| Hindustan Aeronautics Ltd (HAL) | HAL.NS | 4,000+ | ₹2.7 L Cr | Aerospace, Fighter Jets | Core PSU in aircraft and helicopter manufacturing |
| Bharat Electronics Ltd (BEL) | BEL.NS | 225+ | ₹1 L Cr | Defense Electronics | Major radar, missile & communication system supplier |
| Bharat Dynamics Ltd (BDL) | BDL.NS | 1,700+ | ₹30,000 Cr | Missile Systems | Sole PSU producer of guided missiles for Indian military |
| Mazagon Dock Shipbuilders | MAZDOCK.NS | 3,000+ | ₹60,000 Cr | Submarines, Warships | Builds Scorpene-class submarines and naval vessels |
| Cochin Shipyard Ltd | COCHINSHIP.NS | 1,500+ | ₹20,000 Cr | Naval Shipbuilding | Major player in building & repairing Navy ships |
| Garden Reach Shipbuilders & Engineers | GRSE.NS | 950+ | ₹11,000 Cr | Warships, Naval Craft | Specialist in small-to-medium warships and patrol vessels |
| Mishra Dhatu Nigam Ltd (MIDHANI) | MIDHANI.NS | 550+ | ₹10,000 Cr | Specialty Defense Materials | Supplies alloys and materials for missiles, submarines & aircraft |
| Data Patterns (India) Ltd | DATAPATTNS.NS | 2,300+ | ₹12,000 Cr | Avionics, Radar Systems | Advanced electronics & embedded systems for defense platforms |
| Paras Defence and Space Tech | PARAS.NS | 850+ | ₹3,500 Cr | Optics, Drones, Space Tech | Niche player in electro-optics and UAVs with export potential |
| MTAR Technologies | MTARTECH.NS | 1,900+ | ₹6,000 Cr | Precision Engineering | Supplies strategic parts to DRDO, ISRO, and nuclear defense programs |
| Solar Industries India Ltd | SOLARINDS.NS | 7,000+ | ₹65,000 Cr | Ammunition, Explosives | Major provider of military-grade explosives, fuzes, and warheads |
| Larsen & Toubro (Defense Division) | LT.NS | 3,700+ | ₹5.2 L Cr | Naval Systems, Strategic Projects | Builds submarines, missile launchers; major infra + defense player |
| Taneja Aerospace and Aviation Ltd | TANEJA.BO | 350+ | ₹1,000 Cr | Aerospace Components | Involved in aircraft testing and aerospace manufacturing |
| Zen Technologies | ZENTEC.NS | 850+ | ₹6,500 Cr | Combat Simulators | Leading simulation training equipment maker for armed forces |
| Axiscades Technologies Ltd | AXISCADES.NS | 700+ | ₹2,000 Cr | Engineering for Defense & Aerospace | Offers R&D and design services for defense, aerospace, and homeland security |
| Avantel Ltd | AVANTEL.NS | 500+ | ₹1,200 Cr | Satellite & Naval Communication | Supplies defense-grade satellite communication systems |
| Astra Microwave Products | ASTRAMICRO.NS | 500+ | ₹4,000 Cr | Radar, RF Electronics | RF & microwave subsystems for DRDO, radar & missile systems |
| Premier Explosives Ltd | PREMEXPLN.BO | 800+ | ₹1,000 Cr | Propellants, Explosives | Manufacturer of solid propellants and defense explosives |
| BEL-THALES Systems Ltd (JV) | Unlisted | – | – | Joint Venture – Defense Electronics | JV of BEL with French Thales for defense-grade radar and sensor systems |
