Apollo Micro Systems is India’s only publicly listed private company that builds the “brain, eyes, and nerves” of missiles - the onboard electronics that guide, sense, and track targets - and it is now graduating from a subsystem specialist to a platform-level original equipment manufacturer that puts its own name on weapons, not just its components inside them. Founded in 1985 as an electronic design services firm in Hyderabad, it spent four decades moving steadily up the value chain - from processor boards in the 1990s to payload checkout systems for ISRO, then into decoys, mines, and now complete unmanned systems and munitions - a path that culminated in the 2025 acquisition of IDL Explosives, which added warheads and propellants to its electronics core. The recurring approach is conviction-led, in-house innovation: R&D runs at 6-9% of revenue, every design is original with no reverse engineering, and the company retains or contractually assigns all intellectual property, which is how it has embedded itself into over 150 indigenous defence programmes with zero customer attrition across more than four decades.
Business segments
A single integrated defence-technology engine spanning three layers - the electronic subsystems that form the guidance core of India’s missiles and torpedoes, the complete weapon platforms those subsystems enable, and the explosives and energetics that give them destructive power - all built on a shared manufacturing and R&D backbone.
1. Critical subsystems and electronics: the guidance core that runs India’s missiles
The company is responsible for roughly 60% of the electronics, electromechanical, and mechanical systems inside India’s indigenised missile programmes, making it the quiet backbone on which DRDO and the armed forces depend.
- The brain of the torpedo - it developed India’s first universal homing system for heavyweight torpedoes over six years with DRDO, and remains the only qualified vendor in the country for this technology; large-scale production preparation is now underway at the Unit-III facility.
- Every missile needs guidance - the company produces the full navigation stack: onboard computers, inertial navigation systems built on MEMS, fibre-optic gyro, and ring-laser gyro technologies, plus the actuation systems, fuzes, and safety-arming mechanisms that translate guidance commands into physical action.
- RF and electronic warfare are the new frontier - through the 2021 acquisition of Ananya SIP RF Technologies, it gained in-house capability in RF sensors, tracking and direction-finding systems, and electronic warfare sensors, and it is now embedding artificial intelligence for sensor fusion in autonomous vehicles and battlefield applications.
- Space and avionics, too - it supplies launcher relay units and payload checkout systems for ISRO, and builds torpedo control panels, unified avionics computers, and landing-gear actuators for airborne platforms, which means its electronics fly on rockets and aircraft as well as underwater.
- R&D is the moat - the company spent 8% of revenue on R&D in FY26, the highest in the industry by its own assessment, and recorded zero attrition in its R&D team that year; it is a recognised collaborative R&D partner of Bharat Electronics Limited and holds CEMILAC certification to design airworthy products.
2. Weapon systems and platforms: from supplier to name-on-the-weapon OEM
The company now holds a lifetime DPIIT licence to manufacture complete missiles, torpedoes, underwater mines, aerial bombs, rockets, and loitering munitions, and it is putting its own name on platforms - most visibly the Vighna naval mine, India’s first indigenous mine of its class.
- Naval mines where only four nations play - it is the approved DRDO production partner for the Multi-Influence Ground Mine (MIGM), designated Vighna, a seabed mine that puts India in a league with only the US, Russia, China, and Italy; it also produces shallow-water, deep-water, and limpet mines, making it the only Indian company with a complete underwater-mine portfolio.
- Kamikaze boats and anti-submarine rockets - it has developed submersible boats that wait underwater and then surface to ram targets in swarms for area denial, and it produces standoff anti-submarine warfare rockets that identify and eliminate enemy submarines from destroyers.
- Unmanned air systems with a sting - it holds a licence to manufacture unmanned helicopters and has developed nine variants of aerial bombs - anti-personnel, anti-tank, and anti-bunker - in 5 kg, 7.5 kg, and 10 kg sizes, fitted onto loitering munitions and drones; it is also working on long-endurance high-altitude systems with GPS-denied capability.
- Directed energy and counter-drone systems - it has received Transfer of Technology for a 10 kW multi-channel laser directed-energy weapon from DRDO-CHESS and an electro-optical tracking system from DRDO-IRDE, and is developing vehicle-mounted counter-drone systems under the Make II category.
