Public engineering firm directory

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AED Energy Services

Wyomissing, PA

Designing America's Energy Lifelines

WebsitePhone4 offices9 leaders4 credentialsFounded 1989Updated Jun 2026

Service detail: Chemical and Process Design

Service: Chemical and Process DesignService: Documentation and AnalysisService: Specialized CalculationsIndustry: Oil & GasIndustry: PetrochemicalType: Chemical Engineering+64 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

All County and Associates, Inc.

Gilbertsville, PA

All County and Associates, Inc. (ACA) is a full-service civil engineering, land surveying, and environmental permitting firm established in 1992 and located in Gilbertsville, Pennsylvania. ACA serves clients across fifteen counties in eastern Pennsylvania, covering Berks, Bucks, Carbon, Chester, Delaware, Lackawanna, Lancaster, Lehigh, Luzerne, Montgomery, Monroe, Northampton, Pike, Schuylkill, and southern Wayne counties. The practice serves architects, builders, contractors, developers, homeowners, home inspectors, and real estate agents with a focus on helping clients navigate permitting and regulatory processes.

WebsitePhone1 officeFounded 1992Updated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Subdivision & Land Development DesignService: Stormwater ManagementIndustry: ResidentialIndustry: CommercialType: Civil Engineering+18 more

Asplundh Engineering Services, LLC

Horsham, PA

The name you trust for power generation, transmission and distribution infrastructure engineering services

Website1 office4 projectsUpdated Jun 2026

Project: Eversource Utilities Distribution Services

Service: Distribution EngineeringService: Greenfield Distribution DesignService: System Investigation and NESC ComplianceIndustry: Electric UtilitiesIndustry: Power Transmission & DistributionType: Power & Utility Engineering+30 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

BBIX, LLC

Boston, MA

Trusted Design and Engineering Solutions for Federal Projects

WebsitePhone3 offices1 credentialsUpdated Jun 2026

Service detail: Architecture

Service: ArchitectureService: New construction designService: Building renovation and rehabilitationIndustry: FederalIndustry: GovernmentType: Architecture & Engineering+29 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

Base Engineering Inc.

Allentown, PA

Building up vision, leading future

WebsitePhone1 office6 projects8 credentialsFounded 1979Updated Jun 2026

Project: Pinel 2

Service: Surveying and Land PlanningService: Boundary SurveysService: Site PlanningIndustry: CommercialIndustry: IndustrialType: Civil Engineering+25 more

Burns Engineering, Inc.

Philadelphia, PA

Partners in Reliability, Resilience, Innovation, Sustainability, and Safety

Website6 offices14 projects12 leaders15 credentials5 publicationsFounded 1960

Project: Pittsburgh International Airport Terminal Modernization Program

Service: Electrical EngineeringService: Power Infrastructure RenewalService: Campus Electrical ModernizationIndustry: AviationIndustry: RailType: Aviation Engineering+52 more

Catania Engineering Associates

Folsom, PA

Top civil engineering company in the Delaware Valley

WebsitePhone1 office6 projects5 leaders6 credentialsFounded 1964

Project: Harrah's Chester Racetrack and Casino

Service: Residential EngineeringService: Property Line SurveysService: FEMA Flood Elevation CertificatesIndustry: ResidentialIndustry: CommercialType: Civil Engineering+22 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

Chrisland Engineering

Lebanon, PA

Providing quality, professional engineering services with a focus on the community.

WebsitePhone1 office3 leadersFounded 2017Size Estimate: 1-10 employeesUpdated Jun 2026

Service detail: Subdivision and Land Development

Service: Subdivision and Land DevelopmentService: Stormwater ManagementService: Permitting and PlanningIndustry: Land DevelopmentIndustry: GovernmentType: Civil Engineering+6 more

Chuck Consulting LLC

Boalsburg, PA

Transforming Indoor/Outdoor Space into Functional Value

WebsitePhone1 office1 projects1 leadersSize Estimate: 1-10 employeesUpdated Jun 2026

Project: Tri-Municipal Park (Penns Prairie)

Service: Project Evaluation ServicesService: General Feasibility StudyService: Funding Analysis (Public and Private)Industry: ResidentialIndustry: CommercialType: Civil Engineering+32 more

Collective Efforts, LLC

West View Borough, PA

Civil & Environmental Engineers

Website2 officesFounded 2000Updated Jun 2026

Service detail: Civil Engineering Services

Service: Civil Engineering ServicesService: Water Resources and InfrastructureService: Sustainable Design and Green InfrastructureIndustry: Environmental & RemediationIndustry: Water ResourcesType: Civil Engineering+18 more

Cosmos Technologies, Inc.

