Oregon Extract Supplies

Building Confidence and Trust through Engineering Excellence, Marquess & Associates strives to exceed the unique needs of each Client while benefiting the communities we serve.Continually growing knowledge, experience, and resources to maintain professional leadershipFounded 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.

Environmental and civil engineers, scientists and design professionals dedicated to providing personal service, proven solutions and leading edge technology. Please note the second office is at Suite 216 in the professional building at 1867 Williams HWY, Grants Pass, OR, 97527.

State-of-the-Art Water Control Equipment