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.

Filters2

AE Dynamics LLC

Bozeman, MT

Your Partner for Efficient and Effective Design

WebsitePhone2 offices4 projectsUpdated Jun 2026

Project: Belmont University Massey Center

Service: Structural EngineeringService: Primary Structure DesignService: Specialty System EngineeringIndustry: CommercialIndustry: EducationType: Structural Engineering+13 more

AE Works

Sewickley, PA

We Make Building Projects a Better Value

WebsitePhone2 offices15 projects1 leaders23 credentials3 publications

Project: Bay Pines VA Medical Center, Electronic Health Records Modernization

Service: Architecture & Interior DesignService: Programming and Test FitsService: Master Planning and Space ConsolidationIndustry: CommercialIndustry: Multifamily ResidentialType: Architecture & Engineering+46 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

Advanced Integration Group, Inc.

McKees Rocks, PA

Be in Control.

WebsitePhone1 office2 projects5 credentialsUpdated Jun 2026

Project: Lock and Dam Control Systems - Ohio River

Service: Control Systems Design and ImplementationService: PLC ProgrammingService: SCADA DevelopmentIndustry: Power GenerationIndustry: ManufacturingType: Automation & Controls+37 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

Aterra Solutions

Ambler, PA

Dams, Levees, Severe Flooding, and Geotechnical Services

WebsitePhone2 offices13 projects1 leadersUpdated Jun 2026

Project: Inundation Mapping, Hazard Assessments and Emergency Action Plans for Forest Service Dams

Service: Dam Engineering & HydropowerService: Flooding Support for Nuclear IndustryService: Levee Engineering & CertificationIndustry: NuclearIndustry: Water ResourcesType: Geotechnical Engineering+19 more

Buchart Horn, Inc.

York, PA

Shaping the built environment with precision, creativity, and purpose since 1945

WebsitePhone9 offices6 projects4 leadersFounded 1945Size Estimate: 100-500 employees

Project: I-40/I-240 Interchange Improvements, Memphis, TN

Service: Water Resources EngineeringService: Wastewater treatment plant engineeringService: Water distribution and collection systemsIndustry: Water ResourcesIndustry: WastewaterType: Architecture & Engineering+41 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

CMTA

Louisville, KY

Building Science Leadership

Website49 offices2 projects3 leaders6 credentialsFounded 1969Size Estimate: 1,560 employees

Project: CMTA Corporate Headquarters Building 2

Service: Consulting EngineeringService: Mechanical EngineeringService: Electrical EngineeringIndustry: ManufacturingIndustry: AviationType: MEP+30 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

Century 3 Inc.

Greer, SC

Century 3 Inc. (C3) is an industrial engineering and construction company founded in 1977 in Greer, SC. C3 delivers engineering design, procurement, self-perform industrial construction, construction management, facility relocation, and maintenance services to clients in the food and beverage, pharmaceutical and life science, advanced manufacturing, automotive, chemical, high-tech, mission-critical, and general industrial markets. With 1,500 or more engineering and construction professionals, C3 holds professional engineering licenses and unlimited general contractor licenses throughout the United States, as well as trade-specific electrical, mechanical, plumbing, and piping contractor licenses. US offices are in Greer SC, Augusta GA, Pittsburgh PA, and Phoenix AZ, with additional international entities in China and Europe.

Website4 offices6 leadersFounded 1977Size Estimate: 1,500+ employeesUpdated Jun 2026

Service detail: Engineering Design

Service: Engineering DesignService: Self-Perform Industrial ConstructionService: ProcurementIndustry: Food & BeverageIndustry: PharmaceuticalType: Industrial Engineering+12 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

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

Farnham & Associates, Inc.

Clarks Summit, PA

Water and Wastewater Specialists, North East Pennsylvania

WebsitePhone1 office1 leadersUpdated Jun 2026

Service detail: Drinking Water Analysis

Service: Drinking Water AnalysisService: Predrill baseline analysisService: Water quality analysis, modeling, and predictive studiesIndustry: Water SupplyIndustry: WastewaterType: Water / Wastewater Engineering+92 more

Fox & Associates

Hagerstown, MD

Engineering Surveying and Land Planning

WebsitePhone3 offices5 projects2 leadersFounded 1966Updated Jun 2026

Project: Sycamore Ridge Subdivision

Service: Civil EngineeringService: Residential Subdivision DesignService: Site Civil EngineeringIndustry: ResidentialIndustry: Land DevelopmentType: Civil Engineering+16 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

Geo-Technology Associates, Inc.

Laurel, MD

Growing Together To Enhance Our Built Environment

WebsitePhone28 offices5 projectsSize Estimate: 600 employeesUpdated Jun 2026

Project: Ewing Town Center

Service: Geotechnical ServicesService: Construction ServicesService: High-Rise Building ConstructionIndustry: CommercialIndustry: ResidentialType: Geotechnical Engineering+13 more

Hammontree & Associates, Limited

North Canton, OH

Engineers - Planners - Scientists - Surveyors

WebsitePhone3 offices5 leaders21 credentialsFounded 1966Updated Jun 2026

Service detail: Energy

Service: EnergyService: Oil and Gas Well Site Development and PermittingService: Solar Array Support and PermittingIndustry: TransportationIndustry: Highways & RoadsType: Civil Engineering+52 more

Herbert, Rowland & Grubic, Inc.

Harrisburg, PA

Engineering | Planning | Infrastructure Solutions

Website9 offices7 leaders3 credentialsFounded 1962Size Estimate: 400+ employeesUpdated Jun 2026

Service detail: Municipal Engineering

Service: Municipal EngineeringService: Municipal RepresentationService: Capital Improvement Planning & DesignIndustry: GovernmentIndustry: FederalType: Civil Engineering+96 more

Honor Engineer Company

Harrisburg, PA

Advanced geospatial technology and civil design professionals.

WebsitePhone2 offices5 leadersUpdated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Early Planning & PermittingService: Final DesignIndustry: FederalIndustry: GovernmentType: Civil Engineering+20 more

Integrated Industrial Technologies Inc

Pittsburgh, PA

Providing Engineering Solutions to Markets Worldwide

WebsitePhone1 office6 projectsFounded 1990Updated Jun 2026

Project: Digital Gauger

Service: Automation & Control SystemsService: Turnkey Automation SystemsService: Robot IntegrationIndustry: AerospaceIndustry: AutomotiveType: Automation & Controls+9 more

KLH Engineers, Inc.

Pittsburgh, PA

Large enough to solve big problems. Small enough to care.

WebsitePhone2 offices2 projectsFounded 1982Size Estimate: 60+ employeesUpdated Jun 2026

Project: Allegheny Valley Joint Sewage Authority System-wide Upgrades

Service: Water Supply EngineeringService: Waterline Replacement and ExtensionService: Water Treatment Plant ImprovementsIndustry: GovernmentIndustry: Water SupplyType: Civil Engineering+26 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