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Welcome to our “History” page.

ONEX SA was established in 2004 under the name Defencom SA and became ONEX HELLENIC SA in January 2008. At the end of 2012 the company became ONEX SA.







ONEX’s driving force for development, expansion and innovation was always characterized by eagerness to provide tailor made solutions to its customers so as to optimize their companies’ productivity and business value:

Our Milestones

2007: We invest in training and operating our Business Service Center.

2008: We invest in engineering and prototype design security systems for critical infrastructures.

2009: We invest in a large scale Digitization Service Center in Greece.

2009: Entry in Nanotechnology Market (GLONATECH SA).

2010: We successfully produce the very first quantities of the highest purity, nanotubes worldwide.

2010: We invest in establishing a high expertise team in MRO & Aero structure services.

2011: We invest in establishing one of the most “state of the art” laboratories for nanomaterial in the region.

2011: We invest in acquiring one of the most experienced teams in the region in telecommunications engineering and consulting.

2012: We invest in establishing the first nanotube industry in the region

2013: The US company ONEX Technologies INC. is established in New York

2013: ONEX launches a new representation office in Brussels

2014: ONEX SA is selected as one of the final 100 best European Companies and receives the honorary title “Ruban d’ Honneur”

2014: Panos T. Xenokostas, ONEX SA President & CEO, is nominated (among 10 finalists) for the Best European Entrepreneur at the 2014 European Business Awards, in Athens, Greece.

2015: Panos T. Xenokostas, is awarded as one of the 10 best Entrepreneurs in Europe, for the second consecutive year, at the European Business Awards 2014/15 in London.

2016: Market penetration in North & Western Africa Market

2017: Contract Award for the delivery of an Integrated Border Surveillance System for 4 European Countries 

2018: Onex Syros Shipyards a subsidiary of Onex Shipyards acquires the Neorion – Syros Shipyards the third bigger shipyard in Greece

2019: Contract Award for the delivery of the first Smart Parking System in Greece for the municipality of Athens

2019: Successful integration and delivery of ONEX C3I system to the Police forces of Spain, Finland, Romania & Spain which will increase the situational awareness of European Lana Borders

2019: Contract Award for the repair, maintenance and upgrade of 2 floating docks of the Hellenic Navy

2019: completion of Neorion Shipyards rehabilitation plan by Onex shipyards and the first phase of $20M investment, creation of 600 hundred jobs and historical performance record for Greek shipyards (more than 150 ships since shipyard’s turnaround)

2020: Partnership between Onex shipyards and Israel Shipyards for the Co- Production of the Themistocles Corvette in ONEX Neorion Shipyards.

2020: donation to the Hellenic Army of the ONEX NEORION HERMES XIX fast patrol river boat with embedded high end sophisticated surveillance system a donation of one million USD value

2020: Onex Elefsis shipyards’s a subsidiary of Onex Shipyards reaches to an agreement to acquire the Elefsina shipyards, second bigger shipyard in Greece, through a rehabilitation plan following the successful model of Onex Neorion shipyards

Thank you for visiting our “History” page.

For your questions and inquiries please email us here.