Public engineering firm directory

Find engineering consulting firms by capability and location.

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Armstrong & Brooks Consulting Engineers, Inc.

Corona, CA

Dependable and cost-effective professional engineering services

WebsitePhone1 office2 leadersFounded 2000Updated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Site and Infrastructure EngineeringService: Domestic WaterIndustry: CommercialIndustry: IndustrialType: Civil Engineering+27 more

Herrera Environmental Consultants

Seattle, WA

Applying science and design in innovative ways

WebsitePhone6 offices3 projectsFounded 1980Size Estimate: 100-199 employeesUpdated Jun 2026

Project: Swan Creek Park Expansion

Service: WaterService: River Engineering and ManagementService: Stream Engineering and ManagementIndustry: GovernmentIndustry: Environmental & RemediationType: Environmental Engineering+24 more

Noble Consultants, Inc.

Petaluma, CA

Civil, Coastal, Estuarine, and Harbor Engineering

WebsitePhone2 offices8 projects1 leadersUpdated Jun 2026

Project: Tracy Pump Plant Fish Bypass Facility Renovation

Service: Coastal EngineeringService: Shoreline ProcessesService: Numerical ModelingIndustry: MarineIndustry: Ports & HarborsType: Civil Engineering+72 more

Pacific Advanced Civil Engineering, Inc.

Fountain Valley, CA

Integrated Water Resource Management

WebsitePhone1 office3 projects1 leaders4 credentialsFounded 1987

Project: Sustainable Water Infrastructure Project - Advanced Water Treatment Facility

Service: Integrated Water Resource ManagementService: Pace's Overall Approach Centers On Multi-use WaterService: WastewaterIndustry: GovernmentIndustry: Water ResourcesType: Civil Engineering+37 more

Questa Engineering Corporation

Point Richmond, CA

Civil, Environmental, and Water Resources Planning and Design

WebsitePhone1 office6 projects2 credentialsUpdated Jun 2026

Project: American Canyon Napa River & Bay Trail

Service: Environmental Planning and Landscape ArchitectureService: Park and Open Space Master PlansService: Habitat Restoration and EnhancementIndustry: Parks & Open SpaceIndustry: Water ResourcesType: Civil Engineering+36 more

RockSol Consulting Group

Thornton, CO

RockSol Consulting Group is a full-service civil and transportation engineering practice founded in 1996. Headquartered in Thornton, Colorado, with multiple regional offices and accredited materials testing laboratories, it delivers engineering services across planning, environmental analysis, structural and geotechnical design, construction management, and inspection. It primarily supports state departments of transportation, federal land agencies, and municipal public works departments throughout the western United States.

WebsitePhone7 offices5 projects5 credentialsFounded 1996Size Estimate: 201-500 employees

Project: US 40 Berthoud Pass West Resurfacing

Service: Transportation EngineeringService: Transportation planning and impact studiesService: Roadway and highway designIndustry: GovernmentIndustry: FederalType: Civil Engineering+45 more

Sanbell

Billings, MT

Intelligent Infrastructure. Enduring Communities.

WebsitePhone14 offices2 leaders2 credentialsFounded 1969Size Estimate: 201-500 employees

Service detail: Civil Engineering

Service: Civil EngineeringService: Site DevelopmentService: Grading and DrainageIndustry: Land DevelopmentIndustry: InfrastructureType: Civil Engineering+57 more

West Coast Civil

San Diego, CA

An Emerging Civil Engineering Practice Dedicated to Growing Communities

WebsitePhone3 offices12 projects3 leadersUpdated Jun 2026

Project: Naval Base Point Loma Pump Station

Service: Land Development EngineeringService: Site Civil DesignService: Grading and Drainage DesignIndustry: Land DevelopmentIndustry: EducationType: Civil Engineering+33 more