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

AWK Consulting Engineers, Inc.

Turtle Creek, PA

Quality, innovative, and cost-effective consulting engineering solutions

WebsitePhone2 offices4 leadersSize Estimate: 50-99 employeesUpdated Jun 2026

Service detail: Geotechnical Engineering

Service: Geotechnical EngineeringService: Drilling ServicesService: Pavement Evaluation & RehabilitationIndustry: GovernmentIndustry: FederalType: Civil Engineering+17 more

Ackenheil Engineers, Inc.

Pittsburgh, PA

Your project is our priority.

WebsitePhone1 office5 leaders1 credentialsFounded 1958Updated Jun 2026

Service detail: Geotechnical Engineering

Service: Geotechnical EngineeringService: Geotechnical investigationsService: Spread footing foundation designIndustry: BridgesIndustry: Highways & RoadsType: Geotechnical Engineering+24 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

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

Anchor QEA

Seattle, WA

Transforming Our Environment and Communities, with Integrity and Vibe

WebsitePhone28 offices4 projects4 leadersSize Estimate: 200-1,000 employeesUpdated Jun 2026

Project: Hancock County Marsh Living Shoreline

Service: EngineeringService: Civil EngineeringService: Coastal ResilienceIndustry: Power GenerationIndustry: FederalType: Civil Engineering+46 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

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

Campos EPC, LLC

Denver, CO

The Leader In Energy Infrastructure

WebsitePhone20 offices1 projects11 leaders3 publicationsFounded 2005

Project: 350MW Data Center Power Generation & Substation Facility

Service: EngineeringService: Pipeline EngineeringService: Transmission And Midstream Pipeline DesignIndustry: Oil & GasIndustry: UtilitiesType: EPC+51 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

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

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

GAI Consultants, Inc.

Indianapolis, IN

Transforming Ideas Into Reality®

WebsitePhone5 offices24 leaders4 publicationsFounded 1958Updated Jun 2026

Service detail: Environmental Services

Service: Environmental ServicesService: Environmental Impact Analysis and NEPA DocumentationService: Permitting and Regulatory ComplianceIndustry: Power GenerationIndustry: Renewable EnergyType: Civil Engineering+44 more

GEI Consultants, Inc.

New York City, NY

Relentless seekers of the best solutions.

Website4 offices13 projects6 leaders3 credentialsUpdated Jun 2026

Project: Royse City, Texas Drainage Master Plan

Service: Geotechnical EngineeringService: Geostructural DesignService: Building Envelope ServicesIndustry: Water ResourcesIndustry: Water SupplyType: Geotechnical Engineering+40 more

GZA GeoEnvironmental, Inc.

Norwood, MA

Solving Complex Challenges in Natural and Built Environments

WebsitePhone35 offices4 projectsSize Estimate: 800 employeesUpdated Jun 2026

Project: Upper Roberts Meadow Reservoir Dam Breach and Stream Restoration Project

Service: Geotechnical EngineeringService: Environmental Site Investigation and RemediationService: Environmental Site InvestigationIndustry: AgricultureIndustry: IndustrialType: Geotechnical Engineering+29 more

GeoTech Engineering, Inc.

Morrisdale, PA

Providing concise and cost-effective engineering solutions

WebsitePhone3 offices2 credentialsFounded 1996Updated Jun 2026

Service detail: Civil/Site Engineering

Service: Civil/Site EngineeringService: Commercial, Industrial and Retail Site DevelopmentService: Residential Site Feasibility StudiesIndustry: MiningIndustry: Oil & GasType: Civil Engineering+39 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

Keystone Associates Llc

Binghamton, NY

Keystone Associates Architects, Engineers and Surveyors, LLC (Keystone) is a multi-disciplined design firm headquartered in Binghamton, New York, with branch offices in Cortland, New York and Monticello, New York. Keystone was established in 1993 and has provided professional design services for a region encompassing all of Upstate New York, as well as Northeastern Pennsylvania. Through mergers and acquisitions, Keystone has expanded it and its services offered. Keystone provides an extensive menu of professional services to a broad range of clients including municipalities, private developers, school districts, housing authorities, college and universities, utility companies, and various other commercial and industrial enterprises.

Website4 offices3 leadersFounded 1993Updated Jun 2026

Service detail: Civil Engineering

Service: Interior DesignService: Civil EngineeringService: Geotechnical EngineeringIndustry: CommercialIndustry: EducationType: Architecture & Engineering+14 more

Larson Design Group, Inc.

Williamsport, PA

National Presence. Hyper-Local Focus.

WebsitePhone18 offices4 leadersFounded 1986Updated Jun 2026

Service detail: Civil Engineering

Service: Architecture & Interior DesignService: Civil EngineeringService: Site/Land DevelopmentIndustry: CommercialIndustry: EducationType: Architecture & Engineering+78 more

Leake Engineering, LLC

Philadelphia, PA

Leake Engineering, LLC is a multi-discipline engineering consulting practice headquartered in Philadelphia, Pennsylvania, with licensure in all 50 states. Originating in 2007 on Leake Avenue in New Orleans near the Army Corps of Engineers district during post-Katrina rebuilding, the practice subsequently relocated its primary operations to the Greater Philadelphia area. It serves commercial, residential, multi-family, industrial, and government clients nationwide. Core services span structural engineering, civil engineering, geotechnical investigations, and field inspection services.

WebsitePhone3 offices1 leadersFounded 2007Updated Jun 2026

Service detail: Structural Engineering

Service: Structural EngineeringService: Facilities Maintenance and RepairService: Multi-family, Commercial, and Industrial DesignIndustry: CommercialIndustry: ResidentialType: Structural Engineering+28 more

Liberty Environmental, Inc.

Reading, PA

Providing Innovative Solutions to Complex Environmental Problems

WebsitePhone5 offices4 leaders3 credentials1 publicationsFounded 2004

Service detail: Regulatory Compliance

Service: Regulatory ComplianceService: Air PermittingService: SPCC Plan Development and UpdatesIndustry: CommercialIndustry: Land DevelopmentType: Environmental Engineering+48 more

McLaren Engineering Group

New York City, NY

applied ingenuity

Website2 offices9 projects11 leadersFounded 1977Size Estimate: 201-500 employeesUpdated Jun 2026

Project: 164 Kent Waterfront Towers

Service: Structural EngineeringService: New Construction Engineering + DesignService: Additions, Alterations, Renovations + RepairsIndustry: TransportationIndustry: MarineType: Civil Engineering+69 more