Public engineering firm directory

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WT Group AEC, LLC

Hoffman Estates, IL

Engineering with precision, pace and passion

WebsitePhone1 office6 leaders5 credentialsFounded 1971Updated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Structural EngineeringService: MEP EngineeringIndustry: CommercialIndustry: RetailType: Civil Engineering+18 more

Waldemar S. Nelson & Co., Inc.

New Orleans, LA

Engineering is the Foundation of Civilization

WebsitePhone2 offices2 projects2 credentials2 publicationsFounded 1945

Project: Artemis II Space Mission Engineering

Service: Civil, Structural and Architectural EngineeringService: Civil Site and Infrastructure DesignService: Structural Engineering for Complex FacilitiesIndustry: Oil & GasIndustry: PetrochemicalType: Architecture & Engineering+34 more

Walsh Engineering Services

Idaho Falls, ID

Full-service engineering and analysis delivering high-quality, personalized services

WebsitePhone2 offices7 leaders1 credentialsFounded 2005Size Estimate: 100-200 employees

Service detail: Engineering Design & Analysis

Service: Engineering Design & AnalysisService: Custom Equipment Design & IntegrationService: ASME Pressure Vessel & Heat Exchanger DesignIndustry: NuclearIndustry: FederalType: Mechanical Engineering+27 more

Watson Engineering PC

Apalachin, NY

Professional planning, design, and forensic engineering services

WebsitePhone2 offices4 projects6 credentialsFounded 2009Updated Jun 2026

Project: COGEN - Northport VAMC

Service: Engineering DesignService: Mechanical EngineeringService: Electrical EngineeringIndustry: HealthcareIndustry: EducationType: Mechanical Engineering+23 more

West Coast Code Consultants, Inc.

San Ramon, CA

Teaming with Your Community to Make a Difference

WebsitePhone10 offices10 projects5 leaders6 credentialsFounded 2006

Project: Apple Park

Service: Plan ReviewService: Building Plan ReviewService: Fire and Life Safety ReviewIndustry: GovernmentIndustry: CommercialType: Structural Engineering+23 more

Wilson & Girgenti, P.A.

Tampa, FL

Smart design engineering and consulting solutions for commercial construction

WebsitePhone1 office2 leaders4 credentialsFounded 2005Updated Jun 2026

Service detail: Structural Engineering

Service: Structural EngineeringService: Mechanical EngineeringService: Mechanical Systems EngineeringIndustry: CommercialIndustry: RetailType: MEP+27 more

Wiss, Janney, Elstner Associates, Inc.

Northbrook, IL

Solutions for the Built World

WebsitePhone30 offices5 projects5 credentials5 publicationsFounded 1956

Project: Washington Monument

Service: Structural EngineeringService: Bridge EngineeringService: Heavy Movable StructuresIndustry: GovernmentIndustry: TransportationType: Architecture & Engineering+54 more

Womer and Associates, Inc.

Spokane, WA

People | Culture | Design

WebsitePhone1 office11 projects4 leadersFounded 1992Updated Jun 2026

Project: Stillaguamish Administration Building

Service: ArchitectureService: Interior DesignService: Tenant ImprovementsIndustry: GovernmentIndustry: CommercialType: Architecture & Engineering+39 more

ZI Engineering, P.C.

Lynbrook, NY

ZI Engineering, P.C. is a multi-disciplinary engineering practice based in Lynbrook, New York, providing construction management, resident engineering, condition assessment, facade inspection, structural design, special inspections, and transportation engineering. The practice delivers services to public agencies and private owners across the New York Metro area, serving clients such as NYCDEP, MTA, NYCSCA, NYCDDC, NYCHA, and NYSOGS.

WebsitePhone2 offices13 projectsUpdated Jun 2026

Project: Water Main Extension/Replacement near NYC Transit Facilities (Project GE353)

Service: Construction Management, Resident Engineering, and Construction InspectionService: Construction ManagementService: Resident Engineering InspectionIndustry: InfrastructureIndustry: TransportationType: Civil Engineering+29 more

exp Federal Inc.

Chicago, IL

Architecture + Engineering | Construction | Mission Support

Website5 offices9 projects1 credentialsFounded 2012Size Estimate: 250-500 employeesUpdated Jun 2026

Project: Fish Dispersal Barrier

Service: ArchitectureService: Master PlanningService: Facilities ProgrammingIndustry: DefenseIndustry: FederalType: Architecture & Engineering+45 more