OTE S.A.
Hellenic Telecommunications Organization S.A. is the incumbent telecommunications provider in Greece, and together with its subsidiaries forms one of the leading telecom groups in Southeastern Europe.
http://www.ote.gr

ZITI Publications
Ziti is a company with 50 years of history in publications in Salonica, Greece, now having bookstores both in Salonica and Athens.
http://www.ziti.gr

ION Publications
Ion is a large publications company specializing in technical and educational books.
Athens, GREECE
http://www.iwn.gr

AtticaTech Ltd.
AtticaTech specializes in Information Technology, Conference Management Software, Systems Integration, Website design and Professional Technical Support.
Athens, GREECE
http://www.atticatech.com