
A Trusted Federal Partner Since 1988
For more than 35 years, ECS has been a dedicated partner to federal agencies, delivering geotechnical, environmental and facilities consulting engineering services both domestically and internationally. From high stakes US military base projects to complex State Department Embassy assignments, ECS has earned a national reputation for excellence in engineering and compliance, consistently supporting the federal government’s projects.
ECS offers a streamlined way for federal buyers to procure our services through our General Services Administration (GSA) schedule. The range of services available through GSA contracts may vary, and we’re happy to discuss the options that meet your needs.
For more than 35 years, ECS has been a dedicated partner to federal agencies, delivering geotechnical, environmental and facilities consulting engineering services both domestically and internationally. From high stakes US military base projects to complex State Department Embassy assignments, ECS has earned a national reputation for excellence in engineering and compliance, consistently supporting the federal government’s projects.
ECS offers a streamlined way for federal buyers to procure our services through our General Services Administration (GSA) schedule. The range of services available through GSA contracts may vary, and we’re happy to discuss the options that meet your needs.

Why ECS for GSA contracts
Our portfolio spans a broad range of government sectors, including infrastructure, environmental compliance and facilities/building science. As a trusted collaborator, ECS plays an integral role on design and construction teams, providing valuable expertise for a wide array of federal projects.
Key federal partnerships
- US Air Force
- Department of Veterans Affairs
- Smithsonian Institution
- Federal Reserve
- US Army Corps of Engineers
- Department of Homeland Security
- US Navy
- Washington Headquarters Service
- US General Services Administration
- National Park Service
- US Department of Agriculture
Why ECS for GSA contracts
Our portfolio spans a broad range of government sectors, including infrastructure, environmental compliance and facilities/building science. As a trusted collaborator, ECS plays an integral role on design and construction teams, providing valuable expertise for a wide array of federal projects.
Key federal partnerships
- US Air Force
- Department of Veterans Affairs
- Smithsonian Institution
- Federal Reserve
- US Army Corps of Engineers
- Department of Homeland Security
- US Navy
- Washington Headquarters Service
- US General Services Administration
- National Park Service
- US Department of Agriculture
ECS services offered through the GSA
SIN 541330ENG Engineering Services
Our facilities consulting service line provides design and installation services for building systems such as roofing systems, curtain walls, foundation walls and subgrade dewatering systems. We also evaluate existing conditions of various building elements and provide recommendations for repair or replacement.
- Roof system design, installation observation and existing condition evaluation
- Property condition assessments
- Structural building-system evaluations
SIN 541620 Environmental Consulting Services
ECS offers environmental services related to evaluation of hazardous materials, archeological features and natural resources, including wetlands and threatened and endangered species. Our capabilities range from due diligence to evaluation and remedial design for environmental issues associated with a site.
- Phase I environmental site assessments
- Phase II environmental site assessments
- Site characterization studies
- Risk assessments
- Groundwater resource assessment and design
- NEPA studies
- Wetland studies
- Archeological assessments
- Hazardous material evaluations and remedial design
SIN 562910REM Environmental Remediation Services
Our experts provide remedial investigation, design, implementation and observation for environmentally related issues such as UST/AST systems, hazardous building materials, former industrial or waste activities and brownfield properties. Assessment and implementation are largely site specific and dependent on various factors associated with the existing conditions of the site, the characteristics of the environmental issues and the pertinent regulations. Our services also include wetlands studies and waterway restoration design and implementation.
- Site assessments
- Remedial design and implementation
- Groundwater remediation
- UST/AST assessment and removal
- Wetland studies
- Water resources studies
- Waterway restoration design and implementation
- Dam removal
SIN 611430 Professional and Management Development Training
Sessions include an array of short duration courses and seminars for management and professional development. Training for career development may be provided to individuals or through employers’ training programs and courses may be customized or modified to meet your needs.
ECS services offered through the GSA
SIN 541330ENG Engineering Services
Our facilities consulting service line provides design and installation services for building systems such as roofing systems, curtain walls, foundation walls and subgrade dewatering systems. We also evaluate existing conditions of various building elements and provide recommendations for repair or replacement.
- Roof system design, installation observation and existing condition evaluation
- Property condition assessments
- Structural building-system evaluations
SIN 541620 Environmental Consulting Services
ECS offers environmental services related to evaluation of hazardous materials, archeological features and natural resources, including wetlands and threatened and endangered species. Our capabilities range from due diligence to evaluation and remedial design for environmental issues associated with a site.
- Phase I environmental site assessments
- Phase II environmental site assessments
- Site characterization studies
- Risk assessments
- Groundwater resource assessment and design
- NEPA studies
- Wetland studies
- Archeological assessments
- Hazardous material evaluations and remedial design
SIN 562910REM Environmental Remediation Services
Our experts provide remedial investigation, design, implementation and observation for environmentally related issues such as UST/AST systems, hazardous building materials, former industrial or waste activities and brownfield properties. Assessment and implementation are largely site specific and dependent on various factors associated with the existing conditions of the site, the characteristics of the environmental issues and the pertinent regulations. Our services also include wetlands studies and waterway restoration design and implementation.
- Site assessments
- Remedial design and implementation
- Groundwater remediation
- UST/AST assessment and removal
- Wetland studies
- Water resources studies
- Waterway restoration design and implementation
- Dam removal
SIN 611430 Professional and Management Development Training
Sessions include an array of short duration courses and seminars for management and professional development. Training for career development may be provided to individuals or through employers’ training programs and courses may be customized or modified to meet your needs.