SHANNON & WILSON INC

Shannon & Wilson Inc. specializes in geotechnical engineering and geophysical surveying services, delivering field-based subsurface investigations and site characterization for critical infrastructure projects. Their technical expertise includes geologic exploration, geotechnical site surveys, and mapping of subsurface conditions to support civil and defense engineering design, particularly in challenging environments such as remote Alaskan terrain. The firm applies advanced geophysical methods to assess soil stability, rock formations, and groundwater conditions, enabling safe and resilient foundation design for transportation and military installations. Their work on historic highway preservation and base infrastructure projects demonstrates a nuanced understanding of site-specific geology and regulatory constraints, positioning them as a trusted provider of field-engineered solutions where data accuracy directly informs structural integrity and long-term performance. The company maintains a consistent presence with the Department of Defense and the Department of Transportation, providing engineering and survey services for military base development, geotechnical assessments of critical facilities, and transportation corridor planning. For DoD, they deliver subsurface characterization for construction and remediation efforts; for DOT, they support transportation infrastructure resilience through geophysical mapping and expert witness services tied to historic preservation compliance. Shannon & Wilson Inc. operates primarily under NAICS 541330 (Engineering Services) and 541360 (Geophysical Surveying and Mapping Services), focusing on applied earth sciences in support of public infrastructure. Their market positioning centers on site-specific geotechnical intelligence, bridging field data collection with engineering analysis for federal construction and environmental compliance projects. As a small, privately held firm headquartered in Seattle, WA, Shannon & Wilson Inc. maintains a regional footprint with national reach through project-based deployments. The company holds no formal government certifications but leverages technical credibility and domain-specific experience to secure contracts in high-compliance federal markets.