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Defenco's Management

Operations at DEFENCO Co., are led by Constantin Valassakis, having over 20 years of experience as a representative and consultant to leading foreign firms in the business field.
Constantin Valassakis

Constantin Valassakis is the General Manager of the company holding a Masters in Economics.

George Stelloudis
George Stelloudis, retired Admiral of the Hellenic Navy, is our Navy Projects Manager.
Stavros Tsatsos
Stavros Tsatsos, holding a degree in Economics acts as Business Development Manager and Head of the Logistics department.
Jason Atkinson
Jason Atkinson is the Business Development Manager working with foreign companies.
Stilianos Christodoulou
Stilianos Christodoulou is the Technical Manager of the company holding a degree in Electrical Engineering, and he is the administrator of the parts and products Warehouse Management.
Chrysostomos Psaroudakis
Chrysostomos Psaroudakis is the Information & Technology Director of the company and Quality Assurance Manager, holding a degree in Banking and Financial Management, along with a MBA in Risk Management, and a MIT distinction.
Peter Antakis
  Peter Antakis is the IT Manager of Defenco, Deree College graduate, having a long term Information and Technology background.


Defenco Protects the Environment and is contracted with the Hellenic Recovery Recycling Corporation
Defenco is working under Industrial Security and Safety Certification.

The company and its personnel are NATO Cleared and the company is an Official Supplier of the Hellenic M.O.D under NATO Cage Code G1679.