About Us

With more than 40 years of experience providing quality consulting, planning and engineering services throughout the Northwest, T-O Engineers can provide you with a level of expertise and network of contacts you would expect from a large firm while providing you with the responsive, personalized service you expect from a local company.

We have more than 70 individuals in Meridian, Nampa, Coeur d'Alene, Idaho and Spokane, Washington, ready to provide you with the responsive service you deserve. We are a company that believes in providing our clients with innovative solutions delivered with a focus on integrity and responsiveness from start to finish. We will work to understand you, your goals and your projects so we can serve as an extension of your staff to help make your projects a success. We only succeed when you succeed!


T-O provides professional services in the following areas:

  • Licensed to provide professional services in Idaho, Washington, Oregon, Montana, Nevada, Utah, California and North Dakota.
  • Airports 
  • Roads and bridges
  • Land development
  • Landscape architecture
  • Water treatment, storage and distribution
  • Wastewater collection and treatment
  • Flood plain studies
  • Finance administration
  • Recreational planning and landscape design
  • Construction administration and management
  • Quality control inspections
  • Environmental/cultural resource studies
  • Hydrology and hydraulics
  • Wetlands delineations
  • Permitting
  • Surveying and mapping