Last Update May 6, 2016


  • C4I, Communication Systems
  • Training & Simulation

Interoperability Systems International Hellas S.A. (ISI Hellas), was established in 1991 and organized to provide efficient and cost effective analysis, definition, design, development, integration, testing and installation of real-time Tactical Command, Control and Communication Systems, Data Link Systems, and Simulator/Trainers.

Since it’s founding the company has been engaged exclusively in the defence sector and provides high quality systems to both the domestic and international markets, having a broad range of experience in US and NATO Standard Data Links, Non-NATO Data Links and Interoperability Solutions.

ISI Hellas is a Greek registered and incorporated Company, a member of the Hellenic Manufacturers of Defence Material Association, a member of AFCEA and a participant to the NATO TDLITS Syndicate and NATO CWID.

With a competitive advantage based on its expertise, its quality procedures and the knowledge of its work force, ISI Hellas offers cost effective solutions for:

  • Customized Interoperable System Solutions.
  • Adaptable Off-the-Shelf Software Applications.
  • Standard Tactical Data Links, including Link 1, Link 11/11B, ATDL-1, Link 16, IJMS, etc. 
  • Custom and Country-specific Data Links.
  • Mission Integration & Management System for Maritime Patrol Aircraft applications.
  • Universal Link System (ULS).
  • Multi-Tactical Data Link Planning System (MTPS).
  • Data Link Design Tools and Monitoring.
  • Universal Test and Training System (UTTS).
  • Tactical Data Link Simulators and Trainers.
  • Radar Video Simulator (RVSM).
  • Fire finder Classroom Trainer (FCT) for the AN/TPQ 36/37 RadarData Analysis from Satellites including Imaging for Maritime Surveillance.
  • Data Links and Data Networking between Ground and Space Segments.
  • Integration and Test Capabilities at all System Levels.
  • Consultancy for the Specification of Tactical Command and Control Systems.

The Hellenic Ministry of Defence has inspected the company’s facilities and certified them and its personnel to the “National Secret” and “NATO Secret” levels. A specially constructed vault has been added and fixed with additional security devices to accommodate the storage of classified material.

ISI Hellas develops and integrates system hardware and software in accordance with strict internal development and configuration control procedures that conform to a moderately adapted version of MIL-STD-498. All system software has been developed using either the Ada or C++ high-level compiler language.

The Company's Development Process and Quality Assurance Program has been certified as compliant with ISO 9001:2008.

ISI Hellas has Representatives and Industry Partners worldwide.

The Company is the partner of choice for a number of multinational organizations such as:

  • Lockheed Martin,
  • Raytheon,
  • Northrop Grumman,
  • ThalesRaytheon,
  • Raytheon Australia,
  • Rheinmentall,
  • SAAB Microwave Systems,
  • US Navy-SPAWAR, etc.

The growth and success of ISI Hellas depended to a large extent on the quality of its human resources. The majority of the staff, are degreed Engineers in the disciplines of Systems, Software, Hardware, Integration and Testing with over 60% hold Post-Graduate Degrees at the Masters and Doctoral Level.

With the rapid advances in communications technology and the increasing requirements of Network-Centric Warfare, ISI Hellas is committed to meeting the challenge of providing the systems and software for NATO and other allied forces to train, fight and succeed in their missions.

Company's Premises

The Company is located in the Athens suburb of Argyroupoli, and operates out of 1500 square meter facility of which 1100 square meters are utilized for office space and the remaining 400 square meters for the production, laboratory and secure storage areas.

ISI Hellas S.A. - Pictures

Contact info #1

David Adams
+30 210 9647756
+30 210 9634892
Kritis & Gravias 12, 164 51 Argyroupoli, Athens, Greece

Contact info #2

Dimitris Karantzavelos
+30 210 9647756
General Manager
+30 210 9634892
Kritis & Gravias 12, 164 51 Argyroupoli, Athens, Greece

Contact info #3

Antonios Anastasiou
+30 210 9647756
Director, Program Manager
+30 210 9634892
Kritis & Gravias 12, 164 51 Argyroupoli, Athens, Greece

Contact info #4

Christos Tsiareas
+30 210 9647756
Technical Director
+30 210 9634892
Kritis & Gravias 12, 164 51 Argyroupoli, Athens, Greece

Contact info #5

Bruce Brady
+30 210 9647756
Director, Business Development & Marketing
+30 210 9634892
Kritis & Gravias 12, 164 51 Argyroupoli, Athens, Greece

Contact info #6

Thanassis Gikas
+30 210 9647756
Director, Hardware Engineering & Production
+30 210 9634892
Kritis & Gravias 12, 164 51 Argyroupoli, Athens, Greece

Contact info #7

Dimitris Papazoudis
+30 210 9647756
Manager, QA & CM Department
+30 210 9634892
Kritis & Gravias 12, 164 51 Argyroupoli, Athens, Greece

Contact info #8

Maria Arvaniti
+30 210 9647756
Purchasing & Procurement Officer
+30 210 9634892
Kritis & Gravias 12, 164 51 Argyroupoli, Athens, Greece


ISI Hellas considers customer care to be an essential factor for the successful implementation and operational use of our systems by our defense customers. It is therefore our goal to understand our customers' technical and operational requirements and effectively integrate them resulting in the provision of turn key solutions.

