| AAI | Engineering | Government Body | 1 |
| ABB INDIA LIMITED | Engineering | Private | 2 |
| ACRASTYLE POWER INDIA LTD | Engineering | Private | 3 |
| ADANI POWER | Power | Private | 2 |
| ADEPTIA INDIA PVT. LTD. | Engineering | Private | 3 |
| ADVANCE POWER CONTROL LIMITED | Energy | Private | 3 |
| AEGCL | Power | Government Body | 3 |
| AGNI AVIATION | Engineering | Private | 2 |
| AIR INDIA ENGINEERING SERVICES LTD | Engineering | Government Body | 2 |
| AIRPORT AUTHORITY OF INDIA | Engineering | Public Sector Unit (PSU) | 3 |
| ALLSOFT SOLUTIONS, MOHALI | IT | Private | 1 |
| ALTTC | Engineering | Public Limited Company | 10 |
| AMARARAJA BATTERIES | Power | Private | 1 |
| AMBUJA CEMENT LTD. | Manufacturing | Private | 1 |
| AMPC LTD | Others | Private | 2 |
| ANDREW YULE & CO LTD | Manufacturing | Private | 6 |
| ANDRITZ HYDRO PVT LTD | Manufacturing | Private | 1 |
| APGENCO | Energy | Government Body | 9 |
| APTRANSCO | Energy | Public Limited Company | 4 |
| ARYA FILAMENT PVT. LTD. | Manufacturing | Private | 1 |
| ASSAM ELECTRICITY GRID CORPORATION LTD. | Others | Public Sector Unit (PSU) | 4 |
| BANNARI AMMAN SUGARS | Manufacturing | Private | 2 |
| BARC | Energy | Public Central | 1 |
| BENARA AUTO PVT. LTD | Automobiles | Private | 1 |
| BETA COMPUTRONICS | Engineering | Private | 1 |
| BHAKRA BEAS MANAGEMENT BOARD | Engineering | Government Body | 1 |
| BHARAT ELECTRONICS | Energy | Government Body | 19 |
| BHARAT PUMPS AND COMPRESSORS LTD. | Engineering | Public Sector Unit (PSU) | 6 |
| BHARAT SANCHAR NIGAM LIMITED | Telecom | Government Body | 1 |
| BHARATIYA NABHIKIYA VIDYUT NIGAM LIMITED | Energy | Government Body | 1 |
| BHAVINI KALPAKKAM | Energy | Government Body | 12 |
| BHEL | Power | Government Body | 35 |
| BHILAI STEEL PLANT | Manufacturing | Public Sector Unit (PSU) | 9 |
| BHUSHAN STEEL LIMITED | Manufacturing | Private | 1 |
| BOKARO STEEL LIMITED | Basic Metal and Steel | Public Limited Company | 5 |
| BPL MEDICAL TECHNOLOGIES PVT. LTD. | Others | Private | 1 |
| BRAKES INDIA PVT LIMITED | Manufacturing | Private | 1 |
| BSES RAJDHANI POWER LTD | Power | Government Body | 1 |
| BSNL | Telecom | Government Body | 51 |
| BSPTCL, PATNA | Engineering | Private | 1 |
| BYJU APPLICATION | Education | Private | 1 |
| CADENCE | Design | Private | 1 |
| CADILA HEALTH CARE LIMITED | Healthcare | Private | 1 |
| CALCUTTA ELECTRIC SUPPLY CORPORATION | Power | Public Sector Unit (PSU) | 5 |
| CAREWELL INDUSTRIES | Manufacturing | Private | 1 |
| CARGO MOTORS PVT. LTD. | Engineering | Private | 2 |
| CARRIAGE AND WAGON REPAIR WORKSHOP | Others | Government Body | 2 |
| CARRIAGE REPAIR WORKSHOP | Engineering | Government Body | 2 |
| CENTRAL COAL FIELDS | Mining | Public Limited Company | 2 |
| CENTRAL TOOL ROOM AND TRAINING CENTRE | Engineering | Government Body | 1 |
| CHATTISGARH POWER TRANSMISSION CORPORATION | Energy | Government Body | 2 |
| CHENNAI METRO RAIL LIMITED | Engineering | Government Body | 22 |
| CIS ELECTRICALS PVT. LTD. | Engineering | Private | 1 |
| CIVICA | IT | Private | 1 |
| CODE BIND TECHNOLOGIES | IT | Private | 11 |
