CTI provides a broad range of construction inspection, materials testing, and geotechnical engineering services in Oregon and Washington. Founded in 1976, CTI now employs over 180 people. We are certified by the Oregon Building Officials Association, Washington Association of Building Officials, the City of Portland, the City of Corvallis and the Oregon Department of Transportation. Our Tigard, Bend and Salem CTI laboratories are nationally accredited by the American Association of Laboratory Accreditation (A2LA). We offer rapid response, practical design, and reasonable fees. If you would like more information on how we can assist you with your future projects, please see the contact information for our main office in the Portland metro area and our branch offices in Salem, Eugene and Bend.
Carlson Testing, Inc. was incorporated in 1976 as a construction inspection and materials testing firm although the organization dates back to 1972 when Douglas and Susan Leach started the firm as the Portland branch office of Carlson Construction Consultants of Seattle, Washington.
In 1976, Mr. and Mrs. Leach purchased the Portland office and formed the new, independent corporation under the name Carlson Testing, Inc. (CTI).
Since that time, we have served the construction market in Oregon and Southwest Washington and provided our services to thousands of private clients including owners, developers, construction contractors, engineers and architects as well as public entities ranging from local school districts and municipalities to the Oregon Department of Transportation, Federal Aviation Administration, and US Army Corps of Engineers.