That effort would include such services as system engineering, customer/user training, maintenance and after sales-support. These services allow our Greek and international customers to fully utilize our systems in the most cost effective way throughout their life-cycle.

System Engineering and Design

The Company's team of experts offers a complete set of Engineering services, including System Architecture and System Design. By investigating and documenting our customers' existing processes and technologies we are designing the development of the new systems at the lowest possible cost, from feasibility through production.

Integration, Test and Evaluation

The Integration and Test Department of ISI Hellas is staffed with engineers skilled in the art of extracting system requirements and creating the test procedures to validate them. The Company has excellent Integration, Test and Evaluation capabilities, at all system levels. These capabilities are provided both internally and as external services. Areas covered include but are not limited to:

  • Hardware and Software Integration Tests.
  • Factory Acceptance Tests.
  • On-Site Acceptance Tests.
  • Sea Acceptance Tests.
  • Flight Tests Acceptance Tests.
  • System Performance Evaluation.

Customer/User Training

Our team of highly qualified and experienced trainers offers a variety of courses on our delivered systems, ensuring that our customers and the system operators apply their newly acquired technology, knowledge and skills efficiently and understand the benefits of applying this know-how in their every day operations. We also offer training on the Standard Data Links, with regard to employment, operation, message sets and network topology.

ISI Hellas achieves this by offering comprehensive training courses and material for the respective systems. Courses include theory, practical exercises and maximize the interaction between the trainer and the trainees.


ISI Hellas's technical support infrastructure is fully equipped, assuring the proper and uninterrupted operation of all our systems. Throughout the systems' guarantee and life-cycle periods, ISI Hellas offers the following services.

  • Corrective Maintenance.
  • Preventive Maintenance.
  • Help Desk.
  • Modifications and Redesign.
  • Repairing and Spare parts Management.

After Sales Support

ISI Hellas's team of expert engineers and technicians are fully committed to quality, technology awareness and domain knowledge and keep abreast of the latest technological developments. Utilizing the feedback received from our customers we are able to offer solutions for the improvement of our delivered systems and the expansion of the systems' operational use, thus helping the customer realize the greatest return on investment.


As a result of its significant system development experience and R&D programs, ISI Hellas is able to provide, off the self, a set of standard data link and simulation related products. These can be provided and configured as stand-alone software applications, single or multiple data link applications on a card, or complete integrated systems with tactical displays suitable for land, sea or airborne platforms.

These include:

  • Standard Data Links: such as, Link 1, Link 11A, Link 11B, Link 16, IJMS and ATDL 1.
  • Mission Integration & Management System (MIMS): which is an integrated mission/combat system for all types of Maritime Patrol Aircraft (MPA) aircraft and applications, that has been designed and developed in its entirety by ISI Hellas. MIMS is an open architecture system that interfaces with any combination of sensors (Radar, EO/IR, EW/ELINT, ASW/ACINT, MAD, AIS etc.), with tactical data links (Link 11, Link 16, Link 22 or any other NATO or National data Link desired by the customer), with the aircraft’s weapon systems and its tactical subsystems (INS/GPS, FMS etc.). The system manages the data from all the various sensors and subsystems, performs data fusion and creates the Common Operational Picture which is presented to the Tactical Coordinator (TACCO), providing him with the capability to perform his surveillance, identification and command & control tasks.
  • Universal Link System (ULS): a sophisticated data link router and forwarder that can be configured to include all NATO standard Data Links in any combination required by the customer. The system provides scalability and expandability from a single data link unit to a multi-link network centric hub for an air defense command center. The ULS is capable of supporting multiple consoles for C3I functions and can be configured to accept multiple sensor inputs such as ESM and Radar. The system performs seamless forwarding of data between and among the active data links and provides a robust filtering scheme that can be applied to any data link.
  • Multiple Tactical Data Link Planning System (MTPS): that implements an advanced Joint and Coalition Planning Capability (JCPC). The system is capable of planning single link and multi-link architectures for any or all of the common data links in use by Coalition Forces today and automatically generates the OPTASKLINK by consolidating the inputs from various network plans. The MTPS is easily expandable for the addition of new data links, such as Link 22.Universal Test and Training System (UTTS) that provides a Distributed Interactive Simulation (DIS) based, comprehensive, time synchronized, simulation capability for testing Tactical Data Systems (TDS) and training the operators for those systems. The UTTS provides scripted stimulation of all TDS external interfaces in an interactive environment.
  • High Frequency Implementation Solution (HFIS): special equipment that allows a unit to operate in a Link 11 network with non-co-located receiver and transmitter and a single Data Terminal Set (split-site) as either Net Control Station or a Participating Unit.
  • Simulators and Trainers: for all of the standard NATO Data Links.
  • Radar Video Simulator (RVSM): that provides realistic tracks and plots, in digital or PPI video, based on scripted digital simulation data.


