Carlson Testing

Carlson Testing Inc (CTI) has been providing special inspection and materials testing services with Oregon for 40-years. The firm of CTI was established in 1976 as a construction special inspection and materials testing organization. Originally, Doug Leach and Sue Leach started the firm in 1972 as a branch office of Carlson Construction Consultants of Seattle, Washington. With their great success in the Portland-Metropolitan area, Mr. & Mrs. Leach purchased the Portland office and ultimately changed the name to Carlson Testing, Inc. In 2008, Doug & Sue retired and sold the business within the family and the next generation began.

In addition to our Tigard (Corporate) office, CTI has office and laboratory facilities in Salem, Eugene, and Bend + mobile laboratories.

Corporate wide we have approximately 130 technical specialist including special inspectors licensed by the Oregon Building Officials Association, City of Portland (COP), and Washington Association of Building Officials, AWS certified welding inspectors, certified non-destructive testing and nuclear densometer technicians, and professional engineers, engineering geologist and geologist. The breadth of expertise allows CTI to provide the full range of construction special inspection, materials testing, and geotechnical engineering services.

As an organization, no other firm can match CTI's depth or breadth of experience in inspection and testing. Further, this experience is not just the experience of the company. Our key management personnel all have over 20-years of experience in providing the services in the Northwest. Our special inspectors have an average experience level of over 11-years. As a result,CTI and our individual staff members have an unusual level of experience working with local codes and regulations along with a long history of working side-by-side with the same contractors, engineers, architects and building officials who will be involved in the project.