top of page


Diamond E Testing is a material testing and quality assurance company based in Portland, Oregon, that specializes in Asphalt, Soil, and Concrete. Diamond E Testing's commitment to honesty, integrity, hard-work, and reliability is what sets them apart from the competition. The Diamond E logo is the cattle brand of Tyler Eveson's grandfather, a hard-working WWII veteran who immigrated

from Alberta, Canada, and built his own accounting firm from the ground up. He is the one responsible for instilling the principles listed above in Mr. Eveson, and now his cattle brand is used to remind Diamond E Testing of the principles it was built upon. Let Diamond E Testing show you the difference between simply finishing a job and going the extra mile.

Tyler Eveson

Tyler Eveson has worked in the material testing and inspecting field since he was 17 years old.  He started as a field tester then worked his way up into management positions through continued education and his own merit. Now Mr. Eveson has founded his own material testing and inspecting company dedicated to providing the best service possible for his clients. Mr. Eveson knows the business at all levels and uses his experience to make sure every client receives outstanding service from the office to the job site. 

bottom of page