Markos Bitsakos

UniSystems Information Technology Systems SA develops software and provides systems integration services. The firm offers services such as consultancy, assessment, software engineering, project managment and support services. Its customers inlcude the banking and finance, public and telecommunication sectors. The company was founded by Constantine A. Doxiadis in 1964 and is headquartered in Athens, Greece.

Info-Quest Technologies SA provides information technology services. The firm offers quest on cloud, q-zone, network infrastructure, network security, remote access, equipment charging time, cost/page prints, interactive whiteboards and autodesk solutions. It provides value added, quest and bitmore products. The company was founded in 1981 and is headquartered in Kallithea, Greece.

Part of Antenna Group SA, Daphne Communications Sa is a Greek company that provides publishing services. The private company is based in Athens, Greece.

ACS International Transport & Facilities Commercial Co. SA provides document and package shipping services. Its services include domestic and international shipment, postal services, money transfer, and shipment insurance services. The company was founded in 1981 and is headquartered in Kryoneri, Greece.

Rainbow Advanced Technological Products & Services Ltd. is engaged in computerized data processing, imports and sales of computers and electronic equipment of any nature, designing and installation of computers, representation of foreign manufacturers of high technology products, computer repairs, computer leasing and others. The company was founded in 1986 and is headquartered in Athens, Greece.

Quest Energy SA operates photovoltaic power stations. The private company is based in Athens, Greece. The CEO of the Greek company is Markos Grigoriou Bitsakos.