- CHILLMEK ENGINEERING PVT LTD,KOLKATA
- DANIELI INDIA LTD
- DEVELOPMENT ENGINEERING CORPORATION, BURNPUR,W.B
- EAST INDIA CONSTRUCTION COMPANY,DHANBAD
- EAST MAN CRUSHER CO PVT LTD.,KOLKATA
- EASTERN METEC PVT.LTD
- FERRO CRAFTS,W.B
- GISL LTD.(MICCO)
- HI TECH EQUIPMENTS PVT LTD,KOLKATA
- HINDUSTAN METAL REFINING WORKS PVT LTD.
- HINDUSTAN PAPER CORPORATION LTD,ASSAM
- HUMBOLDT WEDAG INDIA LTD
- INDIAN METALS AND FERRO ALLOYS LTD
- INDIANA CONVEYORS LTD,KOLKATA
- J.B.B LIME INDUSTRY,ASSAM
- JAS ENGINEERS,DURGAPUR
- LARSEN TOUBRO LTD.
- MC NALLY BHARAT ENGINEERING CO.LTD
- METAL ENGINEERING AND TREATMENT CO PVT LTD
- MICROMEG(INDIA)PVT.LTD,KOLKATA
- NAVEEN INDUSTRIAL PROJECT(P)LTD,DELHI
- NIRDHOOM INDHAN PVT.LTD,JHARKHAND
- POWER MAX (INDIA) PVT.LTD
- S.K SAMANTA CO.PVT.LTD(KOLKATA)
- SCHENCK PROCESS INDIA LTD
- SHRI BALAJI EARTHMOVERS,SATNA,MP
- SPECTRUM COAL WASHERIES LTD
- STOLLBERG INDIA PVT LTD,DURGAPUR
- SUR IRON AND STEEL CO PVT LTD(SISCO)
- SYNERGY INDUSTRIAL SERVICES PVT.LTD
- THE JAYSHREE CHEMICALS FERTILIZERS LTD,KOLKATA
- VOLTAS LIMITED
