DSEI 2025 – ST Engineering Showcases Comprehensive Defence Capabilities

ST Engineering made a commanding impact at this year’s DSEI defence exhibition in London, unveiling a full spectrum of next-generation defence and simulation technologies. The company’s showcase reflected its capacity to provide agile, interoperable solutions that align closely with emerging operational concepts — most notably the British Army’s Recce-Strike vision, which emphasises speed, precision, mobility, and integrated command networks.

Responding to the UK’s Light Recce-Strike Doctrine

The Light Recce-Strike concept, highlighted in the UK’s latest Strategic Defence Review, defines a modular and agile force package combining advanced reconnaissance, rapid manoeuvre, and precise strike capability. Built around three core pillars, it underpins the Army’s future land combat philosophy:

1-Mobility and survivability

2-Precision and lethality

3-Full integration of C4ISR (Command, Control, Communications, Computing, Intelligence, Surveillance and Reconnaissance) across all domains

ST Engineering’s offerings dovetail with these requirements, particularly through its OEM‑agnostic systems that integrate seamlessly with most armed forces’ existing ORBAT structures. Key solutions on display included:

• Ground Deployed Advanced Mortar System (GDAMS) – a highly mobile, deployable strike module.
• Ultra Electronic Architecture Kit (UltraEAK^®) – a digital backbone enabling open‑architecture command and systems management.
• ADDER Lite Remote Weapon Station – enhanced with counter drone capabilities for contested environments.

These technologies demonstrate ST Engineering’s commitment to scalable, interoperable solutions designed to meet NATO standards while addressing new global security demands.

Spotlight on the Sisu GTT: A Next-Generation Tactical Vehicle

One of the highlights of the stand was the Sisu Ground Tactical Transport (GTT), presented jointly with Finnish manufacturer Oy Sisu Auto Ab. First unveiled earlier this year at SecD-Day in Finland, the made-in-Finland GTT extends the combat-proven legacy of the BRONCO platform while incorporating Sisu’s advanced GTP technologies.

Measuring 6 m in length, 2.5 m in width and 2.55 m in height with an unladen weight of 16.5 tonnes, the GTT has been designed for versatility across mission profiles, including:

• Armoured Personnel Carrier (APC)
• MEDEVAC platform
• Command, Control and Communications (C3)
• Heavy cargo logistics (5 tonnes payload, including NATO-standard 10 ft containers)

The vehicle is powered by a Mercedes-Benz OM926 six-cylinder diesel engine, paired with an Allison 3500 six-speed automatic transmission and independent suspension. It achieves a top speed of over 65 km/h, boasts a 500 km range, can negotiate 60% gradients, and ford water obstacles up to 1.2 m (with preparation).

Protection levels comply with STANAG 4569 ballistic and mine standards, with modular kits available for counter-IED and RPG protection. Its armament options include heavy machine guns, mortar solutions, and smoke grenade launchers, underscoring its adaptability to both frontline combat and support roles.

Importantly, the GTT programme exemplifies industrial collaboration between Finland and Singapore, ensuring local assembly, assured supply chains, long-term lifecycle support, and meaningful economic benefits on both sides.

The BRONCO 3 for the Italian Market

In the static land display area, ST Engineering also presented the BRONCO 3 amphibious tracked transporter in partnership with Italian defence prime Leonardo and engineering firm ARIS. The vehicle builds upon the BRONCO family’s proven Arctic and all-terrain heritage, making it an ideal contender to replace Italy’s ageing BV206 fleet.

The BRONCO 3 carries up to 12 personnel (4 in the forward cabin, 8 in the rear module) with a payload capacity of 6 tonnes and the ability to fulfil varied operational roles — troop transport, ambulance, mobile command post, or mortar carrier. With modular armour and remote weapon system integration, it provides flexibility for diverse missions in the most extreme environments.

Under this partnership, Leonardo would be the prime contractor, system integrator and develop specialised mission modules for the platform, while ST Engineering would provide the technical transfer for ARIS to localise the production of the BRONCO in Italy.

Reinforcing Global Partnerships

Through its displays at DSEI 2025, ST Engineering underlined not only its commitment to supporting the British Army’s Recce-Strike transformation, but also its growing footprint across Europe and beyond. By combining connected heavy vehicles, autonomous platforms and digital architectures, the company is positioning itself as a strategic enabler of modernisation programmes worldwide.

As the global security environment becomes increasingly complex, ST Engineering’s modular, interoperable, and combat-proven solutions demonstrate its capability to meet both NATO requirements and the demands of a new era of multi-domain operations.

Photos by P. Valpolini