Public engineering firm directory

Find engineering consulting firms by capability and location.

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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

AEG - A SOCOTEC Company

Mechanicsburg, PA

Engineering, Surveying, and Inspections

WebsitePhone1 office3 projects3 credentialsUpdated Jun 2026

Project: 95REVIVE Pottstown Expressway Reconstruction

Service: Geotechnical EngineeringService: Geotechnical Engineering and Foundation DesignService: Design of Earth Structures and Retaining WallsIndustry: TransportationIndustry: BridgesType: Geotechnical Engineering+64 more

ARM Group LLC

Hummelstown, PA

Precise. Responsive. Solutions.

WebsitePhone1 office1 projects8 credentialsFounded 1998Size Estimate: 250-500 employees

Project: Annapolis Landfill Solar

Service: Civil Engineering & Land SurveyingService: Site Planning & EntitlementService: Site Plan DesignIndustry: CommercialIndustry: RetailType: Automation & Controls+52 more

Advanced Infrastructure Design, Inc.

Hamilton, NJ

Advanced Infrastructure Design, Inc. (AID) is a consulting engineering practice established in 1998. Headquartered in Hamilton, New Jersey, with an office in Philadelphia, Pennsylvania, it is staffed by licensed Professional Engineers, scientists, researchers, and technicians. The practice specializes in transportation infrastructure preservation, deploying advanced non-destructive testing (NDT) technologies to evaluate and design solutions for roads, bridges, tunnels, airports, substructures, foundations, and parking structures. It is led by President Mojgan Mohtashami, PhD, MBA.

Website2 offices1 leadersFounded 1998Size Estimate: 10-30 employeesUpdated Jun 2026

Service detail: Pavement Engineering

Service: Pavement EngineeringService: Comprehensive Non-Destructive Field TestingService: Functional LCMS AssessmentIndustry: GovernmentIndustry: TransportationType: Civil Engineering+57 more

Advantus Engineers

Pittsburgh, PA

Advantus Engineers is a Pittsburgh-based engineering consulting practice founded in 2004, specializing in building commissioning, sustainability consulting, MEP assessments, construction quality assurance, and environmental compliance. It serves public, institutional, and commercial clients across the Pittsburgh region. Over more than two decades, the practice has supported LEED certifications, water quality programs, and on-call MEP engineering for clients including the Pittsburgh Water and Sewer Authority and the David L. Lawrence Convention Center.

WebsitePhone1 office7 projects9 leaders3 credentialsFounded 2004

Project: Western Butler County Authority Administration Building

Service: Building CommissioningService: Design and Submittal AnalysisService: Controls and Checklist FormulationIndustry: GovernmentIndustry: CommercialType: MEP+40 more

Alliance Consulting, Inc.

Beaver, WV

Professional Consulting Services

WebsitePhone2 offices6 projects15 credentialsFounded 2001Updated Jun 2026

Project: Flat Top Lake Dam

Service: Civil EngineeringService: Site Development ServicesService: Structural Engineering ServicesIndustry: MiningIndustry: Oil & GasType: Civil Engineering+53 more

American Geotechnical & Environmental Services, Inc.

Canonsburg, PA

American Geotechnical & Environmental Services (A.G.E.S.), Inc. is a specialty engineering practice that provides comprehensive geotechnical design and environmental services. Headquartered in Canonsburg, Pennsylvania, with branch offices in King of Prussia, Pennsylvania, McLean, Virginia, and New Jersey, it has grown to become one of the largest specialty geotechnical consultancies in the northeastern United States. The practice focuses on delivering geotechnical engineering solutions for public infrastructure projects, including highways, bridges, transit, rail, aviation, and water resources.

WebsitePhone3 offices12 leaders1 credentialsFounded 1995Size Estimate: 70-99 employees

Service detail: Geotechnical Engineering

Service: Geotechnical EngineeringService: Subsurface Explorations and InstrumentationService: Soil and Rock Laboratory TestingIndustry: TransportationIndustry: TransitType: Geotechnical Engineering+11 more

Atane Consulting

New York, NY

Excel. Together.

WebsitePhone10 offices7 projects17 leaders17 credentialsUpdated Jun 2026

Project: Bloomingdale Road Reconstruction

Service: EngineeringService: Civil EngineeringService: Structural EngineeringIndustry: TransportationIndustry: Highways & RoadsType: Architecture & Engineering+33 more

Azar Design Co PC

Buffalo, NY

Bridging grace and imagination with functionality while delivering pragmatic solutions.

WebsitePhone5 offices4 projects8 leaders2 credentialsFounded 1979

Project: Jacobs School of Medicine & Biomedical Sciences

Service: ArchitectureService: Architectural DesignService: Historic PreservationIndustry: EducationIndustry: HealthcareType: Architecture & Engineering+112 more

Barry Isett & Associates, Inc.

Allentown, PA

Multi-Discipline Engineers and Consultants

WebsitePhone12 offices4 leaders4 credentialsFounded 1977Size Estimate: 300 employees

Service detail: Design Services

Service: Design ServicesService: Civil Land DevelopmentService: Structural EngineeringIndustry: EducationIndustry: HealthcareType: Civil Engineering+32 more

C.C. Johnson & Malhotra, P.C.

