Last Update February 5, 2024


  • Electrical, Electronics & Electro-optics
  • Radar, Sonar, Navigation, Targeting, Surveillance
  • Textile, Individual Equipment, Clothing

THEON INTERNATIONAL, is a leading developer and manufacturer of customizable night vision, thermal imaging systems and Electro-Optical ISR systems for military and security applications in Europe with a global footprint. The THEON Group was founded in 1997 and has since become one of the most relevant players in the segment with offices in Athens, Cyprus, Kempen, Arlington, Abu Dhabi, Dubai, Zug, Copenhagen and Singapore, coupled with manufacturing facilities in Athens, Wetzlar and Plymouth. THEON's commercial presence extends to 68 countries, of which 24 belong to NATO, with almost 150.000 systems manufactured and sold as of 2023.

THEON designs and manufactures cutting-edge optoelectronic devices across both man-portable and dismounted platform-based systems that allow the visualization of images in low light or obscure conditions using different state-of-the-art technologies. Moreover, THEON designs and manufactures Multi-Sensor Electro-Optical Systems either installed in vehicle/vessel platforms for “On the move” ISR Applications or used for “Fixed ground” Border/Coastal Surveillance. The main application of the Group's products is for military, security and ISR operations, with all systems designed and tested in accordance with military specifications and standards while some products may also be used for civil applications, such as hunting or firefighting. THEON Group's devices use either image intensification (i.e. night vision) or thermal imaging technology. Among its night vision devices, the Group manufactures binoculars and monoculars, as well as weapon sights in either standalone or clip-on configuration, night driver viewers, vehicle mounted digital day and night cameras as well as night driver upgrade kits for armored vehicles. Among its thermal imaging devices, the Group manufactures weapon sights (standalone and clip-on), small size thermal clip-on systems (mounted on night vision goggles), thermal driver viewers, customized thermal targeting equipment. Among its Electro-Optical ISR systems, the Group manufactures Multi-Sensor Optronic Systems that integrate Day, LWIR,  MWIR, SWIR vision combined with laser range finding, laser pointing, laser designating functionality, and image blending, automatic object detection/recognition/identification, automated target tracking software algorithms. In addition, THEON Group is developing systems that integrate image intensifying and thermal technology, which results in one fused image for both man-portable and platform-based applications. The Group offers maintenance and product support services for all of its products.
All products are designed in house by an experienced team of engineers who are highly skilled experts in their fields, including optical, mechanical, electronic engineering, software engineering, computer vision engineering, AI engineering, as well as systems design. As a result, THEON Group is able to adjust, develop and customize its products to specific customer requirements, which it considers a comparative advantage in the market. THEON Group operates two state-of-the-art production facilities in Greece as well as one facility in Germany (under the JV with Hensoldt) and another in the U.S. (owned by EOTECH).

The main product lines are: Night Vision Monoculars and Binoculars, Family of Night Vision Sights, Clip-on Night Sights, Night Driver’s Viewers, Digital day and night Cameras and upgrade kits for armoured vehicles, Thermal Stand-alone and Clip-on uncooled Sights, Vehicle and Platform based thermal imaging systems, Optical and Mechanical customized design, ILS and Maintenance Services. 

One of our strengths is the customization of systems to particular requirements of end users and with a fast track design and prototyping procedure we are able to respond to modification requests in a short time

THEON INTERNATIONAL consults its customers on the selection of the right system for the particular use and mission profile and provides training courses at all levels. Professional and complete aftersales support is another key element of the company's international success with local maintenance support solutions that help the end user in making the right investment decisions with the best logistic and support infrastructure. 

All THEON INTERNATIONAL' Systems are rigorously tested prior to market entry following military standard test procedures and highest quality assurance and control criteria. The company maintains a Quality Management System which is in accordance with the requirements of ISO 9001:2015, ISO 14001:2015 and ISO 28000:2007 for the Design, Production and Trading of Electro-optical systems. 

The manufacturing facilities and the company personnel have NATO security clearance for defence related projects.


  • 57, Ioannou Metaxa str., , Koropi, GR-19441, Greece
  • +30 210 664 1420
  • +30 210 664 4093
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