Public engineering firm directory

Find engineering consulting firms by capability and location.

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Burman Design, LLC

Federal Way, WA

Engineered solutions to reflect project requirements

WebsitePhone1 office1 leaders4 credentialsSize Estimate: 10-49 employeesUpdated Jun 2026

Service detail: Mechanical Engineering

Service: Mechanical EngineeringService: HVAC DesignService: Plumbing DesignIndustry: CommercialIndustry: RetailType: Mechanical Engineering+25 more

Casne Engineering, Inc.

Bellevue, WA

Supporting America's Infrastructure

Website1 office3 projects1 publicationsFounded 1981Size Estimate: 100-200 employeesUpdated Jun 2026

Project: Natural Gas Turbine Fleet Monitoring

Service: Electrical EngineeringService: Medium and low voltage equipment and distribution systemsService: Primary and secondary unit substationsIndustry: AerospaceIndustry: Data CentersType: Automation & Controls+50 more

CivTech

Scottsdale, AZ

Quality, integrity, and technical expertise providing innovative engineering solutions for traffic, transportation planning, and design.

WebsitePhone3 offices12 projects7 leadersFounded 2002Size Estimate: 5-25 employees

Project: Palisene Traffic Impact Analysis

Service: Traffic EngineeringService: Traffic Impact Analysis StudiesService: Traffic Control PlansIndustry: GovernmentIndustry: TransportationType: Transportation Engineering+46 more

Columbia Engineering Group

Washougal, WA

Engineering Excellence with Comprehensive Full Service Solutions

WebsitePhone1 office6 projects5 leadersUpdated Jun 2026

Project: Forensic Services Unit Chiller Replacement

Service: Mechanical EngineeringService: HVAC System DesignService: Building AutomationIndustry: CommercialIndustry: RetailType: MEP+70 more

Dalton, Olmsted & Fuglevand

Seattle, WA

Environmental Engineering, Consulting & Strategy

WebsitePhone5 offices13 projects6 leadersFounded 1989Size Estimate: 11-50 employees

Project: Duwamish Waterway Sediment Remediation and Habitat Project

Service: Environmental Remediation & EngineeringService: Federal & State CleanupService: Field Investigation & Conceptual Site ModelingIndustry: Environmental & RemediationIndustry: Stormwater & Flood ControlType: Environmental Engineering+14 more

Diatomic Product Development

Seattle, WA

World-class engineering design and product development consultancy

WebsitePhone1 officeUpdated Jun 2026

Service detail: Product Development

Service: Product DevelopmentService: Opportunity and StrategyService: Research and DefineIndustry: Consumer ProductsIndustry: Medical DevicesType: Mechanical Engineering+26 more

Elliott Bay Design Group

Seattle, WA

Better to Build, Better to Operate

WebsitePhone2 offices9 leaders8 publicationsFounded 1988Size Estimate: 50-100 employees

Service detail: Naval Architecture

Service: Naval ArchitectureService: Passenger and Vehicle Ferry DesignService: Commercial and Workboat DesignIndustry: MarineIndustry: DefenseType: Marine Engineering+7 more

Ethos Civil LLC

Tacoma, WA

Delivering civil engineering design, permitting services, and project management in the Pacific Northwest

WebsitePhone3 offices10 projects4 leadersFounded 2021Size Estimate: 1-9 employees

Project: 124 Tacoma Ave

Service: Civil EngineeringService: Site DesignService: Accessibility DesignIndustry: Land DevelopmentIndustry: EducationType: Civil Engineering+36 more

Fuller Designs & Engineering

Centralia, WA

Constructing a Better Future

WebsitePhone1 office7 projects2 leadersFounded 2018Updated Jun 2026

Project: Hilltop Drive Storm Drainage Improvements

Service: Civil Engineering DesignService: Commercial Civil EngineeringService: Residential Civil EngineeringIndustry: CommercialIndustry: ResidentialType: Civil Engineering+19 more

GDM

Portland, OR

Consistently superior designs.

Website5 offices4 projectsUpdated Jun 2026

Project: Repair and Modernization of USMC Reserve Center

Service: ArchitectureService: ProgrammingService: Schematic DesignIndustry: HealthcareIndustry: LaboratoriesType: Architecture & Engineering+18 more

Hatfield & Dawson Consulting Engineers

Seattle, WA

Telecommunications and electromagnetic engineering consultants since 1945

WebsitePhone1 office6 leadersFounded 1945Updated Jun 2026

Service detail: Telecommunications and RF System Engineering

Service: Telecommunications and RF System EngineeringService: Needs Assessment and Technology EvaluationService: RF System Design and ConfigurationIndustry: TelecommunicationsIndustry: Public SafetyType: Telecom / RF Engineering+11 more

Klein & Associates, Inc.

Hood River, OR

Klein & Associates, Inc. (KA) is a land surveying, civil engineering, and planning firm based in Hood River, Oregon, with over 35 years of experience in Oregon and Washington. KA provides professional land surveying, mapping, civil engineering design, and planning services, with a sister company Trantow Surveying in White Salmon, Washington, and in-house GPS, LiDAR, and GIS capabilities.

