| Name | Country group |
|---|---|
| Rag. Giulio 3494710495 | Italy |
| ANESTIS 6974891072 | Greece |
| P.A. Emiliano Acunzo | Italy |
| Dipl.-Ing. Robert Adamczewski | Poland |
| Per. Ind. Marco Agutoli | Italy |
| Dipl.-Ing. Kai Ahlgrimm | Germany |
| Dipl.-Ing. Jörg Ahlgrimm | Germany |
| Mechanical Engineer Stergios Alatas | Greece |
| Dipl.-Ing. (FH) Marc Albert | Germany |
| Dipl.-Ing. Grzegorz Albrecht | Poland |
| Dr.- Ing. Piotr Aleksandrowicz | Poland |
| Mag. Velimir Alja Aleksic | Serbia |
| Ing. Ismail Alija | Albania |
| Ing. Kujtim Alimerko | Albania |
| Geom. Marco Paolo Alquati | Italy |
| MEng (TAR) Ulf Althaus | Germany |
| Dr.-Ing. Wojciech Ambroszko | Poland |
| Michael Andrews | ITAI - UK - Vereinigtes Königreich |
| Dipl.-Ing. Marek Anioła | Poland |
| Dipl.-lng. Marek Antos | Poland |
| Adrian Paul Armstrong | ITAI - UK - Vereinigtes Königreich |
| Dipl. Phys. ETHZ & MAS Public Management Jörg Arnold | Switzerland |
| Dipl.-Ing. Uri M. Arnon | Germany |
| Ing. Ardian Asa | Albania |
| Cezar Asandei | Romania |