Public engineering firm directory

Find engineering consulting firms by capability and location.

Search engineering firm profiles built for buyers who need a shortlist, not a sales pitch.

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CNC Civil Services, LLC

Washington, DC

Civil Engineering. Planning. Site Development. Surveying.

WebsitePhone2 offices7 projects2 credentialsSize Estimate: 10-49 employeesUpdated Jun 2026

Project: Capital Exports Warehouse

Service: Civil EngineeringService: Site Engineering / Land DevelopmentService: Water Resources EngineeringIndustry: Electric UtilitiesIndustry: Water SupplyType: Civil Engineering+34 more

Drm International Inc

Radnor, PA

Proven. Driven. Visionary.

Website2 offices1 leaders2 credentialsFounded 2000Updated Jun 2026

Service detail: Construction Management

Service: Program ManagementService: Construction ManagementService: Construction AdministrationIndustry: RailIndustry: TransitType: Architecture & Engineering+20 more

Foxxstem

Washington, DC

Building people. Elevating communities. Engineering solutions.

Website1 office15 projects1 leaders1 credentialsUpdated Jun 2026

Project: Broad Branch Stormwater Retrofit

Service: Civil Engineering DesignService: Stormwater Retrofit and DrainageService: Transportation Infrastructure DesignIndustry: TransportationIndustry: Water ResourcesType: Civil Engineering+21 more

Globetrotters Engineering Corporation

Chicago, IL

Architecture, Engineering, Technology

WebsitePhone3 offices9 projects6 leaders10 credentialsFounded 1974

Project: O'Hare International Airport Terminal 5

Service: ArchitectureService: Condition AssessmentService: Spatial and Building DesignIndustry: TransitIndustry: TransportationType: Architecture & Engineering+48 more

Grotheer & Company

Washington, DC

Professional Engineering

WebsitePhone1 office3 leadersFounded 1954Updated Jun 2026

Service detail: Electrical Engineering

Service: Electrical EngineeringService: Power Quality StudiesService: Arc Flash / Short Circuit AnalysisIndustry: GovernmentIndustry: FederalType: MEP+34 more

Guernsey

Oklahoma City, OK

Realize the Difference

WebsitePhone5 offices7 projects6 leaders5 credentialsFounded 1928

Project: Boeing High-Bay Research Facility

Service: ArchitectureService: Building DesignService: Interior DesignIndustry: DefenseIndustry: FederalType: Architecture & Engineering+35 more

Nitsch Engineering

Boston, MA

Building Better Communities With You

WebsitePhone5 offices5 projects5 leaders3 credentials3 publications

Project: Kennedy Street Green Infrastructure

Service: Civil EngineeringService: Due diligence and permitting strategyService: Site development advisory servicesIndustry: EducationIndustry: AirportsType: Civil Engineering+88 more

O&S Associates

Hackensack, NJ

Experts in new design and restoration engineering

Website6 offices6 projects16 leaders11 credentialsFounded 1996Size Estimate: 100-249 employees

Project: H Mart American Dream

Service: Design and Restoration EngineeringService: New Architectural DesignService: Restoration and RenovationIndustry: CommercialIndustry: ResidentialType: Architecture & Engineering+32 more

Shen Milsom & Wilke

New York, NY

Acoustic, Audiovisual & Technology Design Consultants

WebsitePhone13 offices6 projects36 leadersFounded 1986Size Estimate: 230+ employees

Project: U.S. Embassy in London

Service: AcousticsService: Architectural AcousticsService: Acoustics AssessmentsIndustry: Arts & CultureIndustry: AviationType: Acoustic Consulting+61 more

Wiles Mensch Corporation

Washington, DC

Designing Dynamic Development

Website1 office9 projects4 leadersUpdated Jun 2026

Project: Parc Riverside

Service: Civil EngineeringService: Feasibility Studies and Due DiligenceService: Site DesignIndustry: GovernmentIndustry: TransitType: Civil Engineering+40 more

Yun Associates LLC

Washington, DC

Creative and sustainable structural engineering

WebsitePhone2 offices16 projectsUpdated Jun 2026

Project: John Eaton Elementary School Modernization

Service: Structural Engineering Analysis & DesignService: Alternative Structural System EvaluationService: Structural Engineer of Record ServicesIndustry: EducationIndustry: AirportsType: Structural Engineering+21 more