ISI Hellas’ continuing accumulation of operational and technical expertise provides the basis for evolutionary development of cost-effective and innovative products. Over the years the Company has built a solid reputation for quality products and services in the following areas:

  • Simulators/Trainers for Tactical Mission Systems and Radars.
  • Embedded Tactical Trainers – for Naval ships’ Combat Information Center (CIC).
  • Mechanical Design of Ergonomic Tactical Consoles.
  • Integration of Commercial and Tactical Equipment.
  • Specification and Design of Custom Data Links.
  • Development of Real-time Embedded Software Applications.
  • Specialized Training in Operations and Maintenance of Tactical Systems.


Since its creation, ISI Hellas has developed and delivered the following systems for land, air and naval military applications. These systems are based on COTS (commercial-off-the-shelf) elements ruled by highly demanding military, industrial and environmental standards. Software development process is in accordance to DOD MIL STD 498 Guides and Software is written mainly in ADA and C/C++.


To the US NAVY-SPAWAR Organization: A Transportable Universal Link System (ULS) with Link 11 software licenses.


To the Navy of a Southeast Asian Country:


  • A real-time Tactical Command and Control System (MIMS) for the Maritime Patrol Aircraft.
  • A real-time Simulator/Trainer for the Mission Systems of the Maritime Patrol Aircraft.
  • An Embedded Battle Tactical Trainer – a real-time trainer installed in war ship’s Combat Information Center.


To a Mid Eastern Country: A Data Link buffer/translator that connects their Air Defense Network to a Regional Network.


To a Northeast Asian Country:

  • A system of 55 Data Link processors, incorporating three (3) Standard Data Links, thus enabling their Navy to integrate their Air Defense Systems with their Command Systems and Centers.
  • A custom Data Link that included the design and implementation of a high speed digital information link for use with a medium range Surface to Air Missile System.


To the Australian Army: A Classroom Based Trainer through simulation of the AN/TPQ 36 radar’s capabilities and functions as subcontractor to Raytheon Australia for the Life of Type Extension Project of the AN/TPQ 36 Weapon Locating Radar.


To the Hellenic Armed Forces:

  • A Universal Link System (ULS), a sophisticated data link router and forwarder for Link 16, IJMS, Link 11, Link11B, ATDL 1 and Link 1, that includes a Tactical Display and C2 functionality, incorporating Radar data and thus providing the Hellenic Air Force’s Command and Air Defense Centers with a common recognized Tactical Air Picture vital to the operational decision-making.
  • A ground entry station that provides two-way connectivity between the ERIEYE Airborne Early Warning and Control (AEW&C) and the Hellenic Air Force’s existing Air Defense Command Centers.
  • A Mission Training System, a real time trainer for the Mission Systems of the AEW&C aircraft.
  • A Software Support Center, a ground-based environment to modify software and test software changes for the mission systems before installing the software in the AEW&C aircraft.
  • A Link Simulator used to simulate and test all the interfaces between the Data Link processor and the Command and Control System of the AEW&C aircraft.
  • A Data Link Manager, embedded software within the Command and Control System of the AEW&C aircraft.
  • A Firefinder Classroom Trainer (FCT), a real time trainer/simulator for the Hellenic Army’s TPQ-37 Firefinder Radar, able to train up to six (6) operators simultaneously.
  • An Ammunition Management Information System (AMIS) that automates all the Hellenic Army’s Ammunition inventory, control and ordering functions.
  • A Hellenic Air Force Management Information System that automates all the activities and procedures of the HAF’s repair depots (under implementation).
  • A Military Message Handling System (MMHS), which automatically distributes and handles all the messages generated and circulated within the Hellenic Armed Forces.
  • A Universal Link System (ULS), a sophisticated data link router and forwarder for Link 16, IJMS, Link 11, Link11B, ATDL 1 and Link 1, that includes a Tactical Display and C2 functionality, incorporating Radar data and thus providing the Hellenic Air Force’s Command and Air Defense Centers with a common recognized Tactical Air Picture vital to the operational decision-making.


ISI Hellas S.A.

  • Kritis & Gravias 12, 164 51 Argyroupoli, Athens, Greece
  • +30 210 964 7756 
  • +30 210 963 4892 
Add to favorites