Raba Kistner, Inc. provides services that require precision and, ultimately, performance excellence. We are committed to continually training employees and testing our equipment in order to ensure that our practices and procedures continue to be trusted by clients on every project. We are a long-standing member of the Texas Council of Engineering Laboratories (TCEL), which represents laboratories engaged in construction inspection and related quality assurance testing. We also are accredited by The American Association of State Highway and Transportation Officials (AASHTO), The American Association Laboratory Accreditation (A2LA), and The US Army Corps of Engineers, among others, which confirms that our laboratories meet rigorous standards for testing and analysis procedures, as well as equipment calibrations. A comprehensive list of certifications and qualifications is below.