| CONSUL NEOWATT POWER SOLUTIONS LTD. | Engineering | Private | 1 |
| CROMPTON GREAVES LIMITED | Manufacturing | Private | 5 |
| CSEB | Power | Public Sector Unit (PSU) | 4 |
| CSPDCL | Power | Public | 2 |
| CURA HEALTHCARE PVT. LTD. | Healthcare | Private | 1 |
| DAMODAR VALLEY CORPORATION | Energy | Government Body | 12 |
| DELHI TRANSCO LTD. | Power | Government Body | 1 |
| DHARIWAL INFRASTRUCTURE | Engineering | Private | 1 |
| DIESEL LOCOMOTIVE WORKS | Transport | Public Limited Company | 2 |
| DIGISOL | IT | Private | 1 |
| DLK TECHNOLOGIES | IT | Private | 1 |
| DLW | Manufacturing | Government Body | 2 |
| DMRC | Engineering | Government Body | 1 |
| DRDO | Engineering | Government Body | 8 |
| DTTDC | Engineering | Public Sector Unit (PSU) | 1 |
| DURGAPUR STEEL PLANT | Manufacturing | Public Sector Unit (PSU) | 2 |
| EAST CENTRAL RAILWAY | Transport | Public | 3 |
| EASTERN COALFIELDS LTD | Mining | Government Body | 1 |
| EASTERN POWER DISTRIBUTION COMPANY OF A.P | Energy | Government Body | 1 |
| ECIL | Energy | Private | 5 |
| ELECTRO POWER ENGINEERING | Power | Private | 1 |
| ELICO LTD | Manufacturing | Private | 1 |
| EMBEDDED SYSTEMS SOLUTIONS PVT. LTD | Engineering | Private | 2 |
| EMERSON INDUSTRIAL AUTOMATION | Manufacturing | Private | 2 |
| ENMAX EPC PVT LTD | Design | Public Limited Company | 1 |
| EPOCH ELECTRIC PVT. LTD | Power | Private | 1 |
| ESSAR STEEL LTD | Manufacturing | Private | 1 |
| FLEX PVT. LTD. | Automobiles | Private | 1 |
| FORECH INDIA LTD. | Manufacturing | Private | 1 |
| FUSION INDIA PVT LTD | Engineering | Private | 1 |
| GAIL | Energy | Public Sector Unit (PSU) | 1 |
| GALORE NETWORKS PVT LTD | Telecom | Private | 1 |
| GAMMON INDIA LIMITED | Engineering | Private | 1 |
| GOLDEN FIBERS | Textiles | Private | 1 |
| GRSE LTD | Others | Private | 1 |
| GRSE LTD | Others | Private | 1 |
| GSS INFOTECH | IT | Private | 2 |
| HAL BANGLORE | Manufacturing | Public | 5 |
| HALDIA ENERGY LIMITED | Energy | Public Limited Company | 1 |
| HAVELLS | Manufacturing | Private | 1 |
| HCL | IT | Private | 17 |
| HEAVY ENGG CORPORATION RANCHI. | Manufacturing | Public Sector Unit (PSU) | 2 |
| HETEROGENOUS COMMUNICATIONS TECHNOLOGIES PVT LTD | Telecom | Private | 6 |
| HINDUSTAN AUTOMATION SOLUTIONS | Manufacturing | Private | 1 |
| HINDUSTAN SHIPYARD LIMITED | Manufacturing | Public | 5 |
| HI-TECH ENGINEERING CORPORATION INDIA PVT. LTD | Engineering | Private | 1 |
| HONEY WELL | Energy | Private | 2 |
| HP COMPANY | IT | Private | 14 |
| HPPCL | Energy | Government Body | 14 |
| HWASHIN AUTOMOTIVE INDIA PRIVATE LIMITED | Automobiles | Private | 2 |
| IFFCO | Agriculture | Public Limited Company | 8 |
| IIT | Education | Private | 7 |
| IMAX TECHNOLOGIES | IT | Private | 1 |
| INDIAN NAVAL ACADEMY | Education | Government Body | 2 |
| INDIAN RAILWAY | Engineering | Government Body | 7 |
| INDIAN SPACE RESEARCH ORGANISATION | Engineering | Government Body | 1 |
| INDIAN TELEPHONE INDUSTRIES | Telecom | Government Body | 2 |
| INDUSTRIAL AUTOMATION | Engineering | Private | 1 |
| INFOGRO TECHNOLOGIES PVT.LTD | Engineering | Private | 2 |
