Public engineering firm directory

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A&A Consultants Inc

McKees Rocks, PA

Specializing in geotechnical, structural, and civil engineering excellence

WebsitePhone3 offices7 projects8 credentialsFounded 1996Updated Jun 2026

Project: Big Beaver Bridge

Service: Bridge Design and InspectionsService: Bridge DesignService: Bridge InspectionsIndustry: TransportationIndustry: BridgesType: Civil Engineering+22 more

Dulles Geotechnical and Materials Testing Services, Inc.

Chantilly, VA

Geotechnical engineering, construction inspection, materials testing, and software solutions

WebsitePhone4 offices10 projects7 credentialsFounded 2012Size Estimate: 70+ employees

Project: I-495 Express Lanes Northern Extension (I-495 NEXT)

Service: Geotechnical EngineeringService: Engineering Analysis and DesignService: Foundation DesignIndustry: Highways & RoadsIndustry: TransitType: Geotechnical Engineering+36 more

ECS Group of Companies

Chantilly, VA

Your Go-To Engineering Consulting Partner

Website1 office6 projects1 leadersFounded 1988Size Estimate: 1,000+ employeesUpdated Jun 2026

Project: SK Innovation EV Battery Site

Service: Geotechnical EngineeringService: Subsurface ExplorationService: In-Situ TestingIndustry: CommercialIndustry: IndustrialType: Geotechnical Engineering+48 more

Engineering Materials Technologies, Inc.

Manassas, VA

Quality Matters

WebsitePhone1 office4 projects5 leadersFounded 1997Updated Jun 2026

Project: Ronald Reagan Washington National Airport (DCA) Geotechnical and Special Inspections

Service: Geotechnical EngineeringService: Subsurface ExplorationService: Problem Soil EvaluationIndustry: AirportsIndustry: Highways & RoadsType: Geotechnical Engineering+31 more

Godwin Engineering

Winchester, VA

Engineering | Surveying | Planning

WebsitePhone1 officeFounded 2007Updated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: SurveyingService: PlanningIndustry: InfrastructureIndustry: GovernmentType: Civil Engineering+19 more

Hillis-Carnes Engineering Associates

Annapolis Junction, MD

Your Foundation for Success

WebsitePhone21 offices7 projects3 leaders3 credentialsFounded 1993

Project: Anthem House Luxury Residential Development

Service: Geotechnical EngineeringService: Subsurface investigations and soil boringsService: Foundation design recommendationsIndustry: CommercialIndustry: Land DevelopmentType: Environmental Engineering+56 more

Professional Geotechnical Engineering Services, Inc.

Chantilly, VA

Comprehensive geotechnical engineering solutions for public and private sector development in the DC, Maryland, and Virginia area

WebsitePhone1 office11 projects1 leaders1 credentialsUpdated Jun 2026

Project: Arlington National Cemetery, Patton Dr. M&R (Phase 2)

Service: Geotechnical EngineeringService: Geotechnical InstrumentationService: Settlement AnalysesIndustry: CommercialIndustry: ResidentialType: Geotechnical Engineering+14 more

S.Q. Consultants, Inc.

Vienna, VA

Structural and Geotechnical Engineers - Consulting Services Committed to Excellence

WebsitePhone1 office1 projects2 leadersFounded 1987Size Estimate: 1-10 employees

Project: BWI International Airport - Modernization Program

Service: Structural EngineeringService: Structural Analysis of Load Bearing Walls and ColumnsService: Structural Evaluations of New and Existing BuildingsIndustry: ResidentialIndustry: CommercialType: Structural Engineering+29 more

Zannino Engineering, Inc.

Glen Allen, VA

Innovative & Reliable

WebsitePhone1 office4 projects16 leaders10 credentialsFounded 1991

Project: Manchester Condos

Service: Geotechnical EngineeringService: Subsurface InvestigationsService: Foundation Design RecommendationsIndustry: CommercialIndustry: ResidentialType: Geotechnical Engineering+25 more