RijnDijk Steel Contracting (Budel, NL)
Ballast-Nedam NW (Zaandam, NL)
Patina (Beverwijk, NL)
Bijlbouw (Alblasserdam, NL)
Corus (PRS-CSPY) (IJmuiden, NL)
SVO-Training & Advies (Houten, NL)
HSM Steel Structures (Schiedam, NL)
Boskalis-Westminster (Ras Laffan, QA)
Rolini Constructors C.A. (Caracas, Ven.)
SIM S.p.a. (Priolo Gargallo, Italië)
General Services (Siracusa, Italië)
MS-Design (Roppen, Oostenrijk)
Moody Tottrup Hellas (Athene, Gr)
Truckland (Rotterdam, NL)
Stork-Fokker AESP (Papendrecht, NL)
MHPS Duisburg, Germany
Uniper Datteln, Germany
OTTO-Life Science Engineering, Marburg, Germany
GSK – Marburg (Zoster), Germany
QUA-Vadis heeft ervaring in de volgende branches:
| Offshore | Oil Production: | CNOC | ||||||
| Offshore | Gas Production: | NAM | ||||||
| Onshore | Gas Production: | NAM | ||||||
| Energy | Plant: | E.ON (MPP3) | ||||||
| Chemical | Plastics: | DSM (LoKu) | ||||||
| Food | SVO | CBS | KDS | CBD | ||||
| Waste Management | ATM | VOS | ||||||
| Aerospace | Aircraft: | Stork-Fokker | ||||||
| Shipping | Repairs: | VOS | ||||||
| Certification | QA Systems: | DNV | TüV | BV | KIWA | IKOB-BKB | Pontifex | |
| Certification | HSE Systems: | DNV | TüV | KIWA | IKOB-BKB | |||
| Certification | Competence: | DNV | BV | Pontifex | ||||
| Consulting | Arbo / VCA: | Arbodienst | QUA-Vadis | SIM Srl | ||||
| Consulting | ISO 9001: | SIM Srl | IREM | Van Dijk | Kroes M’land | Hermsen | ||
| Consulting | ISO 22000: | SVO | CBS | |||||
| Automotive | Parts: | MS-Design | ||||||
| Steel | Construction: | HSM | Rijndijk | Sicilmontaggi | Burdock | Lurgi | Linde | |
| Steel | Piping: | Sicilmontaggi | Burdock | Lurgi | ||||
| Civil | Construction: | Rijndijk | Ballast-Nedam | Lurgi | Linde | |||