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STM Savunma Teknolojileri Muhendislik ve Ticaret logo

STM Savunma Teknolojileri Muhendislik ve Ticaret

Warship design, submarines, loitering munitions, cyber and consultancy.

//Overview

STM was created in 1991 by a decision of Turkey's Defence Industry Executive Committee, originally to give the procurement authority and the armed forces an engineering and consultancy capability of their own. It grew into something wider. The firm now designs warships, builds loitering munitions, runs cyber security operations and still sells the certification, systems engineering and project management advice it started with. Naval platforms remain the anchor of the business. STM holds design, construction and modernisation roles across the MILGEM Ada class corvettes, the I class frigate TCG Istanbul and the Reis class Type 214 submarines, and it is building the STM 500, a 500 tonne coastal diesel electric boat aimed at navies that operate in shallow water where a full size submarine is the wrong tool.

Export work has been steady rather than occasional. STM led the engineering for four Jinnah class corvettes for the Pakistan Navy under the MILGEM-J programme, two built in Istanbul and two at Karachi Shipyard, delivered the PNS Moawin fleet tanker and carried out the mid life upgrade of Pakistan's Agosta 90B submarines. Ship designs have gone to Malaysia as well. Unmanned and autonomous systems form the second pillar. Kargu is the rotary wing loitering munition that put the company on the map and has been exported across three continents, Alpagu and the longer ranged Alpagut are the fixed wing equivalents, Togan is a mini reconnaissance and surveillance aircraft, Boyga drops munitions and Turul is a vertical takeoff design. Underwater, Neta 300 is an autonomous vehicle already in sea trials, and Tengiz is a 17.8 tonne extra large unmanned underwater vehicle shown in 2026 that carries heavy torpedoes and acts as a mothership for smaller craft. The tactical UAV family has reached fifteen countries on four continents.

Command, control and decision support software, satellite and radar technology engineering and information technologies fill out the technical side of the house. Cyber security is run as a business rather than an internal function, covering threat intelligence, application security, security level assessment and incident response, and STM established the first cyber fusion centre in Turkey. STM ThinkTech is the technology think tank arm, publishing sector analysis and delivering studies for public bodies, universities and NATO, including an integrated resilience model handed over in 2021. The company also signed a maritime security cooperation agreement with NATO. Around 2,500 people work there, and the firm has appeared in the Defense News Top 100 several years running. The engineering and consultancy roots still shape how the work is sold, because a large share of the naval business is design authority and programme management on hulls STM does not itself weld, with construction carried out at naval and commercial yards while the company keeps responsibility for design, integration and certification.

//Core Competencies
  • Surface warship design and construction management
  • Submarine design and mid life modernisation
  • Naval platform integration and certification
  • Loitering munition development
  • Mini and tactical UAV systems
  • Autonomous underwater vehicle development
  • Command, control and decision support software
  • Cyber threat intelligence and security operations
  • Satellite and radar technology engineering
  • Systems engineering, certification and project management consultancy
  • Defence technology research and sector analysis
//Products & Services
productSTM 500

Coastal diesel electric submarine of the 500 tonne class designed for shallow water operations.

productTENGIZ

Extra large unmanned underwater vehicle of 17.8 tonnes able to launch heavy torpedoes and smaller vehicles.

productNETA 300

Autonomous unmanned underwater vehicle in sea trials for next generation naval missions.

productKARGU

Rotary wing loitering munition exported to customers across three continents.

productALPAGU

Fixed wing loitering munition with extended range and increased payload.

productALPAGUT

Longer range fixed wing loitering munition, including a version launched from underwater.

productTOGAN

Mini reconnaissance and surveillance UAV in Turkish Armed Forces service.

productBOYGA

Munition dropping unmanned aircraft for tactical units.

productSTM TURUL

Vertical takeoff and landing unmanned aircraft for confined launch sites.

productKamikaze unmanned surface vessel

High speed low signature attack USV with swarm operation capability.

serviceWarship design and build management

Design, construction supervision and integration for corvettes, frigates and support vessels.

serviceSubmarine modernisation

Mid life upgrade and combat system renewal work for conventional submarines.

serviceCommand and control software

Decision support and command and control applications for joint and naval users.

serviceCyber security services

Threat intelligence, application security, security level assessment and cyber fusion centre operations.

serviceSTM ThinkTech

Technology think tank producing sector reports and studies for public bodies and NATO.

serviceEngineering and certification consultancy

Systems engineering, certification and project management support for defence programmes.

serviceSatellite and radar technology engineering

Engineering support across satellite and radar system development programmes.

//Programs & Supply Chain

Programs & Platforms

MILGEM Ada classTCG Istanbul I class frigateReis class submarinesPakistan Navy MILGEM-JPNS MoawinAgosta 90B mid life upgradeNATO maritime security cooperationALTAY command and control
//Locations
HeadquartersHQ

TurkeyAnkara, Turkey

//Corporate & FinancialSelf-reported

Ownership

State-owned