Chinook Engineering provides its services to a variety of clientele from individuals and private associations to large corporate and government entities. The following list contains just some of the clients Chinook Engineering staff has served and continues to serve:

Government, Non-Profit:

US Army Corps of Engineers, Portland Office

Northern Southeast Regional Aquaculture Assoc.

Snohomish County Conservation District

Pierce County Conservation District

Adopt-a-stream Foundation

Truckee Meadows Water Authority

Washington State Recreational Conservation Office

Washington State Department of Natural Resources

Corporate:

Seattle City Light, Environment, Health and Safety Division

Sierra Pacific Power Company

International Paper

Weyerhaeuser Company

  Northwest Native American Tribes:

Colville Confederated Tribes

Kootenai Tribe of Idaho

Lower Elwha Tribe, Point-No-Point Treaty Council

Makah Tribe

Nisqually Indian Tribe

Puyallup Tribe of Indians

Quileute Tribe

Skagit System Cooperative

Stillaguamish Indian Tribe

Squaxin Island Tribe

Tulalip Tribes

Yakama Indian Nation

Lummi Nation