| INPHASE POWER TECHNOLOGIES PVT.LTD | Engineering | Private | 6 |
| IOC | Engineering | Government Body | 1 |
| ION EXCHANGE | Manufacturing | Private | 2 |
| ISRO | Others | Government Body | 1 |
| ISRO BANGALORE | Engineering | Public | 1 |
| ITC LIMITED | Manufacturing | Public Limited Company | 3 |
| J.K.LAKSHMI CEMENT PVT.LTD | Engineering | Private | 1 |
| JAIPUR METRO RAIL CORPORATION | Transport | Government Body | 7 |
| JOHNSON & CONTROLS, INDIA, PUNE | Engineering | Private | 1 |
| JOHNSON CONTROLS INDIA PVT LTD | Manufacturing | Private | 4 |
| JSW STEEL PLANT SALEM | Manufacturing | Private | 3 |
| JUSCO | Manufacturing | Private | 2 |
| KAASHIV INFOTECH | Engineering | Private | 1 |
| KAHALGAON SUPER THERMAL POWER PROJECT, BIHAR | Power | Private | 1 |
| KANNUR INTERNATIONAL AIRPORT LTD | Engineering | Government Body | 1 |
| KELLY SERVICES INDIA PRIVATE LIMITED | IT | Private | 1 |
| KERALA STATE ELECTRICITY BOARD | Energy | Government Body | 1 |
| KOTA SUPER THERMAL POWER STATION | Power | Government Body | 2 |
| KOTHAGUDEM THERMAL POWER STATION | Energy | Government Body | 17 |
| KOTSONS PVT. LTD. | Manufacturing | Private | 4 |
| KRITI TOOLS PVT LTD | Engineering | Private | 1 |
| KTPS | Energy | Government Body | 7 |
| L & T | Engineering | Public Limited Company | 9 |
| LAVA INTERNATIONAL LTD | Telecom | Private | 2 |
| LG | FMCG | Public Limited Company | 2 |
| LION VISION | Engineering | Private | 1 |
| LUCAS TVS LIMITED | Manufacturing | Private | 1 |
| M S ELEKTRONIC INDUSTRIES | Design | Private | 2 |
| MADHYA PRADESH POWER GENERATION COMPANY LIMITED | Power | Government Body | 2 |
| MADRAS ATOMIC POWER STATION | Power | Government Body | 4 |
| MALAR ELECTRONICS | Engineering | Private | 2 |
| MANGALAM CEMENT LTD. | Manufacturing | Public Limited Company | 1 |
| MARUTI SUZUKI | Automobiles | Public Limited Company | 2 |
| MAZAGON DOCK SHIP BUILDERS LTD. MDL | Manufacturing | Government Body | 1 |
| MECON LIMITED(PSU) | Design | Government Body | 1 |
| MEERA ENTERPRISE | Manufacturing | Private | 3 |
| MEGHALAYA POWER LIMITED | Engineering | Private | 1 |
| MERCEDES BENZ | Automobiles | Public Limited Company | 1 |
| MERIT TECHNOLOGIES INDIA LTD., CHENNAI | Engineering | Private | 1 |
| METAL & STEEL FACTORY | Manufacturing | Government Body | 2 |
| MOLEX (INDIA) PVT. LTD. | Engineering | Private | 1 |
| MSME TOOL ROOM | Manufacturing | Government Body | 1 |
| MSP STEEL AND POWER LIMITED | Basic Metal and Steel | Public Limited | 2 |
| MTPS METTUR | Power | Government Body | 1 |
| NAMRUP THERMAL POWER STATION | Energy | Public Sector Unit (PSU) | 1 |
| NARLA TATA RAO THERMAL POWER | Power | Public Limited Company | 4 |
| NATIONAL ALUMINIUM COMPANY LIMITED | Manufacturing | Public Sector Unit (PSU) | 2 |
| NATIONAL FERTILIZER LIMITED | Chemicals | Public Sector Unit (PSU) | 4 |
| NATIONAL MINERAL DEVELOPMENT CORPORATION | Engineering | Government Body | 1 |
| NATIONAL THERMAL POWER CORPORATION | Power | Government Body | 2 |
| NE RAILWAY GORAKHPUR | Engineering | Government Body | 2 |
| NF RAILWAY | Transport | Government Body | 4 |
