Collaboration, science, and progress
Shannon & Wilson is an employee-owned consulting firm headquartered in Seattle, Washington. Committed to technical excellence and high-quality service, we provide integrated geotechnical engineering, engineering geology, environmental, and natural resource services for clients worldwide. Since 1954, we have delivered comprehensive engineering and environmental solutions for the most challenging infrastructure planning, design, permitting, and construction conditions.
We are dedicated to improving our communities, preserving the environment, and utilizing the most innovative science practices in all our work.
Our history
Shannon & Wilson was founded in 1954 as a partnership between William L. Shannon and Stanley D. Wilson.
The two met at Harvard University, where Stan was a graduate student and Bill the director of a major research project. It was an exciting time to be at Harvard. A revolution in civil engineering was underway, and radically new concepts were taking shape in soil and rock mechanics under the direction of Professor Arthur Casagrande, a leading figure in geotechnical engineering. He and his colleagues were in the vanguard of a newly evolving discipline, establishing many of the early principles of what later came to be known as geotechnical engineering.
Bill and Stan's innovations continued in the years immediately after founding Shannon & Wilson. As a young company, they made important advancements in instrumentation, soil and rock mechanics, landslide stabilization, and earthquake engineering. As a result of this work, both are recognized throughout the world as pioneers in their field.
The company Bill and Stan founded has grown to more than 300 employees in 14 offices nationwide. We are structured such that we combine local knowledge with national expertise to deliver technical excellence, innovation, service, and value to our clients on each and every project. The high standard of quality Bill and Stan established remain the cornerstone of Shannon & Wilson's business philosophy today.
We at Shannon & Wilson are proud of our company's history and of the important contributions Bill and Stan made to the field of geotechnical engineering. In recognition of their achievements, each year Shannon & Wilson sponsors the Stanley D. Wilson Memorial Lecture at the University of Washington, the Stanley D. Wilson Fellowship at the University of Illinois, and the William L. Shannon Fellowship at the University of Washington.
Our geotechnical engineers provide a wide range of services, including site investigation, foundation design, slope stability analysis, and earthquake engineering. We have a deep understanding of the complexities of soil and rock mechanics, and we are committed to providing our clients with the most innovative and cost-effective solutions.
We offer a comprehensive range of environmental services, including site assessment, remediation design, and construction oversight. Our team of environmental professionals has extensive experience in addressing a wide range of contaminants, including petroleum hydrocarbons, heavy metals, and pesticides.
We provide expert services in the assessment and mitigation of geologic hazards, including landslides, earthquakes, and volcanic activity. Our team of geologists and geotechnical engineers has a deep understanding of the processes that cause these hazards, and we are committed to providing our clients with the most effective solutions to protect their assets and communities.
We provide a wide range of services related to natural resources, including water resources management, environmental permitting, and ecological restoration. Our team of natural resource professionals has extensive experience in working with a variety of ecosystems, including wetlands, forests, and grasslands.
We offer a comprehensive range of water resources services, including groundwater modeling, surface water hydrology, and water quality assessment. Our team of hydrogeologists and water resource engineers has extensive experience in addressing a wide range of water resource challenges, including drought, flooding, and water pollution.
We offer design-build services for a wide range of infrastructure projects, including roads, bridges, and buildings. Our team of engineers and construction managers has extensive experience in delivering projects on time and within budget.
We provide expert services in the design and construction of tunnels and underground structures. Our team of engineers and construction managers has extensive experience in working in challenging underground environments.
We offer a wide range of services related to Arctic engineering, including permafrost engineering, cold weather construction, and environmental assessment. Our team of engineers and scientists has extensive experience in working in the harsh and challenging conditions of the Arctic.
We provide construction management services for a wide range of infrastructure projects, including roads, bridges, and buildings. Our team of construction managers has extensive experience in overseeing all aspects of construction, from planning and design to execution and closeout.
- Advanced Equipment & Technology
We offer competitive pricing and strive to provide the best value for your investment.
- Commitment to Excellence
Our commitment to quality and customer satisfaction has earned us recognition within the industry.
- Free Estimates & Consultations
As a local company, we possess in-depth knowledge of the area and its specific excavation requirements.
