TATA COMMUNICATIONS TRANSFORMATION SERVICES LTD | Kolkata | Kolkata | VSB Building, 1/18, CIT Scheme VIIM, Ultadanga, Kolkata -700054 | | | | | |
| 6 | TATA CONSULTANCY SERVICE LTD | North 24 Parganas | Barasat | Candor Building, SEZ - INFOSPACE, NEW TOWN, RAJARHAT | | | | | |
| 7 | TATA CONSULTANCY SERVICES | North 24 Parganas | Bidhannagar | SDF, 1st and 3rd Floor, Sector-V, Salt Lake | | | | | |
| 8 | TATA CONSULTANCY SERVICES LIMITED | North 24 Parganas | Bidhannagar | Infinity Benchmark, Sector-V, Salt Lake | | | | | |
| 9 | TATA CONSULTANCY SERVICES LIMITED | Kolkata | Kolkata | CAMAC STREET, KOLKATA | | | | | |
| 10 | TATA CONSULTANCY SERVICES LTD , KOLKATA | North 24 Parganas | Barasat | ECOSPACE, NEW TOWN - RAJARHAT | | | | | |
| 11 | TATA CONSULTING ENGINEERS LTD. | North 24 Parganas | Bidhannagar | Plot No. JC 30/1, Sector - III, Salt Lake, Kolkata - 700106 | | | | | |
| 12 | TATA EYE PLUS (KARUNA MANAGEMENT SERVICES LTD.) | North 24 Parganas | Barrackpore | 40, Barasat Road, P.O. Sodepur | | | | | |
| 13 | TATAHITACHICONS.MACH. COM. PVT. LTD. | Paschim Medinipur | Kharagpur | RUPNARAYANPUR | | | | | |
| 14 | TATA INTERACTIVE SYSTEMS A DIVISION OF TATA INDUSTRIES LTD. | North 24 Parganas | Barasat | Unitech Hitech Structures Ltd. IT/ITES SEZ, Tower-A2, Block DH, Plot DH-01, DH-02, DH-03, DH 03/1, AA-I, New Town, Kol-156 | | | | | |
| 15 | TATA INTERACTIVE SYSTEMS, UNITECH HITECH STRUCTURES LTD | North 24 Parganas | Barasat | IT/ITES SEZ Tower A II Block A Ground Floor Plot no DH1 DH2 DH3 DH3/1 Block DH Action Area I New Town Kolkata 700156 | | | | | |
| 16 | TATA MATALIKS LTD. | Paschim Medinipur | Kharagpur | Gokulpur Kharagpur | | | | | |
| 17 | TATA MEDICAL CENTRE TRUST | North 24 Parganas | Barasat | 14 MAR ( EW ) , New Town , Rajarhat , PS - New Town , Kolkata - 700156 | | | | | |
| 18 | TATA METALIKS DI PIPES | Paschim Medinipur | Kharagpur | KHARAGPUR | | | | | |
| 19 | TATA METALIKS LIMITED | Paschim Medinipur | Kharagpur | Mahespur, PS Kharagpur | | | | | |
| 20 | TATA METALIKS LIMITED (DI PIPE DIVISION) | Paschim Medinipur | | TATA METALIKS ROAD, Gokulpur, Kharagpur (Local), Samraipur, Medinipore (W), 721301 | | | | | |
| 21 | TATAMETALIKS LTD | Paschim Medinipur | Kharagpur | KHARAGPUR | | | | | |
| 22 | TATA MOTORES | Jalpaiguri | Jalpaiguri Sadar | SIRISH TALA KADAMTALA JALPAIGURI | | | | | |
| 23 | TATA MOTORS | Jalpaiguri | Jalpaiguri Sadar | UKILPARA | | | | | |
| 24 | TATA MOTORS LIMITED | Kolkata | Kolkata | Rene Tower, 2nd, 3rd & 4th floor, 1842 Rajdanga Main Road, East Kolkata Township | | | | | |
| 25 | TATA POWER CO LTD. | Purba Medinipur | Haldia | Haldia | | | | | |
| 26 | TATA POWER COMPANY LTD. | Purba Medinipur | Haldia | Haldia | | | | | |
| 27 | TATA STARBUCKS PVT LTD | North 24 Parganas | Bidhannagar | G1,GR FLOOT,CITY CENTRE,SECTOR I,SALTLAKE,KOLKATA | | | | | |
| 28 | TATA STEEL LIMITED | Kolkata | Kolkata | 43,JAWAHARLAL NEHRU ROAD TATA CENTRE KOLKATA-700071 | | | | | |
| 29 | TATA STEEL LIMITED BEARINGS DIVISION | Paschim Medinipur | Kharagpur | NIMPURA INDUSTRIAL ESTATE, P.O.- RAKHAJUNGLE,KHARAGPUR, 721301 | | | | | |
| 30 | TATA STEEL LIMITED, HOOGHLY METCOKE DIVISION | Purba Medinipur | | Patikhali, Haldia, Haldia, Haldia Oil Refinery, Medinipore (E), 721606 | | | | | |
| 31 | TATHYA | North 24 Parganas | Barrackpore | WORKPLACE: SARASWATY PRESS LTD, 11 B.T. ROAD, | | | | | |
| 32 | TAZ BAKERY | Bankura | Khatra | JAGANNATHPUR RASTA PARA | | | | | |
| 33 | TBTBYBYBHYN | South 24 Parganas | Kakdwip | h jmjmjmunny night h h | | | | | |
| 34 | TBW | Purba Medinipur | Haldia | Vill: Areakhali | | | | | |
| 35 | TCG FACILITIES MANAGEMENT SERVICES PVT. LTD. | North 24 Parganas | Bidhannagar | Bengal Intelligent Park, Plot - A2M2N2, Block - EP & GP, Sector - V, Salt Lake, | | | | | |
| 36 | TCG LIFESCIENCES PRIVATE LIMITED | North 24 Parganas | Bidhannagar | Block-BN, Plot-7, Sector-V, Salt Lake, kolkata-91 | | | | | |
| 37 | TCNS CLOTHING CO. LTD. | North 24 Parganas | Bidhannagar | A-217/218, City Centre, 2nd Floor, Block DC, Sector-I, Saltlake, Kolkata-700064 | | | | | |
| 38 | T.C. PLYWOOD WORKS | North 24 Parganas | Barasat | VILL + P.O :- BALISA | | | | | |
| 39 | TDGG | South 24 Parganas | Alipore | gghv | | | | | |
| 40 | TDK INDIA PRIVATE LIMITED | Nadia | | WBIDC GROWTH CENTRE,PLOT NO-1,KULIA KANCHRAPARA ROAD,KALYANI,NADIA,PIN-741251 | | | | | |
