Public engineering firm directory

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State: WAIndustry: hydroelectricClear all
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WA9AB1BC1CA1QC1

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Redmond2Seattle2Bellingham1Bothell1Covington1

Services

Dams, Spillways, and Outlet Works2Geotechnical Engineering2Advanced Engineering1Advanced Modelling and Analysis1Air Quality Monitoring1

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Hydroelectric9Environmental & Remediation5Federal5Water Resources5Government3

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Environmental Engineering5Geotechnical Engineering4Water / Wastewater Engineering3Civil Engineering2Coastal Engineering2

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Showing 1-9 of 9

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Clear Stone Geo, LLC

Spokane, WA

Specializing in geological, geotechnical, environmental, and dam services

WebsitePhone1 office7 projectsSize Estimate: 1-10 employeesUpdated Jun 2026

Project: Noxon Rapids Dam Drain Cleaning

Service: Dam and Hydroelectric ServicesService: Dam Drain InspectionService: Dam Drain CleaningIndustry: HydroelectricIndustry: Water ResourcesType: Geotechnical Engineering+14 more
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Dynamic Solutions International, LLC

Edmonds, WA

Global Experts in Environmental Fluid Dynamics

Website2 offices6 projects2 leadersFounded 1999Updated Jun 2026

Project: Nam Gnouang Dam Failure Hydraulic Analysis for Emergency Action Plan

Service: Water Resources and Environmental EngineeringService: Hydropower and Reservoir ModelingService: Coastal and Marine EngineeringIndustry: Water ResourcesIndustry: Environmental & RemediationType: Environmental Engineering+20 more
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McHale & Associates, Inc.

Redmond, WA

Complete Performance Solutions

WebsitePhone2 offices1 credentials1 publicationsFounded 1995Updated Jun 2026

Service detail: Performance Testing

Service: Performance TestingService: Power Plant or Component Contractual Acceptance TestingService: CTI Licensed Independent Cooling Tower TestingIndustry: Power GenerationIndustry: Renewable EnergyType: Power & Utility Engineering+27 more
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Meridian Environmental, Inc.

Seattle, WA

Environmental Science and Regulatory Compliance Services

WebsitePhone1 office2 projects4 credentialsSize Estimate: 5-20 employeesUpdated Jun 2026

Project: Lewis River FERC License Implementation Studies

Service: Aquatic ResourcesService: Fish passage assessmentsService: Instream habitat assessments and flow studiesIndustry: HydroelectricIndustry: Natural ResourcesType: Environmental Engineering+15 more
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Migizi Group Inc

Bothell, WA

Full-service environmental, geotechnical, civil, and surveying consulting

WebsitePhone2 offices10 projects2 leadersFounded 2012Updated Jun 2026

Project: Port of Bellingham - Multiple Hazardous Materials Surveys

Service: Environmental EngineeringService: Phase I Environmental Site AssessmentsService: Phase II Environmental Site AssessmentsIndustry: EducationIndustry: Environmental & RemediationType: Civil Engineering+70 more
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Mosi-Oa-Tunya Geotechnical, PLLC

Covington, WA

We Pledge Ourselves to the Best in Client Satisfaction

WebsitePhone1 office1 leaders1 credentials1 publicationsFounded 2023

Service detail: Geotechnical Engineering

Service: Geotechnical EngineeringService: Foundation DesignService: Ground ImprovementIndustry: ResidentialIndustry: Multifamily ResidentialType: Geotechnical Engineering+9 more
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Northwest Hydraulic Consultants Inc

Seattle, WA

Meeting Water Resource Needs of People and the Environment

Website11 offices14 projectsFounded 1972Size Estimate: 200 employeesUpdated Jun 2026

Project: BC Hydro Hydroclimate Monitoring Network

Service: Water Resources EngineeringService: Hydrology, Climate Change, and Water ManagementService: Flood Hazard Assessment and Risk ManagementIndustry: Water ResourcesIndustry: Water SupplyType: Coastal Engineering+31 more
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RIE Consultants, LLC

Redmond, WA

Committed To Helping Our Clients Succeed

WebsitePhone1 office3 projects5 leaders1 credentials9 publications

Project: Tarrant Regional Water District & City of Dallas Integrated Pipeline System Transient Analysis

Service: Hydrologic and Hydraulic ModelingService: Flooding analysis and managementService: Sediment transport analysis and managementIndustry: Water SupplyIndustry: UtilitiesType: Water / Wastewater Engineering+33 more
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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
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