Smart Solutions. Proven Results.

About Us


When you see a beautiful car, speed through the sky on a jet plane, admire your new computer or marvel at the newest medical wonder, chances are you’re not thinking about the engineering and the rigorous testing that assure they work just as intended. But no matter how well designed, well-engineered, and well-constructed – the design is only as sound as the testing to which it is subjected.


That is why engineers, technicians and their companies throughout Western USA and Canada turn to us, W5 Engineering (formerly R Source Corporation) – for reliable, cost-effective test and environmental simulation products before, during, and after the manufacturing process. Additionally, as IoT & Rugged embedded computing experts, W5 Engineering helps customers select, define and design custom and OEM compute products.


So, from aircraft systems, electric vehicles, and fuel cells, to medical equipment, biotech research and classified defense projects – we provide the test equipment, computing resources and reliability consulting needed by today’s most exacting customers.

W5 Engineering’s constant mission has been to understand our customer’s needs and unite them with the most appropriate technologies and innovative products from the best suited resources.

W5 Engineering employs experienced representatives throughout the company’s territory. If you have questions or if we can help you in any way, please contact us:

Corporate Headquarters
W5 Engineering | an R Source Company

Pacific NW/Main Office: (971) 244-8200
Greater Seattle: (425) 321-2757
Northern California: (510) 606-9090
Southern California: (818) 416-3487
Western Canada: (778) 650-5236
USA/Canada Toll Free: (866) 400-1300
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