- AP TRANSCO – VIJAYAWADA
- TS TRANSCO - HYDERABAD
- KERALA STATE ELECTRICITY BOARD LTD - Kerala.
- HVPNL – HARYANA
- JUSNL – RANCHI
- TANTRANSCO - TAMILNADU
- TANGEDCO - TAMILNADU.
- TSSPDCL-Hyderabad, Telangana.
- TSNPDCL-Warangal, Telangana.
- APSPDCL-Tirupathi, Andhra Pradesh.
- APEPDCL-Visakhapatnam, Andhra Pradesh.
- MPMKVVCL-Bhopal, Madhya Pradesh.
- MPPKVVCL-Indore, Madhya Pradesh.
- MPPKVVCL-Jabalpur, Madhya Pradesh.
- MSEDCL- Mumbai, Maharashtra.
- CESCOM-Mysore, Karnataka.
- UGVCL-Mehsana, Gujarat.
- DGVCL-Surat, Gujarat.
- OPTCL-Bhubaneswar.
- KSEB-KERALA
- Suzlon Wind Energy Ltd, Pune, Maharashtra.
- Axis Energy Ventures Ltd, Hyderabad, Telangana
- RAS GreenPower (P) Ltd, Hyderabad, Telangana
- Hatch Power Infra (P) Ltd, Maharashtra.
- Bharat Heavy Electricals Limited (BHEL)-Bangalore
- Medha servo - Hyderabad
- L&T Engineering & Construction Co Ltd, CHENNAI.
- Jindal Steel & Power Ltd, Raigarh,CHATTISGARH.
- Gupta Power & Infrastructure Ltd, BHUBANESWAR.
- Stardelta Transformers Ltd, BHOPAL.
- Bharat Electrical Contractors &Mfrs (P) Ltd, MAHARASHTRA.
- Suzlon Wind Energy Ltd, PUNE.
- Ramky Infrastructures Ltd, HYDERABAD.
- Viswanath Projects Ltd, HYDERABAD.
- Pravin Electricals (P) Ltd, MUMBAI.
- Hitech Construction Group, MUMBAI.
- ShirdiSai Electricals Ltd, HYDERABAD.
- Laxmi Transmissions, HYDERABAD.
- JayashreeElectromech (P) Ltd, PUNE.
- Laser Power& Infra (P) Ltd, KOLKATA.
- Bhagalpur Electricity Distribution Company Pvt Ltd, KOLKATA.
- Shrushti ContechPvt Ltd. -HYDERABAD
- M/s S.K Mohapatra. - CUTTACK
- SOUTH EASTERN COAL FIELDS LTD, Chattisgarh.
- SINGARENI COLLIERIES COMPANY LTD, Kothagudem.
- DIRECTORATE GENERAL OF MINES SAFETY, Dhanbad, Jharkhand.
- SOUTH CENTRAL RAILWAY, Secunderabad.