- Design Guide, Kolkata
- Desire Overseas Pvt Ltd
- Dettol India
- Development Consultants Privet Limited
- DEVKI AND SONS
- DEVKI GENERAL STORES
- Devraj Exports
- Deys Medical Group Of Co
- Dhal Engineering Co.
- Dhanbad Fuels Pvt Ltd
- DHL Worldwide Express
- Dhunseri Petrochem & Tea Ltd (Petrochem Division)
- Diach Chemicals & Pigments Pvt. Ltd
- Dibakar Ghosh
- Digi Pix Mi
- Digital Computer
- DIMENSION STEEL
- DIMENSIONS INDIA KOLKATA
- Dineshchandra R Agrawal Infracon Pvt. Ltd
- Dineshchandra R Agrawal Infracon Pvt. Ltd. (Odisha)
- Dineshchandra R. Agrawal Infracon Pvt. Ltd
- Dinsha WR Homavazir & Sons (P) Ltd.
- Dipanjan Dhara
- Dipti Enggineering Works / JM Baxi & Co
- DIS TECHNO & INFORMATION
- Divya Enterprises (WEST BENGAL)
- Divyaahar Agro Products Pvt Ltd
- DOCTOR PLUS
- Doctor Water
- Down Stream units
- Dream Polypack Pvt Ltd
- Dreanz Marketing
- DREDGING CORPORATION OF INDIA LTD
- DSR Agarbatti Manufacturing Company
- DTDC Courier & Cargo Ltd.
- DU Laboratories Limited
- Dunlop India Ltd,kolkata
- Dura Plast Extrusion Pvt Ltd
- Durga Enterprises
- Durga Enterprises ( Odisha )
- DURGA HITECH CEMENT
- DURGAPUR POLIMAR PVT.LTD
- Durgapur Polymers Pvt Ltd
- DURGAPUR PROJECTS LIMITED
- Durgapur Tubes Pvt Ltd
- DURIAN INDUSTRIES LTD.
- DUT ENTERPRISE
- Dutta Bhandar
- Dutta Enterprise
- Dynatron Services Pvt. Ltd.
- E Enco
- E-CHEM CORP
- E-SOLUTIONS and SERVICES
- E.C. BOSE & CO. PARADIP PVT. LTD.
- East India Agency
- East India Air Conditioning Co
- East India Confectioneries Ltd
- East India Holdings Private Limited
- EAST INDIA PHARMACEUTICAL WORKS LIMITED
- East Zone Trading
- Eastern Bulk Co. Ltd.
- Eastern Coalfields Ltd
- EASTERN COMPANY PVT. LTD.
- Eastern Copper Manufacturing Co. Pvt.Ltd.
- Eastern Dye Chem Pvt. Ltd.
- EASTERN ENGINEERING WORKS
- Eastern Enterprise
- EASTERN NAVIGATION PRIVATE LIMITED
- EASTERN PAINT WORKS
- Eastern Supply
- Eastland Oil Company
- Eastland Switchgears Pvt. Ltd.
- EASTSIDE EXPORTS (OPC) PRIVATE LIMITED
- ECO INDIA PROJECT
- Economic Trade Centre
- Edcons (mks) Casting P. Ltd
- Edible Agro Products Ltd
- EIH Ltd Eveready
- Ekhlas and Company
- Elbe Industrial Work
- ELCOME MARINE SERVICES PVT. LTD. (Kolkata)
- Elcorp Chemicals
- Electro Chemicals
- Electro Zavod (India) Pvt. Ltd.
- Electrosteel Castings Ltd. (Kolkata)
- Electrosteel Steels Limited
- ELEGANT COMMERCE PRIVATE LIMITED
- Elektroactivx Private Limited
- Elemental Connectors
- Ellenbarrie Gases LTD
- Ellenbarrie Industrial Gases Ltd, KOLKATA
- ELMAX PROJECTS & SERVICES
- EM Enterprises
- Emami Agrotech Ltd
- Emami Limited
- EMAMI LTD
- Emami Paper Mills Ltd(Emami Group)
- Embee Software Pvt. Ltd.
- Emcon Industries
- EMEC Private Limited