Civil EngineersLEI Engineering & Surveying of Oregon 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 Engineering & Surveying of Oregon 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.

LEI Engineering & Surveying of Oregon maintains a staff of 10 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 Engineering & Surveying of Oregon as associates. With decades of experience servicing public agencies, highly skilled staff, and highly accomplished associates; LEI Engineering & Surveying of Oregon is able to provide its clients with industry leading and cost-effective professional services with a focus on client satisfaction.


The business was founded in 1981 by Dallas C. Hemphill, P.E., ACF, and was known at this time as Logging Engineering International, Inc (LEI). The Eugene-based company quickly became a leader in the Logging Engineering and Forest industry under Mr. Hemphill’s leadership, as it gained a reputation for providing unparalleled logging systems and transportation engineering services throughout the west coast and offshore.
Through the late 1980s and 1990s, LEI continued to grow in reputation and size, undertaking large scale logging systems and transportation planning and field verification projects in extremes of isolation, climate, terrain, timber types and culture. Fielding teams as large as 25 professionals, LEI established a solid track record throughout the Pacific Northwest, from the Southern tip of South America to Siberia and Alaska and along the rugged terrain of many tropical and temperate locations.
In the early 2000s, LEI began diversifying its professional services by adding a licensed Land Surveyor to its team of professionals. As with its track record in the Forest Industry, LEI quickly gained a reputation for excellence in the field of Land Surveying. Under new ownership, which included President Greg J. Zartman P.E. who worked under Mr. Hemphill's leadership for more than a decade, LEI ushered in continued growth and diversification by adding the field of civil engineering to its list of professional services in 2007. Recognizing that LEI was no longer a firm serving only the forest industry, but now a diverse firm providing industry leading services to city and county entities, the construction industry, state agencies, and the forest industry – LEI became LEI Engineering & Surveying.
As the company continued to evolve over the next decade in both ownership structure and with a clientele balanced across Civil Engineering, Land Surveying, Forest Engineering & Forestry, the current owners ushered in the formation of LEI Engineering & Surveying of Oregon. This included long time owner Jamie Van Agtmael taking leadership of the business as President in 2020. Mr. Van Agtmael worked under the direction of former President and current Principal Engineer Greg Zartman as Survey Manager since 2008.
Today, LEI Engineering & Surveying of Oregon’s mission is the same as it was at LEI’s inception more than 30 years ago: Provide unparalleled professional services with a focus on client satisfaction. The LEI Engineering & Surveying of Oregon team takes pride in their rich history of engineering excellence and value as they stand ready today to address your civil engineering, construction engineering, forest engineering, forestry and land surveying project needs.

Oregon Owned and Operated

Since 1981, LEI Engineering & Surveying of Oregon has been an Oregon locally owned and operated company.  This means LEI principals and staff are invested in the local communities and they are also experienced with local operators and construction practices.  Many of our staff and principals are football coaches, baseball coaches, ministry leaders, community leaders, volunteers, and otherwise active in the community.  We at LEI Engineering & Surveying of Oregon take great pride in our long and rich history in Oregon. We work with our clients to achieve the results they desire, while also working hard to enrich our community.   When you hire LEI Engineering & Surveying of Oregon, you can be assured that your satisfaction will be our top priority and we will work with you to improve our community together.