- Bengal Quality Metal Product PVT LTD
- BENGAL RECYCLERS & FABRICATORS PRIVATED LIMITED
- BENGAL STEEL INDUSTRIES
- Bengal Tiger Line (India) Pvt Ltd
- Berger Paints India Limited
- Berger Paints Ltd
- Bestek Loza India
- Bhagbat Marine Stores Supply
- Bhagwan Engineering Works
- Bhagwati Biscuits
- BHAGWATI ENTERPRISES( kolkata)
- Bhagwati Steel Enterprise
- BHAIRAV SALES AGENCY
- BHARAT CLEARING and FORWARDING AGENCY PVT LTD
- Bharat Fish Mate Pvt Ltd
- Bharat Heavy Electricals Limited, Kolkata
- Bharat Lub Industries Pvt Ltd
- BHARAT SHIP SUPPLIER
- BHARAT TRADING CORPORATION
- Bharati Shipyard Limited
- BHARGAWA ENTERPRISES
- Bhaskar Shrachi Alloys Ltd
- Bhattacharjee Enterprise
- BHAUMIK AND ASSOCIATES
- BHEL(Bharat Heavy Electricals Ltd.)
- Bhevin Exim
- Bhumi Aqua Farm
- BHUNIA POLYPET
- Bihani Chemical Industries Pvt Ltd
- BIJOY SURGICAL
- Bikash Engineering Corporation
- BINA INDUSTRIES
- Bina udyog Pvt Ltd
- Binit Engineering
- Binod Trading Co
- Bio-Sil Laboratoriesco.Com
- BIOBOX
- Biolab Scientific Ltd.
- Biosafe Medical India Pvt. Ltd
- Birla Corporation Ltd
- Birla Tyres kolkata
- Birla Tyres, Kolkata
- Birla Tyres, ODISHA
- Bismillah Trade International (BTI)
- Biswajit Sarkar
- BISWAS and ASSOCIATES PVT LTD
- Biswas International Trading Corporation
- BKG ELECTRO FAB
- Blue Bird Business Link
- BMA Stainless Ltd.
- BMF
- BMW Industries Ltd.
- BMWIL
- BOHRA IMPORTS PRIVATE LIMITED
- BOMBAY MARINE TRADERS
- Boroma And Sons
- BOSE ENTERPRISE
- BOSS 10 ( For RX internal use only )
- BOUWMAN MARINE SERVICE, W., B.V.
- BP ENGINEERING WORKS, Kolkata
- BRAHM ALLOYS LIMITED
- Brahmaputra Engineers
- BRG IRON & STEEL CO. (P) LTD.
- BRG Iron & Steel Co. (P)Ltd.
- Brg Iron and Steel Co Pvt Ltd
- Bridge & Roof Ltd
- Bristol Petroleum Pvt Ltd
- Britannia Chemical Industries
- Britannia Company
- BRITIKA ENTERPRISE
- British Coating & Chemical Industries
- British Steel
- Brothers Enterprises
- BRUNDABAN FLYASH BRICKS
- BURDWAN IRON & STEEL COMPANY PVT LTD
- Busilink Associates Pvt. Ltd.
- Business Edge, Kolkata
- C I Laboratories Shibpore Private Limited
- C K Plastics Ltd
- C S Dhawal & Company
- Cafe HQ
- CAL COX SYNDICATE PVT LTD
- Cal India
- Calcutta Chemicals Industries
- Calcutta Ferrous Ltd
- Calcutta Metallic Co
- Calcutta Rolls Manufacturing Co
- Calcutta Sportsboats Mfg. Pvt ltd.
- calcuuta machinc copany
- Calstar Sponge Pvt Ltd
- Camelia International
- Carbon Resources P Ltd
- CD Engineering
- CEAT SHOPPE
- Cenosphere India Pvt Ltd
- Central Mechanical Engineering Research Institute
- Century Extrusions Limited
- Century Ply Boards India Limited
- Century Plyboards
- Century Plyboards Ltd