Sigma Advanced Systems Ltd, an aerospace and defence engineering and manufacturing company, has secured an order worth $19.70 million (approximately ₹174 crore) from a North American customer serving the NATO defence ecosystem for specialised ancillary subsystems used in 155 mm artillery ammunition.
The order is scheduled for execution by the second quarter of calendar year 2027, with manufacturing to be undertaken within Sigma’s manufacturing ecosystem.
The latest contract marks the company’s fifth engagement involving 155 mm artillery ammunition since May 2026, reflecting its expanding presence across the ammunition manufacturing supply chain.
Expanding presence across ammunition manufacturing
Sigma’s portfolio in the 155 mm segment now spans shell bodies, filled fuzes, advanced base-bleed shell technology, collaboration on course-correction fuze technology and ancillary subsystems.
The latest order expands the company’s manufacturing scope beyond individual ammunition components towards a broader engineering and manufacturing role across multiple elements of an artillery round.
The addition of specialised subsystems could enable Sigma to pursue programmes requiring more complex manufacturing capabilities and coordination across components, subject to customer qualifications and commercial agreements.
The company is seeking to strengthen its position in international defence manufacturing by expanding its product portfolio and building on its existing manufacturing infrastructure, quality systems and customer relationships.
Global defence spending creates opportunities
The Russia-Ukraine war has highlighted the scale of artillery ammunition requirements in high-intensity conflicts, prompting NATO members and allied governments to prioritise inventory replenishment and expand ammunition production capacity.
The European Union launched its Act in Support of Ammunition Production (ASAP) in 2024 with €500 million in funding to address production bottlenecks and strengthen the region’s ammunition manufacturing capabilities. NATO has also pursued initiatives to aggregate demand, encourage multi-year procurement and expand industrial capacity.
For manufacturers such as Sigma, these developments could create opportunities to participate in international defence programmes as customers seek reliable suppliers across the ammunition value chain.
The company’s expanding capabilities could also help it pursue requirements involving more technically demanding components and subsystems. However, additional orders and longer-term supply arrangements would depend on customer demand, programme performance and mutually agreed commercial terms.
CEO highlights growing capabilities
Sigma Advanced Systems Chief Executive Officer Sunil Kalidindi said, “Global defence customers are looking beyond individual components to partners who can support increasingly complex manufacturing requirements across the ammunition supply chain. This calls for engineering depth, manufacturing consistency and the ability to deliver specialised products at scale.”
“This order builds on the capabilities Sigma has developed across the 155 mm segment and marks a further step in broadening our role in international defence manufacturing. Our focus is on building capabilities that allow us to participate in more technically demanding programmes and respond to customers’ evolving requirements. We see this engagement as an opportunity to strengthen our relationship with the customer and expand our contribution to the wider ammunition manufacturing ecosystem,” Kalidindi added.
The latest contract supports Sigma’s strategy of expanding its international defence manufacturing business and building a wider presence in specialised engineering and manufacturing programmes.