| NHDC LTD | Engineering | Government Body | 2 |
| NHPC LTD GOI ENTERPRISE | Engineering | Government Body | 2 |
| NORTH BIHAR POWER DISTRIBUTION COMPANY | Engineering | Government Body | 1 |
| NORTH CENTRAL RAILWAY | Engineering | Public Limited Company | 1 |
| NORTH EAST RAILWAY | Manufacturing | Government Body | 1 |
| NORTH EASTERN COALFIELDS LIMITED, TINSUKIA, ASSAM | Mining | Public Limited Company | 1 |
| NORTH EASTERN ELECTRIC POWER CORPORATION LTD | Power | Public Limited | 4 |
| NORTH WESTERN RAILWAYS AJMER | Others | Government Body | 2 |
| NORTHERN RAILWAYS LOCOMOTIVE WORKSHOP | Others | Government Body | 1 |
| NPCIL | Power | Government Body | 4 |
| NSPCL | Power | Public Limited Company | 4 |
| NSPCL | Power | Public Limited Company | 1 |
| NTECL | Energy | Government Body | 2 |
| NTL ELECTRONICS INDIA LTD. | Manufacturing | Private | 1 |
| NTPC | Engineering | Government Body | 45 |
| NUCLEAR FUEL COMPLEX | Energy | Government Body | 1 |
| OASYS CYBERNETICS PRIVATE LIMITED | Power | Private | 1 |
| OEN, INDIA | Engineering | Private | 1 |
| ONGC | Energy | Government Body | 15 |
| PANKAJA MILLS(NTC) | Textiles | Public Sector Unit (PSU) | 5 |
| PANKI THERMAL POWER STATION KANPUR UP | Power | Public State | 2 |
| PANTECH SOLUTIONS | Engineering | Private | 1 |
| PARIKH ENTERPRISES | Chemicals | Private | 3 |
| PGCIL | Others | Government Body | 1 |
| PORSCHE BANGALORE | Transport | Private | 2 |
| POWER GRID CORPORATION | Engineering | Government Body | 14 |
| POWER LAB INSTRUMENTS | Engineering | Private | 2 |
| POWER LINK SYSTEMS | Engineering | Private | 1 |
| POWER PLANT | Power | Public | 2 |
| POWER SYSTEM OPERATION CORPORATION LIMITED | Engineering | Public Sector Unit (PSU) | 11 |
| PRASAR BHARATHI PUBLIC LIMITED | Telecom | Government Body | 2 |
| PRIME VISION AUTOMATION SOLUTIONS PVT. LTD. | Engineering | Private | 7 |
| PRIMETALS TECHNOLOGIES INDIA PVT.LTD. | IT | Private | 1 |
| PROMETHEAN ENERGY PVT LTD | Energy | Private | 1 |
| PUNJAB STATE POWER CORPORATION LTD | Power | Public Limited Company | 2 |
| PYROTECH PVT LTD. | Machinery and Equipment | Private | 1 |
| RAIL WHEEL FACTORY BELA | Manufacturing | Government Body | 7 |
| RDSO | Transport | Government Body | 2 |
| REAL ISPAT & POWER LTD | Manufacturing | Public Limited Company | 7 |
| RECIPHARM PHARMASERVICES PVT LTD | Pharmaceutical | Private | 1 |
| RELIANCE INDUSTRIAL LTD PATALGANGA,RAIGAD | Engineering | Private | 1 |
| RELIANCE JIO | Telecom | Public Limited Company | 4 |
| RETECH SOLUTIONS PVT LTD | Engineering | Private | 1 |
| ROURKELA STEEL PLANT | Manufacturing | Government Body | 2 |
| RSP,ROURKELA | Others | Public Sector Unit (PSU) | 2 |
| RTTC BSNL | Telecom | Public Sector Unit (PSU) | 4 |
| SAIL | Basic Metal and Steel | Government Body | 1 |
| SALASAR ALLOY AND STEEL INDUSTRIES (P) LTD | Manufacturing | Private | 2 |
| SALVO TECHNOLOGIES | IT | Private | 3 |
| SALZER ELECTRONICS | Engineering | Private | 2 |
| SCHAEFFLER INDIA | Manufacturing | Private | 1 |
| SCHNEIDER ELECTRIC | Manufacturing | Public | 9 |
| SECL | Engineering | Public Limited Company | 1 |
