The following companies have employees that have completed the Westermo Engineering Course. A Westermo Certified Engineer will be more effective at solving network problems and also be able to provide better presales support to customers.

• ABB
• Advid System West, Australia
• APD Engineering, West Australia
• Arc Infrastucture, West Australia
• Ashdale Engineering
• Atlas Copco
• Aurecon, Australia
• Beijer Electronics, Sweden
• Bersanini, Italy
• Bintz Technics, Belgium
• Easy World, U.A.E
• El Gev, Israel
• Epiroc
• Epiroc, Australia
• Euro Tech, Hong Kong
• Excergi
• FCC, Czech Republic
• Focon
• Fortum, Sweden
• Global Communications Services, West Australia
• GPA Engineering, Australia
• Gross Automation, USA
• HIMA, Australia
• Hitachi Rail, Australia
• HŽ Infrastruktura, Croatia
• IAC Ltd
• Incom, Denmark
• Končar-KET, Croatia
• Last Mile Communications, Norway
• Latek
• Mælibúnaður
• Microstar
• Modelec, The Netherlands
• Motherwell, West Australia
• Ocmis Ltd
• Omron, Spain
• R2P
• Rittbul, Bulgaria
• Rolls Royce Marine
• Skövde Energi
• Somerset County Council
• Speno Rail, Australia
• Stirling Technical
• Sydney Rail, Australia
• Tekniska Polska, Poland
• Tekraco, Malta
• Teleste
• Throughput, South Africa
• Tier Sixteen, West Australia
• UGL, Australia
• Växö Energi
• Vector InfoTech
• Welsh Water
• Westcon, Brazil
• Xceltra, UAE
• Yandex, Russia