WebsitePhone2 officesUpdated Jun 2026

Service detail: Land Surveying

Service: Land SurveyingService: Civil EngineeringService: Subdivision and Residential Site DesignIndustry: Land DevelopmentIndustry: ResidentialType: Civil Engineering+13 more

Lucas Engineering and Management Services

Richland, WA

Performance Delivered

WebsitePhone1 office3 leadersFounded 1994Updated Jun 2026

Service detail: Project Delivery Services

Service: Project Delivery ServicesService: Project ManagementService: Construction ManagementIndustry: NuclearIndustry: CommercialType: Environmental Engineering+31 more

McLaughlin Research Corporation

Keyport, WA

Engineering Solutions for Defense Agencies

Website3 offices1 leadersFounded 1947Updated Jun 2026

Service detail: Engineering Services

Service: Engineering ServicesService: Electrical engineeringService: Mechanical engineeringIndustry: DefenseIndustry: FederalType: Defense Engineering+22 more

Numerical Advisory Solutions

Cary, NC

Trusted software tools, engineering analysis, and design services for nuclear facilities

WebsitePhone4 officesFounded 1974Updated Jun 2026

Service detail: Software

Service: SoftwareService: PROTO-Series SoftwareService: GOTHIC CodeIndustry: NuclearIndustry: Power GenerationType: Software Engineering+13 more

Prizm Land

Bellevue, WA

Where people and projects thrive together

Website1 officeUpdated Jun 2026

Service detail: Site Design

Service: Site DesignService: Site GradingService: Utility DesignIndustry: Land DevelopmentIndustry: GovernmentType: Civil Engineering+11 more

Second Order Effects Inc

El Segundo, CA

The engineer's engineer

WebsitePhone2 offices19 projectsUpdated Jun 2026

Project: Avionics development for a microgravity manufacturing spacecraft

Service: Design and AnalysisService: Aerospace Avionics Design ReviewsService: Aerospace Root Cause AnalysisIndustry: AerospaceIndustry: SpaceType: Aerospace Engineering+21 more

Skybranch Engineering PLLC

Kennewick, WA

Committed to providing excellent service and quality results

WebsitePhone1 officeSize Estimate: 1-10 employeesUpdated Jun 2026

Service detail: Piping Analysis

Service: Piping AnalysisService: Static ASME Pipe Stress AnalysisService: Dynamic ASME Pipe Stress AnalysisIndustry: Oil & GasIndustry: NuclearType: Forensic Engineering+29 more

Säzän Group Inc.

Portland, OR

Buildings That Work | Empowering Client Success

Website5 offices4 projects4 leaders5 credentialsSize Estimate: 130 employeesUpdated Jun 2026

Project: Arlene Schnitzer Concert Hall

Service: MEP Engineering and DesignService: Mechanical EngineeringService: Electrical EngineeringIndustry: HealthcareIndustry: ManufacturingType: MEP+34 more

Toole Design

Silver Spring, MD

Groundbreaking Work That Moves People

Website18 offices4 projects4 leadersFounded 2003Size Estimate: 300-500 employeesUpdated Jun 2026

Project: AASHTO Guide for the Development of Bicycle Facilities

Service: EngineeringService: Conceptual DesignService: Construction AdministrationIndustry: GovernmentIndustry: FederalType: Civil Engineering+40 more

Toth and Associates

Springfield, MO

Full-service consulting engineering specializing in electric utility engineering, structural engineering, civil engineering, land surveying, and GIS.

WebsitePhone5 offices10 leaders1 credentialsFounded 2003Size Estimate: 150-250 employees

Service detail: Electrical Engineering

Service: Electrical EngineeringService: Electrical System PlanningService: Electrical Substation DesignIndustry: Electric UtilitiesIndustry: Power Transmission & DistributionType: Civil Engineering+38 more

Transportation Solutions Inc

Woodinville, WA

Since 1987, Transportation Solutions, Inc. (TSI), a Washington State Certified MiniBusiness, has provided specialized consulting services in transportation planning, traffic operations, and traffic design for a diverse client group throughout the Pacific Northwest. TSI’s staff strive to make the transportation component of each project more successful by reducing costs, time and risk associated with transportation-related issues.

WebsitePhone1 office1 credentialsFounded 1987Updated Jun 2026

Service detail: Transportation Planning

Service: Transportation PlanningService: Conceptual Plan DevelopmentService: Project EntitlementIndustry: TransportationIndustry: Highways & RoadsType: Transportation Engineering+3 more

Tridentis, LLC

Alexandria, VA

The Next Generation Ship Design and Engineering Firm

WebsitePhone4 offices3 projects1 leaders1 credentialsSize Estimate: 10-50 employees

Project: Georgetown Heritage Canal Boat

Service: Ship Design and EngineeringService: Concept Design and Trade StudiesService: Preliminary Vessel DesignIndustry: DefenseIndustry: FederalType: Electrical Engineering+48 more

V+M Structural Design, Inc.

Seattle, WA

Creative solutions for bridges and other structures.

Website3 offices8 projects2 leadersSize Estimate: 10-49 employeesUpdated Jun 2026

Project: Stawamus Chief Pedestrian Bridge

Service: Bridge Planning and DesignService: Pedestrian bridge designService: Roadway bridge designIndustry: BridgesIndustry: TransportationType: Structural Engineering+8 more