The core of C&S’s business has always been our valued municipal and government clients.


Nick Cerro

Our clients include every level of government, from towns and cities to counties and states to federal agencies. We also work with school districts and colleges and universities. Our professionals provide responsive and reliable service to support our nation’s infrastructure, delivering agile, creative solutions—whether the assignment is mission-critical or support-strengthening. From planning and design to program management, construction management, and construction, we focus on the right solution at the right time and place. We offer flexibility in contracting and delivery methods, from IDIQs, MATOCs, and GSA schedules to contractor-led design-build partnerships, public-private partnerships, and integrated project delivery. C&S has worked with many federal and military agencies through IDIQs and IDCs, and on stand-alone projects, including:

  • Department of Defense ( Air Force, Air National Guard, Army Corps of Engineers, Naval Facilities Engineering Command)
  • Department of Energy
  • Department of Homeland Security, including US Coast Guard
  • Department of Interior
  • Department of Veteran Affairs
  • General Services Administration
  • U.S. Postal Service
  • U.S. Department of Transportation
  • Federal Aviation Administration
  • Subcontracts with large, private contractors such as Lockheed Martin, General Dynamics, and Sensis Corp.

Professional NAICS codes

  • 541310—Architectural Services
  • 541320—Landscape Architectural Services
  • 541330—Engineering Services
  • 541350—Building Inspection Services
  • 541490—Other Specialized Design Services
  • 541611—Admin Management and General Management Services
  • 541620—Environmental Consulting Services
  • 541690—Other Scientific and Technical Consulting Services
  • 561621—Security System Services

Construction NAICS codes

  • 236210—Industrial Building Construction
  • 236220—Commercial and Institutional Building Construction
  • 237110—Water and Sewer Line and Related Structures Construction
  • 237120—Oil and Gas Pipeline and Related Structures Construction
  • 237130—Power and Communication Line and Related Structures Construction
  • 237310—Highway, Street, and Bridge Construction
  • 237990—Other Heavy and Civil Engineering Construction
  • 238110—Poured Concrete Foundation and Structure Contractors
  • 238120—Structural Steel and Precast Concrete Contractors
  • 238130—Framing Contractors
  • 238140—Masonry Contractors
  • 238170—Siding Contractors
  • 238190—Other Foundation, Structure, and Building Exterior Contractors
  • 238220—Plumbing, Heating, and Air-Conditioning Contractors
  • 238290—Other Building Equipment Contractors
  • 238310—Drywall and Insulation Contractors
  • 238320—Painting and Wall Covering Contractors
  • 238330—Flooring Contractors
  • 238340—Tile and Terrazzo Contractors
  • 238350—Finish Carpentry Contractors
  • 238390—Other Building Finishing Contractors
  • 238910—Site Preparation Contractors
  • 238990—All Other Specialty Trade Contractors

Small business alliances

C&S routinely teams with and maintains working relationships with highly qualified small businesses, service-disabled and veteran-owned firms, women-owned firms, 8(a) entities, HUBZone firms, and other small and disadvantaged businesses. We are committed to meeting the federal government’s goals and requirements for participation of such firms in our contracts, including the provision of small business subcontracting plans, where required.

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