Engineering
- 521
- Pickering, Corts and Summerson, Inc.
- Professional engineering and land surveying services throughout Pennsylvania, New Jersey, and Delaware.
- 522
- Ponticello Enterprises Consulting Engineers
- Offers a wide range of consulting services including full municipal engineering, development services, design, project management, and construction management based in Woodland, California.
- 523
- Progressive Consulting Engineers
- Consulting engineering firm that specializes in the water supply area providing services to both public and private agencies.
- 524
- Project Management Group
- Engineering, design, project management and technical services consultancy.
- 525
- Quinn Dressel Associates
- Specializing in high-rise commercial construction, healthcare, institutional and building science projects.
- 526
- R. Powell & Associates
- Specializes in engineering systems analysis and design, business analysis, and competitive assessments, based in Lilburn, Georgia.
- 528
- RG Consulting Engineers
- A civil engineering firm providing services from design through construction in land development, water and wastewater treatment plants, highway and bridge design, storm drainage, and airport improvements as well as municipal consulting.
- 529
- RHD Services, Inc.
- Provides subsurface utility engineering, ground penetrating radar, vacuum excavation, and video pipe inspection. Located in Atlanta, Georgia.
- 530
- Richard Brady & Associates
- A professional engineering firm that specializes in the planning design and construction administration and management of public works projects throughout the Southern California area.
- 531
- Royal Haskoning Maritime
- An international consulting civil and maritime engineering and architecture firm with offices based in the United Kingdom.
- 533
- SWECO International
- A consulting company providing engineering, environmental management, and architecture. Headquartered in Stockholm, Sweden.
- 534
- Sandberg Consulting Engineers
- Provides consultancy, investigation, and testing services to the civil, building, and mechanical engineering industries.
- 535
- Sands Chartered Engineers
- The practice has expertise in civil and structural design plus site surveying and soil investigations and all types of structures including bridges and masts.
- 537
- Servant, Dunbrack, McKenzie & MacDonald
- Provides a spectrum of professional surveying and other geomatic services to local and national clients throughout Atlantic Canada.
- 538
- Shirley Consulting Engineers
- Geotechnical consulting engineers offering expert and forensic investigation services, and geotechnical design specialising in hillside building advice. Located in Australia.