Building Confidence and Trust through Engineering Excellence, Marquess & Associates strives to exceed the unique needs of each Client while benefiting the communities we serve.


  • Client service, satisfaction, and success
  • Honesty and integrity in all aspects of our work
  • Building teamwork through mutual respect and effective communication
  • Improving the built environment of the communities we live in
  • Preserving the natural world around us
  • Using innovative design and new technologies to better meet evolving client needs
  • Continually growing knowledge, experience, and resources to maintain professional leadership

Founded in 1957 by Walter J. Marquess, P.E., Marquess & Associates, Inc. has provided the Southern Oregon Region with over 50 years of engineering excellence. We provide comprehensive professional services to clients in both the public and private sectors. Our goal is client satisfaction and the fact that over 80% of our business is with repeat clients is a gratifying tribute to our commitment to client success.

With complete in-house capabilities, we assemble a team from our full-service staff to match each client’s particular needs. Each team is led by a Project Manager who coordinates all disciplines and is the single point of contact for the Client. Utilizing modern technologies and teamwork, we develop the most timely and cost effective solutions possible. At the present time there are 19 employees including 8 Professional Engineers.

At Marquess & Associates, our capable, experienced staff strive for excellence in service, design, and execution in our continual commitment to client success.

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© 2003 Marquess & Associates, Inc.