EOS signs £370 million nation-wide counter-drone contract with Gulf state

TLDR

• Electro Optic Systems (EOS) signed a £370 million (~A$700 million) contract to build a nation-wide counter-drone defence system for the government of an unnamed Gulf Co-operation Council member state.¹²
• EOS calls it the largest contract in company history, built around NiDAR, the AI-enabled command-and-control system it gained through its acquisition of MARSS.¹
• EOS is prime contractor and systems integrator, supplying third-party sensors (electro-optical, radar, sonar) and initial effectors including hard-kill interceptors and soft-kill jammers.¹
• The contract is conditional on EOS securing export licenses and posting bank guarantees, and EOS expects over 80% of revenue in the first 12-24 months.¹

Electro Optic Systems Holdings (ASX:EOS) announced it has signed a £370 million (~A$700 million) contract with the government of a Middle Eastern Gulf state for a nation-wide, cellular counter-drone defence system, calling it the largest contract the company has ever secured.¹² The system is built around NiDAR, an AI-enabled command-and-control platform for counter-drone defence that EOS acquired as part of its purchase of MARSS, whose systems have reportedly already proven effective against drone attacks in the Middle East.¹

EOS will act as prime contractor and systems integrator, leveraging MARSS's product line and engineering expertise, while the contract includes third-party sensors, electro-optical, radar and sonar, to detect threats at long and medium range, feeding into central command centres that use NiDAR to fuse the data into threat assessments.¹ The deal also covers initial supply of third-party effectors, including hard-kill interceptors and soft-kill jammers, with roughly 20% of the contract's value tied to four years of ongoing support.¹²

The deal is not yet unconditional: EOS must still obtain export licenses for the system's components and post a £74 million bank guarantee matched by an advance payment from the customer, on top of a performance bond already secured in August.¹ EOS said it expects more than 80% of contract revenue in the first 12-24 months after the conditions are satisfied, with cashflow turning positive around mid-2027.¹

Why it matters: EOS is framing this as proof that Gulf states are shifting counter-drone spending away from expensive interceptor missiles toward integrated, sensor-fused C2 systems after recent regional drone attacks exposed the limits of traditional air defence, and a nation-wide contract of this size, EOS's largest ever, suggests that shift is now attracting major capital, not just pilot programs.