Public engineering firm directory

Find engineering consulting firms by capability and location.

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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

Wallace Group

San Luis Obispo, CA

Design, Engineer & Deliver

WebsitePhone3 offices14 projects71 leadersFounded 1984Size Estimate: 50-249 employees

Project: US 101/Avila Beach Drive Interchange Improvement Project

Service: Civil and Transportation EngineeringService: Civil and Transportation DesignService: Engineering Services For PublicIndustry: TransportationIndustry: Highways & RoadsType: Civil Engineering+57 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

Wesley R. Segawa and Associates, Inc.

Honolulu, HI

Committed to Quality Performance, Value & Continuous Improvement

WebsitePhone3 offices1 projectsFounded 1981Size Estimate: 25+ employeesUpdated Jun 2026

Project: Hyatt Regency Waikoloa

Service: Civil EngineeringService: Transportation EngineeringService: Educational FacilitiesIndustry: CommercialIndustry: ResidentialType: Civil Engineering+35 more

Westlake Consultants, Inc.

Tigard, OR

Begin with the end in mind.

WebsitePhone1 office6 projectsFounded 1983Updated Jun 2026

Project: The Village at Mary's Woods Senior Living Campus Expansion

Service: Land Use PlanningService: Middle Housing & Affordable Housing DevelopmentService: Zoning & Design ReviewIndustry: CommercialIndustry: ResidentialType: Civil Engineering+33 more

Weston & Sampson

Your world is always changing, & so are we.

Website8 projects6 credentialsUpdated Jun 2026

Project: Church Creek Drainage Basin Flood Reduction Study

Service: PlanningService: Community & Comprehensive PlanningService: Zoning & DevelopmentIndustry: GovernmentIndustry: UtilitiesType: Architecture & Engineering+79 more

Westwood Professional Services

Multi-discipline professional engineering and land surveying solutions

Website4 projects4 leaders4 credentialsUpdated Jun 2026

Project: Edwards-Sandborn Solar + Storage

Service: ArchitectureService: Landscape ArchitectureService: Civil EngineeringIndustry: CommercialIndustry: Data CentersType: Architecture & Engineering+53 more

White Engineering, Inc.

Pittsfield, MA

Civil & Environmental Engineering

WebsitePhone1 office3 projects2 leadersFounded 1993Updated Jun 2026

Project: Sheffield Septic System

Service: Civil EngineeringService: Construction Cost EstimatesService: Construction Management and InspectionIndustry: CommercialIndustry: ResidentialType: Civil Engineering+51 more

Wi-Skies, LLC

Professional and Experienced Engineers

Website8 projects20 leaders7 credentialsFounded 2014Size Estimate: 10-49 employeesUpdated Jun 2026

Project: Illinois DOT Call Lighting Design Services (District 1)

Service: Transportation Electrical EngineeringService: Roadway LightingService: Intelligent Transportation SystemsIndustry: GovernmentIndustry: TransportationType: Aviation Engineering+36 more

Wilson & Company, Inc., Engineers & Architects

Salina, KS

Over 90 Years of Delivering Excellence

Website5 offices3 projects19 leaders1 credentialsFounded 1932Size Estimate: 700 employees

Project: Mettie Jordan Elementary School

Service: EngineeringService: Civil EngineeringService: Transportation EngineeringIndustry: EducationIndustry: GovernmentType: Architecture & Engineering+36 more

Wilson Engineering Services, PC

Meadville, PA

Energy. Environment. Enterprise.

WebsitePhone2 offices5 projectsUpdated Jun 2026

Project: Crawford Central Biomass CHP District Energy Project

Service: Decarbonization Planning & ImplementationService: Thermal Energy DecarbonizationService: Alternative Fuels & BioenergyIndustry: CommercialIndustry: IndustrialType: Power & Utility Engineering+16 more

Windsor Engineers

Ridgefield, WA

Engineering systems that communities depend on.

WebsitePhone4 offices7 projects8 leaders2 credentialsSize Estimate: 10-50 employees

Project: Cannon Beach Water Resiliency

Service: Mechanical EngineeringService: High-Efficiency HVAC and Hydronic System DesignService: Ventilation and Indoor Air Quality SystemsIndustry: GovernmentIndustry: HospitalityType: MEP+43 more

Woocheen

People and planet define Woocheen.

Website4 projects3 leadersUpdated Jun 2026

Project: Med Wind

Service: Offshore Geotechnical and Geophysical Site CharacterizationService: Foundation, Mooring, and Cable Route CharacterizationService: Cone Penetration TestingIndustry: MarineIndustry: WindType: Geotechnical Engineering+22 more

Wood Patel & Associates, Inc.

Phoenix, AZ

Arizona's Premier Civil Engineering Practice Since 1984

Website1 office38 projects1 leaders3 publicationsFounded 1984Updated Jun 2026

Project: The Grove 44 Camelback

Service: Civil EngineeringService: MunicipalService: Residential & Master Planned CommunitiesIndustry: CommercialIndustry: EducationType: Civil Engineering+35 more

Xdesign Engineering Services

Washington, DC

Innovative Engineering Solutions

Website1 officeUpdated Jun 2026

Service detail: Electrical Engineering

Service: Electrical EngineeringService: Power Distribution DesignService: Lighting DesignIndustry: ManufacturingIndustry: HealthcareType: Electrical Engineering+28 more

YarCom Inc.

Incline Village, NV

Celebrating 25+ years of service to our clients

WebsitePhone1 officeFounded 1998Updated Jun 2026

Service detail: Electrical and Electronic Engineering

Service: Electrical and Electronic EngineeringService: Power Systems EngineeringService: Electronic Hardware EngineeringIndustry: GovernmentIndustry: SolarType: Electrical Engineering+20 more

ZEXERGY Solutions, LLC

Tucson, AZ

Sustainability & Renewable Energy Experts

WebsitePhone1 officeUpdated Jun 2026

Service detail: Energy Systems Design & Engineering

Service: Energy Systems Design & EngineeringService: System DesignService: Techno-Economic AnalysisIndustry: Renewable EnergyIndustry: CommercialType: Power & Utility Engineering+4 more

dbHMS

Chicago, IL

Impact Through Engineering

Website7 offices2 projects1 leadersFounded 2002Updated Jun 2026

Project: The Keller Center, The University of Chicago

Service: Mechanical, Electrical, Plumbing & Fire Protection DesignService: Engineered HVAC SystemsService: Engineered Electrical SystemsIndustry: EducationIndustry: GovernmentType: MEP+45 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

iFactor

iFactor is a boutique MEP engineering and commissioning firm that specializes in consulting, engineering, and design services for complex facilities. With over 15 years in business across three offices, iFactor's engineers have designed more than 55 million square feet of mission-critical space and completed more than 145 LEED-certified projects for Fortune 500 clients in healthcare, critical facilities, retail, entertainment, defense, and science and technology sectors. iFactor has master-planned over $10 billion worth of infrastructure construction and upgrades, and its certified commissioning agents establish pre- and post-occupancy procedures to ensure systems perform throughout their life cycle.

Website8 credentialsUpdated Jun 2026

Service detail: MEP Engineering

Service: MEP EngineeringService: Commissioning ServicesService: Campus Master PlanningIndustry: HealthcareIndustry: Mission Critical FacilitiesType: MEP+8 more

ms consultants, inc.

Engineers, Architects, Planners

Website6 projects4 credentialsUpdated Jun 2026

Project: Big Walnut Fire Station

Service: Transportation EngineeringService: Roadway and traffic designService: TrafficIndustry: TransportationIndustry: Highways & RoadsType: Architecture & Engineering+38 more