Koehler Engineering & Land Surveying, Inc. began as a one-man surveying operation in 1976 and has since flourished into a thriving engineering, surveying, geotechnical and materials testing, and environmental services provider. We are a family-owned business employing professional engineers, engineering interns, professional land surveyors, administrative and IT personnel, and laboratory testing technicians. We offer professional services in nine states in the Midwest and Western regions of the United States. We take pride in our company and aim to provide clients with high quality work from the time they request services to their project's completion.