5 Small-Cap Defence Supplier Stocks With Strong Order Books and High Exposure to Defence Programs

Synopsis: Five small-cap defence suppliers with strong order books and deep exposure to India’s most critical defence programs spanning missile systems, radar networks, submarine fleets, and anti-drone warfare are quietly powering the country’s most ambitious indigenisation push yet. 

India’s defence modernisation is no longer a distant policy goal. With the government committing a Rs.6.81 lakh crore defence budget for FY26, reserving 75 percent of its capital acquisition spending for domestic industry, and setting a production target of Rs.3 lakh crore by 2029, the procurement pipeline running through India’s private defence supply chain has never been larger or more visible. Operation Sindoor further underscored the urgency of building deep, indigenous capabilities across every layer of the weapons ecosystem.

The most interesting opportunity in this cycle is not at the platform level but one step below  among the specialist suppliers embedded inside missiles, radar arrays, submarines, and electronic warfare suites. These companies tend to fly below the radar of mainstream coverage despite holding multi-year order books and monopoly-level positions in their respective niches. Here are five small-cap names that stand out on both parameters.

1. Apollo Micro Systems

Apollo Micro Systems is a Hyderabad-based defence and aerospace technology company that designs, develops, and manufactures advanced defence electronics, embedded systems, electronic warfare suites, and electro-optic systems for the Indian Armed Forces. 

The company has been awarded a DPIIT industrial license for the manufacture of unmanned aerial vehicles and allied defence equipment, as well as a license under the Arms Act for manufacturing missiles, torpedoes, mines, and ammunition, signalling a decisive shift from component supplier to full-platform manufacturer.

FY26 revenue surged to Rs.904 crore, up 61 percent year-on-year from Rs.562 crore in FY25, with Q4FY26 alone delivering Rs.293 crore  the company’s highest ever quarterly revenue, up 81 percent year-on-year. The total order book of the company is currently at Rs.1,432 crores.

 FY27 is expected to mark the company’s entry into armament electronics and fire control systems for main battle tanks, infantry combat vehicles, artillery platforms, and vehicle-mounted counter-drone systems, alongside its role as the approved production agency for the Multi-Influence Ground Mine.

2. Paras Defence and Space Technologies

Paras Defence occupies a rare position in India’s private defence ecosystem, building the precision sensing and imaging layers that most platforms depend on but few companies can supply. The company is the only manufacturer in India producing infrared optics in large quantities and has been contributing to some of the country’s most prestigious defence and space programs across optics and optronics, defence electronics, electromagnetic pulse protection, and heavy engineering for over four decades.

Revenue reached Rs.476 crore in FY26, up over 30 percent year-on-year, while the pending order book has grown to nearly Rs.986 crore  close to two years of revenue already locked in. The order book itself has expanded from Rs.215 crore in FY21 to Rs.986 crore in FY26. 

The company recently secured a Rs.52.82 crore electro-optics order from BEL and, through its Controp-Paras associate, an order worth ~ Rs.305 crore from L&T for the CIWS programme. Its Sight-25HD optical system alone is reported to address a multi-thousand unit opportunity across armoured vehicles, air defence systems, and next-generation combat platforms over the coming years.

3. Astra Microwave Products

Astra Microwave is the invisible force inside India’s missile and radar infrastructure. The Hyderabad-based company designs and manufactures radio frequency and microwave subsystems that form the core sensing, guidance, and communication layers of India’s defence and space platforms  a role that makes it indispensable to programs like QRSAM, the Uttam fire control radar for the Tejas aircraft, and the Su-30 electronic warfare upgrade. 

FY26 consolidated revenue reached Rs.1,163 crore, up 10.6 percent year-on-year, with EBITDA margin at 28.7 percent and PAT margin at 16.6 percent. The order book stood at Rs.2,141 crore as of March 2026, with 54 percent from the defence and public sector and 33 percent from exports.

Management has articulated an objective to triple revenue from FY26 levels over the next four to five years, supported by an addressable market of Rs.24,000–25,000 crore across radar programs, missiles, electronic warfare, and exports. 

The board has also approved an in-principle demerger of the space, meteorology, and hydrology businesses, which could unlock a separately listed pure-play space electronics entity  an emerging value lever for longer-term investors.

4. DCX Systems

DCX Systems is a Bengaluru-based defence electronics manufacturer specialising in the system integration and supply of electronic systems, cable and wire harness assemblies, and printed circuit board assemblies for both domestic and international aerospace and defence customers. 

The company’s client base spans some of the world’s most recognised defence names, including Israel’s ELTA Systems and Rafael Advanced Defence Systems, alongside domestic defence PSUs. 

DCX has received a Defence Industrial License from the Government of India for the manufacture of radar and electronic warfare systems, avionics, and defence electronic equipment, allowing it to manufacture items categorised at the highest level of security classification under the Ministry of Defence security manual.

DCX Systems is strengthening its position in India’s defence electronics sector through a joint venture with ELTA Systems to develop airborne maritime, fire-control, and land-based radar systems under the Make in India initiative. The company is also expanding into counter-drone and electronic warfare programs with the Indian Army, creating opportunities for larger platform-level contracts. 

Supporting its growth outlook, DCX reported a consolidated order book of Rs. 2,984 crore as of March 2026, providing strong revenue visibility. While FY26 revenue declined to Rs. 743 crore from Rs. 1,084 crore in FY25 and the company reported a net loss of Rs. 8 crore, its expanding presence in high-value defence technologies could support long-term growth. 

5. Premier Explosives

Premier Explosives holds a uniquely protected position in India’s defence supply chain as one of the only qualified domestic manufacturers of solid propellants, pyrotechnics, and countermeasures for the country’s strategic missile and space programs. The company has long-standing relationships with Bharat Dynamics Limited, ISRO, DRDO, and BEL, supplying critical propellants and explosive devices for programs such as Akash, Astra, and long-range surface-to-air missiles.

The highest ever order book stands at Rs.1,569 crore, representing over four times FY26 revenue and providing strong medium-term visibility. The defence segment accounts for 95 percent of this order book at Rs.1,491 crore, with Q4FY26 defence and space segment revenue growing 43 percent year-on-year. 

The Katepally plant expansion for RDX and HMX production is expected to begin contributing meaningfully to revenue in FY27, while a major export order worth Rs.350 crore secured in April 2026 signals the company’s growing international footprint.

India’s defence indigenisation push has opened a multi-year opportunity not just for the primes but for the deep supply chain that makes every missile, radar, and submarine operationally possible. Companies that hold authorised manufacturer status, Technology Transfer agreements, or proprietary qualifications in niche segments carry moats that are exceptionally difficult to replicate.

Among the six names covered here, Apollo Micro Systems, Paras Defence, Astra Microwave, DCX Systems, and Premier Explosives stand out for their combination of confirmed order visibility, strategic program exposure, and expanding product mandates, making them worth watching as India’s defence production continues its structural climb.

Disclaimer: The views and investment tips expressed by investment experts/broking houses/rating agencies on tradebrains.in are their own, and not that of the website or its management. Investing in equities poses a risk of financial losses. Investors must therefore exercise due caution while investing or trading in stocks. Trade Brains Technologies Private Limited or the author are not liable for any losses caused as a result of the decision based on this article. Please consult your investment advisor before investing.

The post 5 Small-Cap Defence Supplier Stocks With Strong Order Books and High Exposure to Defence Programs appeared first on Trade Brains.