Structural, Civil and Seismic Engineering Services. In 2019, Coughlin Porter Lundeen celebrated 25 years of successful partnerships throughout the Puget Sound. We pride ourselves on providing a level of service and quality that is unmatched in the region. We work in many market sectors on both public and private building projects. Our clients include Microsoft, Amazon.com, Vulcan, Boeing, Children’s Hospital, Virginia Mason, Starbucks, Washington State University, and the University of Washington.