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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154 Tech LLC

Santa Barbara, CA

Advanced systems engineering, geospatial intelligence, and end-to-end program lifecycle support

WebsitePhone1 office2 credentialsUpdated Jun 2026

Service detail: Technical Program Management

Service: Technical Program ManagementService: End-to-End Program ManagementService: Risk ManagementIndustry: DefenseIndustry: FederalType: Defense Engineering+28 more

A & S Engineers, Inc.

San Francisco, CA

Full-service Mechanical, Electrical, Plumbing Engineering and Commissioning Firm

Website1 office6 leadersUpdated Jun 2026

Service detail: Mechanical Engineering

Service: Mechanical EngineeringService: HVAC & Hydronic SystemsService: Energy Modeling & AnalysisIndustry: Multifamily ResidentialIndustry: Data CentersType: MEP+18 more

A3 Engineering

Los Angeles, CA

Welcome to a whole new level of MEP commitment to your projects.

WebsitePhone1 office14 projects7 leadersUpdated Jun 2026

Project: Village School

Service: Mechanical EngineeringService: Tailored HVAC system designService: Energy modeling and analysisIndustry: CommercialIndustry: EducationType: MEP+23 more

ADV-SOC, Inc.

San Diego, CA

Mission-Driven.

WebsitePhone1 office9 projects2 leadersFounded 2012Updated Jun 2026

Project: Naval Air Station North Island Soil Investigation

Service: Environmental ServicesService: Phase I and Phase II Environmental Site AssessmentsService: Underground Storage Tank Assessment and ClosureIndustry: FederalIndustry: DefenseType: Architecture & Engineering+39 more

AEPC Group, LLC

Santa Clarita, CA

We build confidence

WebsitePhone1 office1 projects4 leadersUpdated Jun 2026

Project: Offset Success for Aviation Client

Service: ArchitectureService: Schematic and Conceptual Design DevelopmentService: Construction Documents and SpecificationsIndustry: AerospaceIndustry: AviationType: Architecture & Engineering+40 more

AESUS Design Group, LLC

Tempe, AZ

Integrated Architecture & Engineering

WebsitePhone3 offices12 projects2 leaders1 credentialsFounded 2014

Project: 5th Floor Med-Surg Inpatient Wing Gut & Remodel

Service: ArchitectureService: Architectural Concept DesignService: Design Development DocumentationIndustry: HealthcareIndustry: FederalType: Architecture & Engineering+48 more

AGS, Inc.

San Francisco, CA

Enhancing communities and the built environment.

WebsitePhone2 offices6 projects10 leaders7 credentialsFounded 1983

Project: SFO Harvey Milk Terminal Boarding Area B

Service: Geotechnical EngineeringService: Site Characterization & Engineering GeologyService: Seismic Design & AnalysisIndustry: AirportsIndustry: Water SupplyType: Geotechnical Engineering+40 more

ATC Design Group

Escondido, CA

California's Only One Stop Shop

WebsitePhone1 officeFounded 1993Updated Jun 2026

Service detail: Planning and Permitting

Service: Planning and PermittingService: EntitlementsService: Permit ExpeditingIndustry: CommercialIndustry: RetailType: Architecture & Engineering+37 more

AZAD Engineering PC

San Francisco, CA

Efficient Management in Infrastructure Construction

WebsitePhone2 offices1 leadersUpdated Jun 2026

Service detail: Construction Management and Inspection

Service: Construction Management and InspectionService: Resident EngineeringService: Structure RepresentativeIndustry: TransportationIndustry: BridgesType: Civil Engineering+39 more

Abi Engineering Consultants Inc

Santa Ana, CA

Geotechnical, Civil, and Structural Engineering Across California and the Western States

WebsitePhone1 office10 projects2 leadersFounded 2004Updated Jun 2026

Project: LA Metro Gold Line - MSE Wall

Service: Geotechnical EngineeringService: Site Investigation and Subsurface ExplorationService: Foundation Design and Lateral Earth Pressure AnalysisIndustry: CommercialIndustry: IndustrialType: Civil Engineering+39 more

Aix Consulting Inc

Long Beach, CA

The command center for infrastructure and safety. Operational readiness. Absolute precision.

Website3 offices6 projectsUpdated Jun 2026

Project: Pier B On-Dock Rail Support Facility

Service: Infrastructure & ConstructionService: Civil Engineering and DesignService: Construction Management and OversightIndustry: InfrastructureIndustry: TransitType: Civil Engineering+13 more

Aliquot Associates, Inc.

Oakland, CA

Founded in 1980, Aliquot Associates, Inc. is a multi-disciplinary engineering and surveying firm serving public and private clients across the San Francisco Bay Area. The practice offers civil engineering, traffic engineering, and land surveying services from offices in Oakland and Walnut Creek, California. Aliquot brings decades of expertise across diverse project types including public roadways and highways, transit facilities, residential subdivisions, commercial and mixed-use sites, water and sewer systems, stormwater management, and park improvements. With extensive agency-side experience and strong local knowledge across multiple Bay Area jurisdictions, the team provides responsive, customized service from initial planning and feasibility studies through design, permitting, construction, and inspection. Every project is managed directly by a principal, enabling quick decision-making and close coordination with property owners, architects, contractors, and agency representatives.

WebsitePhone2 offices8 projectsFounded 1980Updated Jun 2026

Project: Oakland Army Base Redevelopment

Service: Civil EngineeringService: Feasibility Studies, Land Planning, and Site DevelopmentService: Cost Estimating and Construction PlansIndustry: GovernmentIndustry: Highways & RoadsType: Civil Engineering+40 more

Alpha Omega Engineers

Corona, CA

Alpha Omega Engineers is a licensed structural engineering firm based in Corona, California, serving residential and commercial clients throughout Southern California. With over three decades of experience, Alpha Omega delivers structural inspections, lateral load calculations, and structural plans for homeowners, contractors, and developers in Corona, Riverside, Anaheim, Norwalk, and Buena Park.

