The programme consist of the following institutions with concrete and design efforts:
I.  The Department of History and Archaeology of the University of Cyprus has the responsibility for the coordination of the work and the direction of the assembling of archaeological and historiographical material. Specifically, E. Chrysos coordinates the programme and has the scientific responsibility for the written sources of the Byzantine period. D. Triantaphyllopoulos participates in the coordination of the programme and is in charge of the archaeological material from the Byzantine period. Th. Mavrogiannis participates also in the coordination of the work and has the responsibility for the written sources of antiquity. E. Raptou is charged with the assembling and registration of the archaeological material and functions as curator of the programme.    
II.  The Department of Computer Science and the Multimedia research and development lab of the University of Cyprus are responsible of the creation of a network multimedia application for storing, retrieving and presentation of the assembled information. Specifically Christos Schizas is responsible for the development of the multimedia application. George Samaras is responsible for the development of the database system. The development team is composed of Chrystalla Alexandrou (team leader), Achilleas Kentonis (artistic director), Elias Nisiotis  and Andreas Palekis (programmers).    
III.  The  Department of Antiquities of Cyprus supports and cooperates with the programme. Several scientific officers  
work in compiling the detailed catalogues, in searching for material in the archives of the Archaeological Museum, and in authoring entries in the field of their competence.    
IV.  The Archbishop Makarios III Foundation provides the iconographical material from its Byzantine Art collections.    
V. The Archive of Byzantine Monuments of the Archbishopric of Cyprus participates with its director Dr. Athanasios  
Papageorgiou in the selection, analysis and classification of the byzantine material.    
VI.  The Bank of Cyprus Cultural Foundation contributes with the material of the collection of the Cyprus Coinage  
VII. The Department of Geological Survey of Cyprus cooperates in the preparation of the digital map of Cyprus and the relative system G.I.S.     
VIII. The Research Institute of Greek and Roman Antiquities of the Greek National Research Foundation undertakes the following services: the study of the onomastic and prosopographical material, and of the Roman nomina gentium of Cyprus, and the electronic connection with the network ARGOS (on-line service of all the Archaeological Research Schools in Athens).     
IX. The Centre Pierre Paris of the University of Bordeaux III offered the upgraded version of  PETRAE and the adaptation of the programme in Greek and English. In addition two graduate students of this university work on the unpublished inscriptions of Amathus.    
X. The Institut F. Courby of the University Lumiere Lyon II cooperates with Marguerite Yon, director of the French  
Archaeological Mission at Kition – Bamboula, who is providing the programme with the archaeological material from the excavations, the relevant photographical material and drawings and the topographical plans of the site. Therese Oziol cooperates in the assembling and elaboration of the epigraphical material from Kition.    
XI. The University of Munster creates the Data Bank of the Travellers’ reports of Cyprus from the Middle Ages down to the 19th century.     
XII.  The Austrian Academy of Sciences cooperates in the historicogeographical and historicotopographical surveys and in the preparation of the appropriate maps of Cyprus.    
XIII.  The Cultural Centre of Cyprus in Athens offer its facilities in Athens for housing the database in use of it by the scientific public. 

 Nea Paphos, House of Aion, Panel of mosaic floor depicting Nereids, 4th cent. A.D.