- The Ministry of Infrastructure and Transport
- The Ministry of Environment and Energy
- The Ministry of Development and Investments
- The Ministry of Agricultural Development and Food
- The Ministry of Transport, Communications and Works (Cyprus)
- Public Enterprise for State Roads (North Macedonia)
- Public Enterprise Railways Infrastructure (North Macedonia)
- The Ministry of Finance (North Macedonia)
- The Organization for the Development of Crete S.A. (O.A.K. S.A.)
- Prefecture of Eastern Macedonia & Thrace
- Prefecture of Central Macedonia
- Prefecture of Epirus
- KEFALONIA & ITHACA DEVELOPMENT SA
- SAR Saudi Railway (Saudi Arabia)
![client-1](https://adtomega.gr/wp-content/uploads/2021/04/client-1.jpg)
![client-2](https://adtomega.gr/wp-content/uploads/2021/04/client-2.jpg)
![client-3](https://adtomega.gr/wp-content/uploads/2021/04/client-3.jpg)
![client-4](https://adtomega.gr/wp-content/uploads/2021/04/client-4.jpg)
![client-5](https://adtomega.gr/wp-content/uploads/2021/04/client-5.jpg)
![SDR-2441](https://adtomega.gr/wp-content/uploads/2021/04/SDR-2441.jpg)
![client-7](https://adtomega.gr/wp-content/uploads/2021/04/client-7.jpg)
![client-8](https://adtomega.gr/wp-content/uploads/2021/04/client-8.jpg)
![client-10](https://adtomega.gr/wp-content/uploads/2021/05/client-10.jpg)
![client-11](https://adtomega.gr/wp-content/uploads/2021/05/client-11.jpg)
![client-12](https://adtomega.gr/wp-content/uploads/2021/05/client-12.jpg)
![client-13](https://adtomega.gr/wp-content/uploads/2021/05/client-13.jpg)
![client-14](https://adtomega.gr/wp-content/uploads/2021/05/client-14.jpg)
![client-15](https://adtomega.gr/wp-content/uploads/2021/04/client-15.jpg)
![client-16](https://adtomega.gr/wp-content/uploads/2021/04/client-16.jpg)
- EGNATIA ODOS SA
- The Hellenic Railways Organization SA
- OSE SA (Hellenic Railways Organization SA)
- ERGOSE SA (Subsidiary of the Hellenic Railways Organization SA)
- ATTIKO METRO SA
- TRAM SA
- NEA ODOS SA
- DRAGADOS SA
- FERROVIAL AGROMAN SA
- AKTOR S.A
- TERNA SA
- THESSALONIKI DEVELOPMENT SA
- Hill International N.V.
- AECOM Ltd