| # | Enterprise / Undertaking | Location | Present Name / Updated Status & Key Notes |
| 1 | Bharat Electronics Limited (BEL) | Jalahalli, Bengaluru (Karnataka) | Navratna PSU under the Ministry of Defence. |
| 2 | Heavy Engineering Corporation Ltd. (HEC) | Ranchi, Jharkhand | Major engineering CPSE under Ministry of Heavy Industries. |
| 3 | Heavy Machine Building Plant (HMBP) | Ranchi, Jharkhand | Major manufacturing unit of Heavy Engineering Corporation (HEC). |
| 4 | Heavy Vehicles Factory (HVF) | Avadi (Chennai), Tamil Nadu | Production unit under Armoured Vehicles Nigam Limited (AVNL) / Ministry of Defence. |
| 5 | Hindustan Aeronautics Limited (HAL) | Bengaluru, Karnataka | Navratna PSU under Ministry of Defence (formerly Hindustan Aircraft Limited). |
| 6 | Hindustan Aircraft Factory | Bengaluru, Karnataka | Merged: Merged into Hindustan Aeronautics Limited (HAL) in 1964. |
| 7 | Hindustan Cables Ltd. | Rupnarayanpur, West Bengal | Closed: Official closure/winding up approved by the Government of India. |
| 8 | Hindustan Housing Factory Ltd. | New Delhi | Renamed as Hindustan Prefab Limited (HPL) under Ministry of Housing & Urban Affairs. |
| 9 | Hindustan Latex Ltd. | Peroorkada (Thiruvananthapuram), Kerala | Renamed as HLL Lifecare Limited under Ministry of Health & Family Welfare. |
| 10 | Hindustan Organic Chemicals Ltd. (HOCL) | Rasayani (Raigad, formerly Kolaba), Maharashtra | CPSE under Ministry of Chemicals and Fertilizers (Main plant at Kochi, Kerala). |
| 11 | Hindustan Photo Films Manufacturing Co. Ltd. | Ooty (Udhagamandalam), Tamil Nadu | Closed: Official closure process initiated and manufacturing operations shut. |
| 12 | Hindustan Zinc Ltd. (HZL) | Udaipur, Rajasthan | Privatized: Subsidiary of Vedanta Limited (Government holds minority stake). |
| 13 | Hindustan Teleprinters Ltd. (HTL) | Chennai, Tamil Nadu | Privatized: Acquired by Himachal Futuristic Communications Ltd (HFCL). |
| 14 | Integral Coach Factory (ICF) | Perambur (Chennai), Tamil Nadu | Premier coach manufacturing unit of Indian Railways |
| 15 | Security Paper Mill | Narmadapuram (formerly Hoshangabad), Madhya Pradesh | Unit of Security Printing and Minting Corporation of India Limited (SPMCIL). |
| 16 | Neyveli Lignite Corporation Ltd. | Neyveli, Tamil Nadu | Renamed as NLC India Limited (NLCIL); Navratna CPSE under Ministry of Coal. |
| 17 | Steel Authority of India Limited (SAIL) | New Delhi (HQs) / Plants at Bhilai, Rourkela, Bokaro, Durgapur, Salem | Maharatna PSU and premier steel producer in India. |
| 18 | Bharat Heavy Electricals Limited (BHEL) | New Delhi (HQs) / Plants at Bhopal, Haridwar, Tiruchirappalli, Hyderabad | Maharatna PSU manufacturing power and industrial equipment. |
| 19 | Oil and Natural Gas Corporation (ONGC) | New Delhi (HQs) / Dehradun | Maharatna PSU and India’s largest crude oil and natural gas company. |
| 20 | Coal India Limited (CIL) | Kolkata, West Bengal | Maharatna PSU; largest coal-producing company in the world. |
| 21 | National Thermal Power Corporation (NTPC) | New Delhi | Maharatna PSU and largest power utility in India. |
| 22 | Indian Oil Corporation Limited (IOCL) | New Delhi / Refineries at Guwahati, Digboi, Panipat, Mathura, Haldia | Maharatna CPSE leading the petroleum refining and marketing sector. |
