Z-A is committed to offer high level of quality services to clients, in line with International codes and standards. The company offers certified Quality Management System according to the requirements of ISO 9001:2015 , ISO 14001:2015 and ISO 22301:2019
June 2025. New Contract for Z&A in Greece related to Deisgn of irrigation network under the name ''Detail Design Study of the Chavria Irrigation Network''.
The project to be studied in detail concerns the land improvement of 24,000 hectares of pure agricultural land, in a gross irrigable area of approximately 26,600 hectares, in the Ormylia plain of South Chalkidiki -Greece.The photo is for the day of signing the contract with the Directorate of Flood Control and Land Improvement
February 2024
Z&A as the leading firm of a J/V signed a new Water Supply related contract in Malawi. The consulting services include detailed designs and construction supervision of Blantyre Water Supply network upgrades. The Consultancy assignment shall be conducted in two phases: Phase 1–detailed design and tender documentation; and Phase 2–construction supervision and DMA establishment and commissioning.
The assignment shall be completed within a period of Fifty- Eight (58) calendar months.
Phase 1 of the consultancy assignment is expected to be conducted over a period of Ten (10) months and Phase 2 over a period of 48 months ths includes 12 months’ defects liability period)
Below the photo of Overview map of the Blantyre main water assets.
The 3 intakes and Water Treatment Plants are:
• Walkers Ferry intake on the Shire River and WTP.
• Mudi Dam intake and WTP
• Lokhubula River intake and Nguludi WTP
[more]
January 2024
The Services to be provided by Z&A are organized in two part: Review the designs and ensure compliance with the technical specification and design solution of the works implemented by the contractor - Supervision of construction works and implementation of safeguard measures - Training activities for stakeholders such as dam committees and district local staff.
[more]DECEMBER 2023
Z&A was invited and did a presentation as part of the postgraduate program "Management of Infrastructure and Construction Projects" that was launched thanks to the partnership between the National Technical University of Athens - School of Civil Engineering and the GEK TERNA Group, which will finance the program for five years with half a million euros.
The MSc Program aims at the specialization of young engineers in the administration and management of infrastructure and construction projects, with the use of new technologies, in further analysing the modern scientific concepts and implementation of techniques related to all stages of the projects' life cycle
The construction of the Kammitsi Dam (29,95 m height (from foundation), and Reservoir Capacity of 1.050.000 m3) in Cyprus continues. A visit by Z&A's Executive Director Mr Panos Antonaropoulos and Z&A's Technical Director Mr Aris Bakalis has taken place today to meet with the rest of Z&A's resident engineers and view real time the progress of works. Z&A is working closely with the client and the constructor for the successful completion of the project following Z&A’s core values Specialization, Integrity, and Excellence.
Following the signing of the contract the assigment has now started. The first meeting and field visit took place on the 28th of November.
November 2023 New Contract was signed by Z&A's Executive Director, Mr Panos Antonaropoulos, as the leading company of a J/V in Cyprus regarding the The Wastewater Collection Network And The Wastewater Treatment Station In The City Of Chrysochous. The photos that follow are from the date of signing the new contract 
On the 7th of November 2023 a successful completion of a workshop took place in Uganda. Photos are from the workshop with Mr Panos Antonaropoulos Executive Director of Z&A and Prof Michael Kavvadas the Geotechnical Expert of the Study.
Mr Panos Antonaropoulos
Prof Micahel Kavvadas
Following the succesfull workshop; on the 8th of November 2023, a Dam training session for junior engineers of MWE Uganda was held. In the photo that follows we can see both Mr Antonaropoulos and Prof Kavvadas on the day of the training
Ζ&A as leader of a J/V, in line with the requirements of the Framework Directive 2000/60/EC (Article 14) organised the public consultation in two different towns (Patras 20 Oct 2023, Kalamata 26 Oct 2023) under the project 2ND REVISION OF RIVER BASIN MANAGEMENT PLANS OF THE 14 WATER DIVISIONS OF THE COUNTRY. Two more meetings will be held . The first one in Corfu (02 Nov 2023) and the second one in Nafplio (10 Nov 2023).
Z&A was represented by Mr Panos Antonaropoulos (Coordinator-Team Leader), Mrs Irene Sakellari (Hydrologist) and Mr Ioannis Katsaros (Hydrogeologist)
On the right: Mr Panos Antonaropoulos
On the right: Mrs Irene Sakellari
[more]On the 15th of September 2023 Z&A attended the Contract Signing Ceremony of the Contractor for the Construction Phase of the Assigment PROVISION OF DESIGN CONSULTANT SERVICES FOR
(A) ADDITIONAL AND NEW STUDIES, (B) PREPARATION OF TENDER DOCUMENTS FOR THE ANNOUNCEMENT OF TENDERS, (C) EVALUATION OF BIDS, (D) SUPERVISION OF THE CONSTRUCTION WORKS OF THE SEWAGE SYSTEM IN GOVERNMENT SETTLEMENTS AND SELF-HOUSING SETTLEMENTS IN LIMASSOL, (E) SUPERVISION OF WORKS WITHIN THE RESIDENCES. Z&A will be supervising the works. 
Mr Aris Bakalis, represented Z&A in the Ceremony
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