Christos Leonidas Ioannou

J&P Development SA provides real estate development and investment services. The firm focuses in the residential sector developing projects of urban properties and holiday homes. It also offers property management services. The company was founded in 1990 and is headquartered in Athens, Greece.

Part of Avax SA (Greece), Proet SA is a Greek company that provides construction services. The company is based in Athens, Greece. Proet was acquired by Avax SA (Greece) on September 11, 2001.

Smile SAS offers web architecture and open source software integration solutions. It provides digital, business applications, embedded system, internet of things, infrastructure, and outsourcing services. The company was founded by Jérôme Prompsy, Cyrille Chignardet, Alain Arditi, and Patrice Bertrand in 1991 and is headquartered in Asnieres-sur-Seine, France.

Part of Joannou & Paraskevaides (Overseas) Ltd., Conspel Construction Specialist (Isle of Man) Ltd. operates as an engineering, procurement and construction contractor. The company is based in Ramsey, UK.

Attikes Diadromes SA is a company based in Paiania, Greece that spreads the message of road safety through their e-Learning version of the popular "Eyes Open on the Road!" seminar. The Greek company is ultimately controlled by the Government of France. The company was founded in 1999 and the CEO is Vasileios Michail Chalkias.

Part of Avax SA, Volterra SA (Greece) engages in trading and supply of electricity & natural gas. The company is based in Marousi, Greece. The Greek company was founded in 2007. The CEO is Panagiotis Konstantinos Nikou. Volterra SA (Greece was acquired by Avax SA from Nuova Sorgenia Holding SpA on January 27, 2017.