Public engineering firm directory

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Aillet, Fenner, Jolly & McClelland, Inc.

AFJMc is a consulting engineering firm with more than 55 years of experience delivering civil, structural, mechanical, electrical, and transportation engineering services. Its portfolio includes roadways, bridges, utility and site design, industrial process systems, higher education facilities, healthcare facilities, government buildings, sports and recreation facilities, and commercial projects.

Website3 projectsUpdated Jun 2026

Project: Jimmie Davis Bridge (LA 511) Replace/Rehab

Service: Civil EngineeringService: Site PlanningService: Stormwater ManagementIndustry: TransportationIndustry: Highways & RoadsType: Civil Engineering+37 more

Athavale, Lystad & Associates, Inc.

McLean, VA

Innovative Engineering Solutions for the Mid-Atlantic

WebsitePhone2 offices16 projects6 leadersFounded 1985Size Estimate: 1-25 employees

Project: Telegraph Road Bridge Rehabilitation and Widening

Service: Structural EngineeringService: Bridge DesignService: Pedestrian Bridge DesignIndustry: TransportationIndustry: GovernmentType: Civil Engineering+21 more

Carroll Engineering, Inc.

Hunt Valley, MD

Small Firm, Big Ideas

WebsitePhone2 offices10 projects20 leaders4 credentialsFounded 1965

Project: Morgan State University Calvin & Tina Tyler Hall

Service: Structural EngineeringService: Concrete Frame, Tilt-Up, and Post-Tensioned StructuresService: Steel Frame and Composite DesignIndustry: EducationIndustry: HealthcareType: Civil Engineering+39 more

Charles A. Manganaro Consulting Engineers, P.C.

Tarrytown, NY

Distinct personal engineering service designed to build foundations and trust that last.

WebsitePhone1 office5 projects1 leaders4 credentialsFounded 1942

Project: PVSC Interceptor System and Wastewater Treatment

Service: Water EngineeringService: Surface and Groundwater TreatmentService: Water Supply and DistributionIndustry: Water SupplyIndustry: WastewaterType: Civil Engineering+28 more

Cooper Engineering Company, Inc.

Rice Lake, WI

Working with Communities

WebsitePhone1 office6 projectsUpdated Jun 2026

Project: Village of Dorchester Street Reconstruction

Service: Municipal EngineeringService: Community and Facility PlanningService: Grant Writing and AdministrationIndustry: GovernmentIndustry: IndustrialType: Civil Engineering+44 more

Joseph B. Callaghan, Inc.

Philadelphia, PA

Your Structure. Our Solution.

WebsitePhone2 offices14 projects4 leaders6 credentialsFounded 1967

Project: St. Patricks Rittenhouse Square Facade & Roof Rehabilitation

Service: Building EnvelopesService: Facade Assessment and RepairService: Historic RestorationIndustry: EducationIndustry: CommercialType: Structural Engineering+19 more

Madrid CPWG

Bartow, FL

Full-Service Design, Engineering, Geotechnical Firm

WebsitePhone1 office5 projects8 leaders7 credentialsFounded 1992

Project: Lake Lawne Stormwater Facility Design

Service: Civil EngineeringService: Municipal ServicesService: Land DevelopmentIndustry: GovernmentIndustry: TransportationType: Civil Engineering+54 more

Mueller and Associates

Miami, FL

Engineer Excellence For Structural Brilliance Precision Quality

WebsitePhone2 offices6 projects1 credentialsSize Estimate: 10-49 employeesUpdated Jun 2026

Project: Lake Point Tower Planter Leak Investigation

Service: Structural EngineeringService: Structural Building Design & AnalysisService: Structural Building ModificationsIndustry: CommercialIndustry: RetailType: Structural Engineering+26 more

Nelson Engineering

Jackson, WY

Quality of Life Through Excellence in Engineering

WebsitePhone3 offices6 projects6 credentialsFounded 1964Size Estimate: 40-60 employees

Project: Teton Village Wastewater Treatment Plant

Service: Civil EngineeringService: Civil engineering services for publicService: Private clients on municipalIndustry: GovernmentIndustry: Water SupplyType: Civil Engineering+68 more

Pickering, Corts & Summerson, Inc.

Newtown, PA

Service Excellence Since 1918

WebsitePhone5 offices13 projects8 leaders3 credentialsFounded 1918

Project: SR 0078, Section 12M, Berks County, PA

Service: Bridge InspectionService: Routine NBIS EvaluationService: In-Depth Structural AssessmentIndustry: GovernmentIndustry: TransportationType: Civil Engineering+31 more

Principal Engineering, Inc.

Improving the PRINCIPAL Infrastructure of our World

Website6 projects1 credentialsUpdated Jun 2026

Project: Sister's Road Bridge Replacement

Service: Civil and Public Works EngineeringService: Transportation and Roadway DesignService: Drainage SystemsIndustry: GovernmentIndustry: InfrastructureType: Civil Engineering+21 more

Somat Engineering, Inc.

Detroit, MI

Infrastructure Engineering Solutions

WebsitePhone8 offices8 projects2 leaders7 credentialsFounded 1986

Project: M-1 Rail (QLine)

Service: Geotechnical EngineeringService: Subsurface InvestigationService: Foundation DesignIndustry: TransportationIndustry: Highways & RoadsType: Geotechnical Engineering+49 more

Wolf Trail Engineering, PLLC

Monroe, NC

Building Enclosure • Structural • Civil • Mechanical • Project Management

WebsitePhone1 office4 projects6 leaders7 credentialsFounded 2018

Project: McDowell Nature Preserve

Service: Building EnclosureService: Roof Consulting and AssessmentService: Moisture Intrusion and WaterproofingIndustry: GovernmentIndustry: EducationType: Civil Engineering+17 more