Pittsburgh, PA

Innovation for the Future

WebsitePhone5 officesFounded 1998Updated Jun 2026

Service detail: Civil Site Design & Development

Service: Civil Site Design & DevelopmentService: Site PlanningService: Design From Concept Through Construction AdministrationIndustry: GovernmentIndustry: Water SupplyType: Civil Engineering+36 more

D&B Engineers and Architects, DPC

Woodbury, NY

A Legacy Engineered From A Vision

WebsitePhone7 offices8 projects20 leadersFounded 1965Size Estimate: 100-499 employees

Project: Atlantic County Utilities Authority Project

Service: ArchitectureService: Sustainable DesignService: BIM & Technology-Driven DesignIndustry: CommercialIndustry: EducationType: Architecture & Engineering+37 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

David Laird Associates, Inc.

Erie, PA

David Laird Associates, Inc. is a civil engineering and land surveying practice established in 1960 in Erie, Pennsylvania, serving Northwestern Pennsylvania and Western New York. Founded by David Laird and now led by his son John Laird, P.L.S., the team provides boundary surveys, ALTA surveys, stormwater management, erosion and sediment control, and land development planning to government agencies, private developers, and individual property owners. David Laird Associates maintains an extensive historical archive of engineering records dating back to the 1870s, acquired from predecessor firms including ACME Engineers, McManus Engineering, Lake Engineering, and The Supplee Engineering Company.

WebsitePhone1 office3 leadersFounded 1960Updated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: ADA DesignService: Commercial DevelopmentIndustry: Land DevelopmentIndustry: CommercialType: Civil Engineering+29 more

EcoStrategies Engineering & Surveying

Falconer, NY

Civil engineering, environmental consulting, and professional land surveying services

WebsitePhone2 offices2 leaders2 credentialsUpdated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Subdivision DesignService: Site Grading and Drainage PlansIndustry: Aggregates & QuarryingIndustry: Biomass & BioenergyType: Civil Engineering+40 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

ExecuPOWER

King of Prussia, PA

Powering our future through partnerships, principles, and passion.

WebsitePhone1 office5 leadersSize Estimate: 25-50 employeesUpdated Jun 2026

Service detail: Substation Engineering

Service: Substation EngineeringService: Protection and Control DesignService: Outdoor Electrical (Physical) Substation DesignIndustry: Electric UtilitiesIndustry: Renewable EnergyType: Power & Utility Engineering+43 more

First Capital Engineering, Inc.

York, PA

Engineering & Land Management Services

WebsitePhone1 office9 projects1 leaders3 credentialsFounded 1995

Project: Springettsbury Township Fire House

Service: Civil EngineeringService: Land DevelopmentService: Site & Master PlanningIndustry: GovernmentIndustry: Land DevelopmentType: Civil Engineering+58 more

G.D. Houtman & Son, Inc.

Media, PA

G.D. Houtman & Son, Inc. is a Media, Pennsylvania civil engineering and land surveying company serving southeastern Pennsylvania since 1945. The family-owned practice supports site engineering, land surveying, municipal engineering, subdivision plans, commercial land development, residential subdivisions, drainage studies, stormwater management design, sanitary sewer collection and conveyance systems, erosion and sediment control, PennDOT highway occupancy permit plans, retaining-wall design, water line extension plans, NPDES permits, land disturbance permits, bid packages, and construction stakeout.

WebsitePhone1 office2 projectsFounded 1945Updated Jun 2026

Project: French Creek Golf Course

Service: Civil Engineering and Site DevelopmentService: Residential subdivisionsService: Commercial land developmentIndustry: Land DevelopmentIndustry: ResidentialType: Civil Engineering+32 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