• ABC Infra Equipments Pvt. Ltd. (Thane),
• Abhinav Constructions Pvt. Ltd., (Korba),
• Kumar Cargo Solutions (Korba),
• Athena Chhattisgarh Power Ltd. (Singhaitarai, Janjgir – Champa),
• Axon Constructions Pvt. Ltd. (Uchhpinda, Janjgir – Champa),
• Bhawani Erectors Pvt. Ltd. (Diff. Project Sites),
• Bharat Heavy Electricals Ltd. (Diff. Project Sites),
• Black Diamond Equipments Pvt. Ltd. (Korba),
• Chennai Radha Engg. Works Pvt. Ltd. (BALCO Site),
• Ciscons Construction Pvt. Ltd. (BALCO Site),
• Chhattisgarh State Power Generation Co. Ltd. (KTPS Korba East),
• DSPM Korba East,
• Hi-Tech Power & Steel Limited ,
• HTPS Korba West, HBHPS Bango),
• Central Workshop SECL (Korba),
• Central Workshop SECL (Gevra),
• DB Power Ltd. (Baradarha, Janjgir – Champa),
• DV Projects Ltd. (Naya Raipur),
• Empowertrans Pvt. Ltd. (Bhubaneshwar),
• Gemini Equipments & Rentals Pvt. Ltd. (Mumbai),
• GMR Chhattisgarh Energy Ltd. (Raikheda, Tilda, Raipur),
• Indfab Projects Pvt. Ltd, (Angul),
• Indian Explosives Ltd., (Gevra),
• Indwell Constructions Pvt. Ltd. (Different Project Sites),
• Kaypee Infrastructures (Different Project Sites),
• Kone Elevators (I) Pvt. Ltd. (Different Plant Sites),
• Larsen & Toubro Ltd. (Different Project Sites in C.G.),
• Lanco – Amarkantak Power Ltd. (Pathadi, Korba),
• Lizmontagens India Pvt. Ltd. (Mumbai),
• Loyal Safe Work (New Delhi),
• Macawber Beekay Pvt. Ltd. (Different Project Sites),
• National Thermal Power Corporation (Jamnipali, Korba),
• Nandan Steel & Power Limited ,
• Nu Calcutta Construction Co. (NMDC Project Jagdalpur),
• Offshore Infrastructures Ltd. (Different Project Sites),
• Power Mech Projects Ltd. (Different Project Sites),
• Power Max (I) Ltd., (MTTPP Project Site Marwa),
• Prasad & Company (PW) Works (NMDC Project Site Jagdalpur),
• Premier Plant Services (Different Project Sites),
• Reach International (New Delhi),
• RKM Powergen Pvt. Ltd. (Uchhpinda, Janjgir – Champa),
• Sanghvi Movers Ltd. (Pune),
• Sepco Electric Power Construction Corporation (KSK Mahanadi Power Co. Ltd. Project Site),
• Akaltara and 1200 MW CPP Balco Plant),
• Shree Vijaya Engg. & Constn. Pvt. Ltd. (Navi Mumbai),
• Sokeo Power Pvt. Ltd. (Different Project Sites),
• Sunil Hi-Tech Engineers Ltd. (Different Project Sites),
• SV Power Pvt. Ltd. (Vill : Rekni, Korba),
• Thejo Engineering Ltd. (Different TPP Sites),
• Usha Fuels Private Limited ,
• Voltech O&M Services Pvt. Ltd. (Balco Site, Korba).