| SHRUSTI HEALTHCARE | Engineering | Private | 1 |
| SIEMENS | Engineering | Public Limited Company | 17 |
| SIEMENS TECHNOLOGY AND SERVICES LIMITED | IT | Private | 3 |
| SILVER MOTOR & PUMPS PVT LTD | Engineering | Private | 2 |
| SJVN LTD. | Energy | Government Body | 3 |
| SJVNL THERMAL PVT. LTD. BUXAR | Power | Government Body | 1 |
| SKILLTREE TECHNOLOGIES | Education | Private | 1 |
| SOFCON INDIA PVT LTD | Power | Private | 1 |
| SOFTGRIP POWER PRODUCTS | Manufacturing | Private | 1 |
| SOUTH CENTRAL RAILWAY | Engineering | Government Body | 11 |
| SOUTH EAST CENTRAL RAILWAY | Engineering | Government Body | 4 |
| SOUTH EASTERN COAL FIELD LIMITED | Engineering | Government Body | 1 |
| SOUTHERN RAILWAY CHENNAI | Transport | Government Body | 18 |
| SPANNKRAFT HYDROSYSTEMS PRIVATE LIMITED | Manufacturing | Private | 1 |
| SRI DAMODARAM SANJEEVAIAH THERMAL POWER STATION | Engineering | Government Body | 3 |
| SRM UNIVERSITY | Education | Private | 2 |
| SS ELECTRONICS | Engineering | Private | 2 |
| STEEL AUTHORITY OF INDIA LIMITED | Engineering | Government Body | 7 |
| SUMUL DAIRY | Engineering | Government Body | 1 |
| SUNFLAG | Engineering | Government Body | 1 |
| SUZLON | Engineering | Private | 1 |
| TANGEDCO | Engineering | Government Body | 1 |
| TANTRANSCO | Others | Government Body | 1 |
| TATA MOTORS | Manufacturing | Public Limited Company | 3 |
| TATA POWER | Engineering | Public Limited Company | 3 |
| TATA POWER DDL | IT | Private | 1 |
| TATA STEEL | Basic Metal and Steel | Public Limited Company | 6 |
| TEAM BEST | Engineering | Private | 1 |
| TECHNIP | Engineering | Private | 1 |
| TELANGANA STATE POWER GENERATION CORPORATION LIMITED | Energy | Government Body | 1 |
| TERI UNIVERSITY | Education | Government Body | 2 |
| TEXMACO RAIL AND ENGINEERING LIMITED BELGHARIA | Manufacturing | Public Limited | 1 |
| THE SINGARENI COLLIERIES COMPANY LTD | Mining | Government Body | 3 |
| THERMAL POWER PLANT | Power | Government Body | 2 |
| THYSSENKRUPP INDUSTRIAL SOLUTIONS | Engineering | Private | 2 |
| TIDC INDIA | Automobiles | Public Limited Company | 3 |
| TIMKEN ENGINEERING & RESEARCH INDIA PRIVATE LIMITED | Manufacturing | Private | 1 |
| TITAGARH THERMAL POWER STATION | Power | Public Limited Company | 3 |
| TOSHIBA | Engineering | Private | 2 |
| TTPS | Energy | Government Body | 2 |
| TUBES PRODUCT OF INDIA | Manufacturing | Private | 1 |
| TVS SUNDARAM FASTENERS LTD | Manufacturing | Private | 1 |
| UDAIPUR CEMENT WORKS | Manufacturing | Private | 1 |
| UNICORN INDIA | Manufacturing | Private | 1 |
| UNIQ TECHNOLOGIES | Engineering | Private | 9 |
| UTTARAKHAND POWER CORPORATION LTD | Power | Public Limited Company | 6 |
| WEST BENGAL STATE ELECTRICITY DISTRIBUTION COMPANY LIMITED | Energy | Government Body | 3 |
| WEST CENTRAL RAILWAY | Transport | Government Body | 4 |
| WESTERN RAILWAY | Engineering | Government Body | 1 |
| WOORY AUTOMOTIVE INDIA PRIVATE LIMITED | Automobiles | Private | 1 |
| YAZAKI INDIA LIMITED | Engineering | Public Limited Company | 8 |
| ZUARI AGRO CHEMICALS LTD | Agriculture | Government Body | 0 |
