Lyon Engineering, Inc.

Arizona Office:
3623 Crossings Drive
Prescott, AZ 86305
ph: (928) 776-1750
fax:(928) 776-0605


Map and Directions



Washington Office:
32650 SR20
Oak Harbor, WA 98277
ph: (360) 679-8899
fax:(360) 675-6881


Map and Directions

“An engineering and surveying firms biggest asset is the quality of its employees and how well they work with their clients.” ~ Dean A. Lyon, President

Dean Lyon started his career as an aspiring young engineer before he even graduated from college. Working full-time while attending Arizona State University, he learned first hand the value of hard work and dedication. At the same time he realized that the management philosophy of the larger firms he worked for was counterproductive and de-motivating.

Four years after graduation Dean formed his first company, Lyon & Associates, in 1978. His focus was to employ individuals who had the motivation and dedication it took to become professional engineers and land surveyors. At the same time he wanted his employees to enjoy their chosen profession and be able to have fun on the job. Dean strongly believed that it took more then just hard work and long hours to move up in your career and become a successful professional. It took the freedom to be creative and ambitious, to take pride in ones work, and maintaining an open mind to learning every day of your career.

We at Lyon Engineering are committed to Dean’s original focus and it remains the basis of our success to this day. Opening our doors in 1995, we have designed a multitude of diverse projects covering all facets of transportation, water resources, land development, and planning. Our client base covers an even broader spectrum of companies and individuals including; land developers, general contractors, municipalities, state agencies, and the federal government. Throughout our 13 plus years we have produced safe, quality designs that have helped enhance the community. As a result, Lyon Engineering has grown into the largest locally owned and operated Civil Engineering and Land Surveying firm in the Prescott tri-city area.

How we work for you

Lyon Engineering takes a forward thinking approach to our engineering designs and the staff that produce them. We do not hire CADD technicians or drafters, all of our engineers are trained to produce their own engineering plans and survey calculations. Our clients communicate directly with the engineer of record for the project (a Principal of our firm) and the design engineer who will produce the plan sets, reports, etc. This allows Lyon Engineering to be more timely and efficient in our work while providing a more personal approach to our clients.

Similar to our engineering approach, we do not hire survey technicians (rodmen) with the intention that they remain in that position. We provide the on the job training necessary to become party chiefs and eventually, Registered Land Surveyors. This serves a dual purpose for our firm. It makes our surveyors increasingly efficient and precise in their work while fostering a sense of pride and accomplishment. The result is an exceptional survey staff that consists of highly motivated, professional individuals.