| Tamilnadu Agricultural | Coimbatore |
| Taj Bengal Hotel | Calcutta |
| Adani Port | Mundra |
| M.P. Water Pollution Control Board | Bhopal |
| Rishi Roop Rubber International | Ankleshwar |
| Vikash Export | Kotharia |
| HMT Ltd. | Aurangabad |
| Space Application Centre | Ahmedabad |
| ISRO | Nagarcoil |
| K. H. Leather | Mandva |
| Star Industries | Kuchaman City |
| Unipon India | Vapi |
| Tudor India Ltd. | Prantij |
| Shiv Industries Ltd. | Indrad |
| Madhumilan Inds. | Indore |
| Sargam Construction | Surat |
| New-S-Chem Starch Ltd. | Savli |
| Jayshree Insulator | Kalol |
| Unimark Remedies Ltd. | Ahmedabad |
| Dessan Agro Tech. | Dhule |
| Parekh Platinum Ltd. | Bhat |
| Ramsons Inds. Ltd. | Gurgaon |
| Malhotra Shaving Products | Hyderabad |
| Escort JCB Ltd. | Ballabgarh |
| Utsav Overseas Ltd. | Jaigaon |
| Rubi Surgical & Allied Products | Jalgaon |
| Bharat Forge | Pune |
| Western Floc | Ahmedabad |
| Virat Crane Agri-Tech Ltd. | Berhampur |
| Gowthami Construction & Fisheries Ltd. | Vishakhapatnam |
| Nicco Agro Oil Products (p) Ltd. | Guntar |
| Hema Engg. Inds. Ltd. | Gurgaon |
| Sterling Agro Inds. Ltd. | Malanpur |
| Honda Siel Power Products Ltd. | Noida |
| Hero Honda Motors Ltd. | Gurgaon / Dharuhera |
| Firmenich Aromatics | Daman |
| Mukat Pipes Ltd. | Baramati |
| Kadar Exports | Bhimavaram |
| Surya Roshni Ltd. | Bahadurgarh |
| Godrej Agrovet Ltd. | Goa |
| Costal Trawlers Ltd. | Visakhapatnam |
| Sameer Chemcon Engineers | Mumbai |
| Vamshi Export | Barabanki |
| Jatan Constructions Pvt. Ltd. | Ahmedabad |
| Waste Encare (I) Pvt. Ltd. | Khed |
| Janta Glass Works | Gavasad |
| Tejaswi Enviro Tech. | Karimnagar |
| HEG Ltd. | Mandeep |
| Pooja Forge Ltd. | Faridabad |
| Hindalco Industries Ltd. | Silvassa |
| Synergie Ecosolution Pvt. Ltd. | Raigad |
| Wockhardt Research Centre | Aurangabad |
| Sandoz Pvt. Ltd. | Digha |
| Skansska (I) Engineering | Mumbai |
| Lapro Herbals Pvt. Ltd. | Panipat |
| Japro Engineering | Bumihat |
| Khaitan (I) | Kolkata |
| Environmental Consulting Engineers | Kolkata |
| Shanmugha Research Academy | Thanjavur |
| Lakshmiwadi Mines & Minerals | Kutch |
| Bhagwati Enviro Care | Ahmedabad |
| Detox Corp. | Kutch |
| ANAND Enterprise | Ahmedabad |
| The Hutti Gold Mines Co. | Hutti (Via Raichur) |
| Deesan Agro-Tech Ltd. | Dhulia |
| A. D. Mehta & Co. | Bhuj |
| Kamal Envirotech Pvt. Ltd. | New Delhi |
| M/s. Revolve Enginees Pvt. Ltd. | Hyderabad |
| M/s. GETP Systems Pvt. Ltd. | Aundh (Pune) |
| Endurance Technologies Pvt Ltd. | Chakan, Dist: Khed (Through : Enviro Tech, Aurangabad) |
| Sunil Hightech Engineers Ltd. | Dist. : Parbhani (Through: Sai Enviro Engineers Pvt Ltd. – Hyderabad) |
| Carpet International | Bhadohi, (U.P.) |
| Mulox Sacks Pvt. Ltd. (Technocraft Inds.) | Murbad, Dist.: Thane |
| Lanxess India Pvt. Ltd. | Jhagadia (Through : Aquachem Enviro Engineers Pvt. Ltd. -Mumbai) |
| AIA Engineering Ltd. (Unit-7) | Moraiya, Tal. : Sanand |
| JKCEM Ltd. | Bagalkot, Karnataka (Through : Aqura Labs Pvt. Ltd. – Jaipur) |
| Epitome Components Ltd. | Supa, (Dist. : Ahmednagar) |
| Penault Nissan Automotive India Pvt Ltd. | Kanchepuram (T.N.) (Through : Doshion Ltd.) |
| Ramky Enviro Engineers Ltd. | Hyderabad (Jalandhar-CETP & Export to Kenya) |
| Neel Operations | Aurangabad, (M.S.) |
| Cera Sanitaryware Ltd. | Kadi, Dist: Mehsana |
| Clean Science & Technology Pvt. Ltd. | Pune |
| Vishuddha Envirotech | Mahim (Mumbai) |
| Enviro Services Pvt. Ltd. | Chennai |
| East India Commercial Co. Ltd. | Eluru (AP) |
| Enpro Enviro Tech & Engineers Pvt Ltd. | Surat |
| KEC International | Mumbai |
| Peacock Aqua Engineers | Hyderabad |
| Hyderabad Integrated MSW Ltd. (Subsidiary of REEL) | Hyderabad |
| Sharda Construction & Corp. Pvt. Ltd. | Nanded, (MS) |
| M.N. Hussen & Co. (GE India) | Bangalore |
| Telcon Construction Equipments Co. Ltd. (SIMA) | W. Midnapur (W.B.) |
| Sombansi Enviro Engg. Pvt. Ltd. | Gaziabad (U.P.) |
| Techline Green Pvt. Ltd. | Bangalore |
| Watreat Engineers | Kolkata |