- Land systems are the next push - FY26-27 marks a serious entry into battle-tank electronics, fire-control systems, infantry combat vehicles, and artillery platforms, with trials scheduled in upcoming quarters; it already holds the Transfer of Technology for directed energy weapons, including laser-based DEW and electro-optical tracking systems, and is developing new variants with AI sensor fusion.
3. Explosives and energetics: the destructive power behind the electronics
Through the 2025 acquisition of IDL Explosives - a company founded in 1961 as India’s first Indian-owned explosives firm - AMS now controls the warheads, propellants, and military-grade energetics that turn its electronic systems into complete weapons.
- Vertical integration that cuts out third parties - the acquisition gives AMS in-house access to TNT, RDX, and HMX, with a defence licence permitting 50 tonnes per annum of HMX and 500 tonnes per annum of TNT, valid for up to 15 years, so it can source raw materials for its own warheads and fuzes without relying on external vendors.
- From components to complete ammunition cycles - by combining IDL’s explosives with its own fuze and electronic-systems engineering, the company can now bid for full-system contracts covering mines, warheads, rocket motors, and specialised ordnance, entering the complete ammunition lifecycle.
- A commercial business that pays its own way - IDL operates seven plants across six states, exports packaged and bulk explosives to over 20 countries as a Star House exporter, and sits on a substantial land bank of which only about 40% has been used, leaving room for brownfield expansion.
Manufacturing and testing infrastructure
A three-unit campus in Hyderabad, plus a greenfield facility under construction, provides the full chain from cleanroom R&D through automated mass production and military-grade environmental testing - all under one roof.
- Unit I is the manufacturing base - 55,000 square feet in Mallapur, Hyderabad, a plant with streamlined connectivity to design and test operations.
- Unit II adds integration and cleanrooms - 40,000 square feet in Adibatla with advanced integration bays and cleanroom facilities, fully operational from Q1 FY26.
- Unit III is the future factory - a greenfield Integrated Plant for Ingenious Defence Systems under construction on roughly five acres at Hardware Park-II, with 350,000 square feet of built-up area and an investment of INR 210-250 crores, designed to consolidate missile electronics, avionics, RF systems, unmanned aerial and ground systems, and weapon maintenance and repair under a single roof.
- Testing that meets military standards - the company operates a full Environmental Stress Screening facility aligned with DGQA standards, plus in-house EMI/EMC labs, environmental chambers, and vibration rigs, which means it can qualify products internally and reduce time-to-market instead of queueing at external test houses.
- Certifications that open doors - it holds AS 9100D for aerospace quality management, plus ISO 9001, ISO 14001, ISO 45001, and ISO 27001, and its labs comply with electrostatic discharge requirements with ESD-safe furniture throughout.
Group structure and partners
A listed parent with a web of subsidiaries and strategic alliances that extend its reach from underwater weapons with GRSE to loitering munitions with Redon Systems, anchored by marquee customers across India’s entire defence establishment.
- Apollo Defence Industries (ADIPL) - a 76%-owned subsidiary incorporated in 2023 to pursue defence platforms in domestic and international markets; it was the vehicle for the INR 107 crore all-cash acquisition of IDL Explosives, and it raised INR 50 crores via non-convertible debentures in March 2025 to fund further acquisitions, with another deal expected before the end of FY27.
- Ananya SIP RF Technologies - a 51.01%-owned subsidiary acquired in 2020 that brought RF and microwave design and production capabilities into the group, operating from Adibatla, Hyderabad.
- Deep partnerships with the defence establishment - it is an approved Development-cum-Production Partner for DRDO, a collaborative R&D partner of Bharat Electronics, and holds MoUs with Garden Reach Shipbuilders for underwater weapons, Bharat Dynamics for advanced naval systems including autonomous underwater vehicles, and Munitions India Ltd for high-potential defence programmes.
- A customer list that reads like India’s defence directory - Bharat Electronics, BrahMos, Bharat Dynamics, HAL, GRSE, the Indian Army, Navy, and Air Force, ISRO, Tata Advanced Systems, L&T, Adani, MEIL, and Solar Industries all feature among its buyers.