WebsitePhone1 office1 leadersUpdated Jun 2026

Service detail: Structural Inspections

Service: Structural InspectionsService: Foundation InspectionService: Roof InspectionIndustry: ResidentialIndustry: CommercialType: Structural Engineering+15 more

Anacapa Engineering and Design, Inc.

Bakersfield, CA

Transform Your Vision with Our Professional Engineering Team.

WebsitePhone1 office2 projects8 leadersFounded 2017Updated Jun 2026

Project: Springville Library

Service: Mechanical EngineeringService: System Design From Prototyping To ProductionService: Creating Reliable Configurations That Optimize PerformanceIndustry: IndustrialIndustry: Renewable EnergyType: Civil Engineering+36 more

Ansync Inc

El Dorado Hills, CA

Innovation to Implementation

Website1 officeUpdated Jun 2026

Service detail: R&D Product Design

Service: R&D Product DesignService: Custom Hardware DevelopmentService: Software DevelopmentIndustry: RoboticsIndustry: Automation & ControlsType: Electrical Engineering+12 more

Ardna Engineering

Rancho Cucamonga, CA

Partnering for Successful Engineering and Construction Management Solutions

WebsitePhone1 officeUpdated Jun 2026

Service detail: Construction and Project Management

Service: Construction and Project ManagementService: Construction ManagementService: Project ManagementIndustry: GovernmentIndustry: CommercialType: Owner's Engineer+14 more

Aunautic Technologies, LLC

National City, CA

Engineering Excellence for Mission Critical Systems

WebsitePhone1 office1 leaders1 credentialsSize Estimate: 1-25 employeesUpdated Jun 2026

Service detail: Systems Engineering

Service: Systems EngineeringService: Requirements Analysis and TraceabilityService: Systems ArchitectureIndustry: DefenseIndustry: FederalType: Defense Engineering+19 more

Auriga Corporation

Milpitas, CA

Auriga Corporation is a privately held engineering consulting firm established in 1990 and headquartered in Milpitas, California. For over 30 years Auriga has served rail and transit agencies, municipal utilities, the United States federal government, state and local governments, and international organizations across project management, electrical engineering, systems engineering, fare and payment collection, and information technology. Its ISO 9001-compliant project managers and consultants average more than 20 years of experience in their respective disciplines.

WebsitePhone1 office4 projects1 credentialsFounded 1990Updated Jun 2026

Project: SFMTA Twin Peaks Tunnel Trackway Improvement Project - Cost and Schedule

Service: Project ManagementService: Project Oversight and CoordinationService: Independent Verification and ValidationIndustry: TransitIndustry: RailType: Electrical Engineering+18 more

Avelar

Walnut Creek, CA

Collaborative & Innovative

WebsitePhone1 office5 projects6 leaders3 credentialsFounded 1976

Project: Combination of Condominium Units and Single-Family Homes

Service: Forensic and Litigation SupportService: Litigation Expert SupportService: Expert Witness TestimonyIndustry: ResidentialIndustry: Multifamily ResidentialType: Architecture & Engineering+38 more

BA Inc.

Los Angeles, CA

BA Inc. provides transportation-related professional engineering design and consulting services to public agencies and private developers. Established in 2004, its practice focuses on drainage and utility design, subsurface utility engineering, encroachment permitting, third-party utility coordination, and construction or project management.

Website1 office3 projectsFounded 2004Updated Jun 2026

Project: LACMTA Projects

Service: Civil EngineeringService: Drainage DesignService: Stormwater ManagementIndustry: TransportationIndustry: GovernmentType: Civil Engineering+15 more

BC Engineering Group, Inc.

Santa Rosa, CA

A New Era of Civil Engineers

WebsitePhone1 office1 projects1 leaders1 credentialsSize Estimate: 10-49 employees

Project: VA Outpatient Clinic

Service: Civil EngineeringService: Grading and DrainageService: Roadway and Utility DesignIndustry: ResidentialIndustry: CommercialType: Civil Engineering+27 more

BELDEN Consulting Engineers

Pleasanton, CA

Over 50 years of expert consulting solutions

WebsitePhone1 officeSize Estimate: 11-50 employeesUpdated Jun 2026

Service detail: Electrical Engineering

Service: Electrical EngineeringService: Power distributionService: Lighting designIndustry: ResidentialIndustry: Multifamily ResidentialType: MEP+28 more

Bengal Engineering Inc.

Goleta, CA

Bengal Engineering Inc. is a small civil engineering firm serving the south coast of California, based in Goleta near Santa Barbara. The practice provides cost-effective, multi-discipline design services across civil, bridge, hydraulic, structural, geotechnical, roadway, trail, and sitework engineering, supporting public agencies and municipalities on flood control, creek restoration, bridge, and infrastructure projects.

WebsitePhone1 office5 projectsUpdated Jun 2026

Project: Lower Mission Creek Flood Control & Habitat Improvements

Service: Civil EngineeringService: Bridge EngineeringService: Hydraulic EngineeringIndustry: BridgesIndustry: Stormwater & Flood ControlType: Civil Engineering+12 more

Blackburn Consulting

Auburn, CA

Our signature is excellence

WebsitePhone5 offices8 leaders4 credentialsFounded 1998Updated Jun 2026

Service detail: Geotechnical Design

Service: Geotechnical DesignService: Subsurface InvestigationsService: Geotechnical AnalysisIndustry: InfrastructureIndustry: TransportationType: Geotechnical Engineering+23 more