Based in Seattle, Shannon & Wilson is a geotechnical and environmental consultant agency. It employs more than 200 scientists, engineers and technicians in the Puget Sound area. The agency provides assessment, remediation and monitoring, as well as other environmental services. It has completed geotechnical service projects throughout the United States and responds internationally to natural disasters. Shannon & Wilson also offers railroad services, including environmental studies on the impact of railroad emergencies. It has offices in Alaska, California, Colorado, Florida, Missouri, Oregon and Washington.