LEI Engineering & Surveying is a full service civil engineering, land surveying forest engineering, and forestry firm that has been operating throughout the Pacific Northwest and southeast Alaska for more than three decades. Founded in 1981, LEI provides professional services to the private and public sectors including federal, state, and local government agencies. It currently operates a corporate office in Salem Oregon, and branch offices in Springfield Oregon, and Spokane Washington.

LEI maintains a staff of 15 professionals and technicians, with additional seasonal and temporary professional and technical personal as project demands dictate. It also has the capability to draw on a pool of semi-retired professionals who maintain a close business relationship with LEI as associates. With decades of experience servicing public agencies, highly skilled staff, and highly accomplished associates; LEI is able to provide its clients with industry leading and cost-effective professional services with a focus on client satisfaction.