| 1 | NATIONAL BOOK AGENCY PVT LTD. | Kolkata | Kolkata | 12A BANKIM CHATTERJEE STREET |  | | | | |
| 2 | NATIONAL BOOK HOUSE | Maldah | Malda Sadar | Rathbari, Malda. | | | | | |
| 3 | NATIONAL CLEANING SERVICE | South 24 Parganas | Baruipur | C/O-M/S BAAZAR STYLE RETAIL PVT. LTD., 70, KULPI ROAD | | | | | |
| 4 | NATIONAL ELECTRIC | Howrah | Uluberia | Vill+P.O- Nabagram, Shyampur, Howrah-711315 Worksite : WBSEDCL( formerly WBSEB ), Uluberia, Howrah | | | | | |
| 5 | NATIONAL ENGINEERING CO. | Purba Medinipur | Haldia | HALDIA INDUSTRIAL ESTATE, DURGACHAK, HALDIA | | | | | |
| 6 | NATIONAL ENGINEERING INDUSTRIES LTD. | Kolkata | Kolkata | 2,BEER PARA LANE,DUMDUM | | | | | |
| 7 | NATIONAL ENTERPRISE | Murshidabad | Jangipur | Vill-Kanchantala, PO- Dhulian | | | | | |
| 8 | NATIONAL FOOT WEAR | Paschim Bardhaman | Durgapur | STATION ROAD PANAGARBAZAR | | | | | |
| 9 | NATIONAL GLASS WORKS | Paschim Bardhaman | Asansol | Sataisha, Gopalka Road. P.O-Sitarampur | | | | | |
| 10 | NATIONAL HIGHWAY DIVISION X | Alipurduar | Alipurduar | Alipurduar | | | | | |
| 11 | NATIONAL MOTORS. | Maldah | Malda Sadar | NH-34, Gabgachi, Jadupur, Malda. | | | | | |
| 12 | NATIONAL NURSHING HOME | Nadia | Krishnanagar Sadar | MIRA KALIGANJ ROAD MORE | | | | | |
| 13 | NATIONAL REFRACTORIES (PROP.SNOWTEX UDYOG LTD) | Paschim Bardhaman | Asansol | SALANPUR | | | | | |
| 14 | NATIONAL RICE MILL | Hooghly | Arambagh | Kanpur Bairakanpur Arambagh | | | | | |
| 15 | NATIONAL SECURITY & INFORMATION SERVICE | Nadia | Kalyani | T-3/SG, Industrial Estate | | | | | |
| 16 | NATIONAL SECURITY SERVICE | Coochbehar | Coochbehar Sadar | SONAKRI KAKRI BARI, P.O. KHARIJA KAKRI BARI | | | | | |
| 17 | NATIONAL SECURITY SERVICES | North 24 Parganas | Barasat | vill uttar jojra,p.o rohanda,p.s madhyamgram,pin 700135 | | | | | |
| 18 | NATIONAL STAR SECURITY SOLUTION AGENCY | South 24 Parganas | Baruipur | ATGHARA,BARUIPUR,KOL-700144 | | | | | |
| 19 | NATIONAL THERMAL POWER CORPORATION LTD. | Murshidabad | Jangipur | Farakka Super Thermal Power Profects Farakka | | | | | |
| 20 | NATNA GP | Nadia | Tehatta | NATNA | | | | | |
| 21 | NATRAJ SAW MILL | Purba Bardhaman | Bardhaman (South) | DALUIBAZAR, RASULPUR | | | | | |
| 22 | N. A. TREDING | South 24 Parganas | Baruipur | PLOT-124, ZONE-2, KLC, P.O.-KANTATALA | | | | | |
| 23 | NATURE CURE AND YOGA CENTRE | South 24 Parganas | Alipore | KONCHOWKI , D.H. ROAD | | | | | |
| 24 | NATURE DAIRY | Hooghly | Chinsurah | Rohia | | | | | |
| 25 | NATURE VIEW BAR CUM RESTURANT | Hooghly | Serampore | 179 A/D N.T ROAD II (W 22) BAIDYABATI | | | | | |
| 26 | NAVAL ARMAMENT INSPECTORATE GUN & SHELL FACTORY | Kolkata | | COSSIPORE, | | | | | |
| 27 | NAVANEET UDYOG | Maldah | Malda Sadar | 110/107/32 Kotabari , NH-34 | | | | | |
| 28 | NAV BHARAT INFRASTRUCTURE | Howrah | Uluberia | CHANDRAPUR,BAGNAN,HOWRAH | | | | | |
| 29 | NAVIN COLD STORAGE OVT LTD | Paschim Medinipur | Medinipur Sadar | DHADIKA | | | | | |
| 30 | NAVIN SPACE HOUSING LTD. | North 24 Parganas | Barasat | 176, BADU ROAD, MADHYAMGRAM | | | | | |
| 31 | NAVKETAN NURSING HOME | North 24 Parganas | Bidhannagar | 193 BLOCK IB SEC III SALT LAKE | | | | | |
| 32 | NAVKETAN NURSING HOMECOLOMBIA ASIA HOSPITAL | North 24 Parganas | Bidhannagar | 193,BLOCK IB,SECTOR III SALT LAKE | | | | | |
| 33 | NAVKETAN NURSING HOME PVT. LTD. (A UNIT OF COLUMBIA ASIA HOSPITAL) | North 24 Parganas | Bidhannagar | IB-193, Sec-III, Saltlake, Kolkata-700091 | | | | | |
| 34 | NAVYUG AGRO INDUSTRIES PVT. LTD. | Purba Bardhaman | Bardhaman (South) | Masunda Nabagram | | | | | |
| 35 | NAXALBARI FLOUR & RICE MILL (P) LTD. | Darjeeling | Siliguri | DHAKNAJOTE,N.H.- 31C, P.O.NAXALBARI | | | | | |
| 36 | NAXALBARI FLOUR & RICE MILL PRIVATE LIMITED | Darjeeling | | SOUTH RATHKHOLA, DHAKNA JOTE, NH-31C, DARJEELING, PO- NAKSALBARI S.O, PS- KHARIBARI, Pin- 734429 | | | | | |
| 37 | NAXALBARI FLOUR RICE MILL PVT. LTD. | Darjeeling | Darjeeling Sadar | Rathkhola | | | | | |
| 38 | NAXALBARI SERVICE STATION | Darjeeling | Siliguri | Satvaiya | | | | | |
| 39 | NAYAK BABA FREEZING ENTERPRISE PVT. LTD. | Purba Bardhaman | | VILL-SUKANTAPALLI, P.O.-SOMAIPUR, P.S.-AUSHGRAM, DIST-BURDWAN | | | | | |
| 40 | NAYAN MONI AGRO PRODUCT | Bankura | Bankura Sadar | Bijoy Jogashram Pally | | | | | |