Baltimore, MD

Provide the Highest Level of Service to Our Clients While Delivering Value

WebsitePhone6 offices16 projects8 leadersFounded 1979Size Estimate: 50-100 employees

Project: 540 West Madison

Service: Buildings and FacilitiesService: HVAC Systems DesignService: Electrical Power and LightingIndustry: CommercialIndustry: RetailType: Civil Engineering+58 more

CMT Services Group

West Conshohocken, PA

CMT Services Group is a geotechnical engineering, materials testing, and construction special inspection firm based in West Conshohocken, Pennsylvania, serving clients throughout the Tri-State region (Pennsylvania, New Jersey, and Delaware). CMT provides geotechnical consulting, construction materials testing, ICC code special inspections, forensic investigation and non-destructive testing, environmental consulting, and AASHTO-accredited laboratory testing for commercial, healthcare, education, government, industrial, hospitality, and multifamily residential projects.

WebsitePhone1 office1 credentialsUpdated Jun 2026

Service detail: Geotechnical Engineering

Service: Geotechnical EngineeringService: Construction Materials TestingService: ICC Code Special InspectionsIndustry: CommercialIndustry: GovernmentType: Geotechnical Engineering+12 more

Cedarville Engineering Group, LLC

Pottstown, PA

Plan. Design. Build. Greatness.

WebsitePhone1 office8 projectsFounded 2010Size Estimate: 25-100 employeesUpdated Jun 2026

Project: Industrial Stormwater Compliance

Service: Civil EngineeringService: Capital Improvements Planning and DesignService: Stormwater Management DesignIndustry: FederalIndustry: GovernmentType: Civil Engineering+71 more

Compass Systems, Inc.

Lexington Park, MD

American Precision for Mission-Ready Technologies

WebsitePhone10 offices4 leaders2 credentialsFounded 1997Updated Jun 2026

Service detail: Research and Development

Service: Research and DevelopmentService: AI-Enabled Decision SupportService: Augmented Reality and TrainingIndustry: DefenseIndustry: AerospaceType: Defense Engineering+27 more

Coterie Environmental LLC

King of Prussia, PA

Leading the Way in Combustion and Air Pollution Control

Website1 office2 leaders1 credentialsFounded 2008Size Estimate: 1-10 employeesUpdated Jun 2026

Service detail: Regulatory Gap Analysis

Service: Regulatory Gap AnalysisService: Conceptual Design SelectionService: Air Pollution Control Concept DevelopmentIndustry: ManufacturingIndustry: GovernmentType: Environmental Engineering+14 more

D'Appolonia Engineers

Pittsburgh, PA

We create foundations for the future.

WebsitePhone1 office13 credentialsFounded 1956Updated Jun 2026

Service detail: Geotechnical Engineering

Service: Geotechnical EngineeringService: Foundation DesignService: Site Geotechnical ExplorationIndustry: MiningIndustry: Electric UtilitiesType: Civil Engineering+38 more

DESMAN

Boston, MA

Client-Focused Parking Solutions

WebsitePhone9 offices5 projects3 leaders3 credentialsFounded 1973

Project: Ft. Duquesne and Sixth Parking Garage Facade and Renovation

Service: Parking ConsultingService: Supply and Demand StudiesService: Concept PlanningIndustry: EducationIndustry: HealthcareType: Structural Engineering+30 more

Daedalus, Inc.

Pittsburgh, PA

Research, Design, and Engineering

WebsitePhone1 office11 projects4 leaders9 credentials1 publications

Project: Runway Lighting Product Lines

Service: ResearchService: User ResearchService: Ethnographic ResearchIndustry: HealthcareIndustry: LaboratoriesType: Mechanical Engineering+46 more

Delserro Engineering Solutions, Inc.

Easton, PA

Product Reliability and Accelerated Life Testing Services

WebsitePhone1 office1 projects3 credentialsFounded 1982Size Estimate: 1-25 employees

Project: Combined Temperature & Vibration Testing of Automotive Mass Air Flow Sensors

Service: Dynamic TestingService: Sinusoidal Vibration TestingService: Random Vibration TestingIndustry: DefenseIndustry: AerospaceType: Materials Testing+34 more

EBA Engineering, Inc.

Laurel, MD

Results With No Excuses

WebsitePhone5 offices3 projects1 credentialsFounded 1981Updated Jun 2026

Project: HSWA Non-Revenue Water Tracking Project

Service: Civil / Site EngineeringService: Environmental EngineeringService: Geotechnical EngineeringIndustry: GovernmentIndustry: FederalType: Civil Engineering+27 more

ELCON Technologies

Bridgeville, PA

Engineering Services and Solutions for Automation, Electrical Power, and Electromechanical Processes

WebsitePhone2 offices10 credentialsFounded 1988Updated Jun 2026

Service detail: Industrial Automation and Process Control

Service: Industrial Automation and Process ControlService: Machine ControlService: Process Control and SCADAIndustry: Automation & ControlsIndustry: IndustrialType: Electrical Engineering+24 more

Earth Engineering Incorporated

Philadelphia, PA

Your Success Is Our Mission

WebsitePhone4 offices1 leadersUpdated Jun 2026

Service detail: Geotechnical Investigations

Service: Geotechnical InvestigationsService: Soil Sample TestingService: Hydraulic AnalysisIndustry: CommercialIndustry: ResidentialType: Geotechnical Engineering+8 more

Elzly Technology Corporation

Reston, VA

Dedicated Corrosion Engineers

WebsitePhone3 officesUpdated Jun 2026

Service detail: Corrosion Engineering

Service: Corrosion EngineeringService: Engineering StudiesService: Corrosion SurveysIndustry: DefenseIndustry: FederalType: Materials Engineering+23 more

Endeavor Professional Services, LLC

State College, PA

Engineering Excellence for the Future

WebsitePhone1 officeUpdated Jun 2026

Service detail: Civil Engineering & Permitting

Service: Civil Engineering & PermittingService: Preliminary Site Scouting, Routing, and SelectionService: Facility DesignIndustry: Oil & GasIndustry: UtilitiesType: Civil Engineering+29 more