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.

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Wilson Ihrig

San Francisco, CA

Acoustics, Noise & Vibration

Website4 offices4 projects7 leaders3 credentialsFounded 1966Updated Jun 2026

Project: Benaroya Hall Vibration Isolation

Service: Acoustics and Noise Control ConsultingService: Architectural AcousticsService: Transit and Transportation Noise ControlIndustry: TransportationIndustry: TransitType: Acoustic Consulting+20 more

Windlass Logistics, LLC

San Diego, CA

Engineering & Logistics Support Services to the Maritime Industry Worldwide

WebsitePhone1 officeUpdated Jun 2026

Service detail: Training

Service: TrainingService: Technical WritingService: ProvisioningIndustry: DefenseIndustry: MarineType: Naval Architecture+3 more

Windward Engineers & Consultants

Minneapolis, MN

Bold Solutions, Bold Designs

WebsitePhone7 offices3 projects1 leaders1 credentials3 publications

Project: Culliton Park

Service: MEP EngineeringService: Mechanical EngineeringService: Electrical EngineeringIndustry: CommercialIndustry: RetailType: MEP+8 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

Wood Rodgers, Inc.

Sacramento, CA

Engineering With a Cause

WebsitePhone10 offices7 leadersUpdated Jun 2026

Service detail: Aviation

Service: AviationService: EnvironmentalService: Technical ReportsIndustry: TransportationIndustry: GovernmentType: Civil Engineering+57 more

Woodard & Curran

Portland, ME

Clean Water, Safe Environment, Healthy Communities, Happy People

Website25 offices3 projects7 leadersFounded 1979Size Estimate: 1,300+ employeesUpdated Jun 2026

Project: Lead Testing in NYC Drinking Water Fountains

Service: WaterService: Water TreatmentService: Water ReuseIndustry: GovernmentIndustry: EducationType: Design-Build+15 more

X-Feds, Inc.

San Diego, CA

X-perience. X-pertise. X-cellence.

Website1 office4 projects3 credentialsFounded 2004Updated Jun 2026

Project: Navy First ATO for Azure (NAVSEA / Microsoft)

Service: Security EngineeringService: Information AssuranceService: Multi-Level Security EngineeringIndustry: DefenseIndustry: FederalType: Defense Engineering+21 more

Xanthus Consulting International, Inc.

Boulder Creek, CA

Smart Grid Consulting

WebsitePhone1 office1 leadersFounded 2005Updated Jun 2026

Service detail: Smart Grid Consulting

Service: Smart Grid ConsultingService: Smart Grid Project AdvisingService: Technical Specifications DevelopmentIndustry: Electric UtilitiesIndustry: Power Transmission & DistributionType: Automation & Controls+6 more

Yamabe & Horn Engineering, Inc.

Fresno, CA

A committed team providing high quality engineering services for our clients and community since 1979.

WebsitePhone1 office4 projects4 credentialsFounded 1979Updated Jun 2026

Project: Bethel Avenue Rehabilitation

Service: Municipal EngineeringService: City Engineering ServicesService: Infrastructure Planning & DesignIndustry: GovernmentIndustry: Highways & RoadsType: Civil Engineering+24 more

Yao Engineering, Inc.

Pasadena, CA

Yao Engineering, Inc. is a professional engineering firm founded in 2018 and headquartered in Pasadena, California. It specializes in Mechanical, Electrical, Plumbing, Fire Protection, and Instrumentation and Controls Engineering. Yao Engineering serves federal, state, and local agencies, with notable project experience in condition assessments and electrical/instrumentation systems for utilities including Owens Lake and Pasadena Water & Power.

Website1 office4 projectsFounded 2018Updated Jun 2026

Project: Owens Lake Condition Assessment

Service: Mechanical EngineeringService: Electrical EngineeringService: Plumbing EngineeringIndustry: Water SupplyIndustry: Electric UtilitiesType: MEP+5 more

Yei Engineers Inc

Oakland, CA

Design Excellence | Collaboration | Innovation | Sustainability

Website3 officesFounded 1975Updated Jun 2026

Service detail: Electrical Engineering

Service: Electrical EngineeringService: Short Circuit and Coordination StudiesService: Arc Flash StudiesIndustry: Arts & CultureIndustry: AviationType: Fire Protection Engineering+22 more

Yushin Consulting Group Inc

Fresno, CA

Transforming your vision into reality

WebsitePhone5 offices5 projects3 credentialsUpdated Jun 2026

Project: Yosemite Avenue Subdivision

Service: Civil Engineering & Land DevelopmentService: ADA DesignService: Grading and DrainageIndustry: ResidentialIndustry: CommercialType: Civil Engineering+18 more

ZFA Structural Engineers

Santa Rosa, CA

The best solutions begin with the right people asking the right questions.

Website4 offices4 projects2 leaders1 credentialsFounded 1974Size Estimate: 10-99 employees

Project: Palo Alto Visa Building Eccentric BRB

Service: Structural DesignService: Standard Materials Structural DesignService: Innovative Materials DesignIndustry: EducationIndustry: GovernmentType: Structural Engineering+17 more

Zajda Group Inc.

Oceanside, CA

Providing Professional Civil Engineering Services

WebsitePhone1 office1 leaders1 credentialsSize Estimate: 1-10 employeesUpdated Jun 2026

Service detail: Land Development and Planning

Service: Land Development and PlanningService: Entitlements and FeasibilityService: Grading and DrainageIndustry: Land DevelopmentIndustry: ResidentialType: Civil Engineering+18 more

Zeetachec LLC

San Diego, CA

Transforming Naval Training from the Seafloor Up

WebsitePhone1 office2 leaders1 credentialsSize Estimate: 1-10 employeesUpdated Jun 2026

Service detail: Maritime Training Systems Engineering

Service: Maritime Training Systems EngineeringService: Tactical Underwater SensorsService: Inert Mock Sea MinesIndustry: DefenseIndustry: MarineType: Defense Engineering+4 more

Zeltmacher Structural Design Engineering

Visalia, CA

Service Through Preeminence

WebsitePhone1 office16 projects12 leaders1 credentialsFounded 2010

Project: Traveler's Motel Affordable Housing Redevelopment

Service: Structural Systems Design, Analysis, and DetailingService: Wood, Steel, Concrete, and Masonry DesignService: Performance and Safety AnalysisIndustry: GovernmentIndustry: EducationType: Structural Engineering+24 more

iAssociates

Alameda, CA

San Francisco Bay Area Structural Engineers

Website1 office1 leadersFounded 2005Size Estimate: 1-9 employeesUpdated Jun 2026

Service detail: Structural Engineering

Service: Structural EngineeringService: Structural Design for New ConstructionService: Structural Renovation and RetrofittingIndustry: ResidentialIndustry: CommercialType: Structural Engineering+3 more

schlaich bergermann partner

Stuttgart, NY

We design outstanding projects

Website9 officesFounded 1980Updated Jun 2026

Service detail: Structural Design and Engineering

Service: Structural Design and EngineeringService: Lightweight StructuresService: Moveable StructuresIndustry: BridgesIndustry: Sports & RecreationType: Structural Engineering+8 more

schlaich bergermann partner (sbp)

Stuttgart, NY

We design outstanding projects

Website9 offices8 projects6 leaders3 credentialsFounded 1980Size Estimate: 300+ employees

Project: Sentry Bridge, Watkins Glen State Park

Service: Structural Design & EngineeringService: Long-Span Roof StructuresService: Bridge Design & EngineeringIndustry: Sports & RecreationIndustry: BridgesType: Structural Engineering+26 more