Public engineering firm directory

Find engineering consulting firms by capability and location.

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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

Alan Noelle Engineering, Inc.

Santa Barbara, CA

Lighting up the California Central Coast since 2000

Website2 offices3 projects1 credentialsFounded 2000Updated Jun 2026

Project: Chase Palm Park

Service: Electrical Engineering PlansService: Lighting DesignService: OSHPD WorkIndustry: HealthcareIndustry: EducationType: Electrical Engineering+5 more

Ashley & Vance Engineering

San Luis Obispo, CA

Shaping the communities that we call home.

WebsitePhone9 offices7 projectsFounded 2005Size Estimate: 100-150 employeesUpdated Jun 2026

Project: Fountaingrove Passive House

Service: Structural EngineeringService: Cast-in-Place ConcreteService: Post-Tensioned ConcreteIndustry: ResidentialIndustry: Multifamily ResidentialType: Civil Engineering+31 more

BMA Mechanical +

San Luis Obispo, CA

Making spaces comfortable since 1989

WebsitePhone2 officesFounded 1989Updated Jun 2026

Service detail: Mechanical Engineering

Service: Mechanical EngineeringService: Plumbing EngineeringService: Energy EngineeringIndustry: HealthcareIndustry: EducationType: MEP+9 more

Cold Spring Engineering, LLC

Santa Barbara, CA

Engineering Services, Software, Hardware, Systems

WebsitePhone1 officeFounded 2002Updated Jun 2026

Service detail: Engineering Services

Service: Engineering ServicesService: Software EngineeringService: Mechanical EngineeringIndustry: DefenseIndustry: AerospaceType: Aerospace Engineering+16 more

Doyle-Morgan Structural Engineering, Inc.

Santa Barbara, CA

Responsive, Reliable, Reputable Structural Engineering for Estate and Custom Homes

WebsitePhone1 office10 projects1 leaders3 credentialsFounded 2000

Project: East Mountain Drive

Service: New Construction and AdditionsService: Estate and Custom Residential DesignService: Commercial and Industrial BuildingsIndustry: ResidentialIndustry: CommercialType: Structural Engineering+27 more

Earth Systems

Fremont, CA

Shaping Our Communities

WebsitePhone10 offices13 projects10 leaders8 credentialsFounded 1969

Project: Watts Skatepark

Service: Geotechnical EngineeringService: Geotechnical Feasibility StudiesService: Foundation Design ParametersIndustry: GovernmentIndustry: EducationType: Geotechnical Engineering+29 more

GeoSolutions

San Luis Obispo, CA

GeoSolutions is a geotechnical engineering firm providing soils engineering, engineering geology, and construction inspection services along the Central Coast of California. The firm maintains three offices in San Luis Obispo, Santa Maria, and Santa Barbara and serves clients in the planning, design, and construction phases of their projects. Services include geotechnical investigations, percolation and infiltration testing, coastal bluff evaluation, fault and landslide investigation, and special inspection of soils, concrete, masonry, welding, and epoxy.

WebsitePhone3 officesUpdated Jun 2026

Service detail: Geotechnical Engineering

Service: Geotechnical EngineeringService: Soils Engineering ReportsService: Percolation TestingIndustry: InfrastructureIndustry: CommercialType: Geotechnical Engineering+15 more

Greeneridge Sciences, Inc.

Santa Barbara, CA

Acoustics Research and Monitoring

WebsitePhone3 offices1 credentialsSize Estimate: 1-25 employeesUpdated Jun 2026

Service detail: Underwater Acoustic Monitoring

Service: Underwater Acoustic MonitoringService: Acoustic Impact ReportingService: Instrument Design & DevelopmentIndustry: MarineIndustry: Research FacilitiesType: Acoustic Consulting+3 more

John A. Martin & Associates, Inc.

Los Angeles, CA

Structural Solutions Driven by Technology, Experience & Collaboration

WebsitePhone6 offices10 projects84 leaders1 credentialsFounded 1953

Project: Disney Concert Hall

Service: Structural EngineeringService: Seismic Evaluations and RetrofitsService: Computational DesignIndustry: AviationIndustry: EducationType: Structural Engineering+16 more

RRM Design Group

San Luis Obispo, CA

Creating Environments People Enjoy

Website7 offices3 projects1 credentialsUpdated Jun 2026

Project: Lodi Downtown Specific Plan

Service: ArchitectureService: Planning and Urban DesignService: Landscape ArchitectureIndustry: GovernmentIndustry: Land DevelopmentType: Architecture & Engineering+12 more

T&S Structural, Inc.

San Luis Obispo, CA

T&S Structural provides comprehensive structural engineering services across California and Nevada, specializing in steel, concrete, masonry, and timber construction. Established on January 17, 1994, its portfolio spans custom residential, commercial, civic, healthcare, educational, military, industrial, energy, and hospitality projects. The team delivers work from conceptual planning through construction documents and permit issuance, with a focus on efficient, high-quality, and economical design. T&S Structural also offers forensic analysis, expert witness services, photovoltaic panel support system design, and historic structure rehabilitation.

WebsitePhone5 offices2 credentialsFounded 1994Updated Jun 2026

Service detail: Structural Engineering

Service: Structural EngineeringService: Residential Structural DesignService: Commercial and Industrial Structural DesignIndustry: ResidentialIndustry: Multifamily ResidentialType: Structural Engineering+17 more

T&S Structural, Inc.

San Luis Obispo, CA

High Quality, Safe & Economical

WebsitePhone5 offices1 projects2 leaders2 credentialsFounded 1994

Project: Marisol Zero One

Service: Structural EngineeringService: Residential Structural DesignService: Commercial & Industrial Structural DesignIndustry: ResidentialIndustry: Multifamily ResidentialType: Structural Engineering+18 more

Thom Hume Consulting Engineers

San Luis Obispo, CA

Providing structural engineering services on the central coast since 1993

WebsitePhone2 offices6 projects1 leadersFounded 1993Updated Jun 2026

Project: Ocean Bluff Residence

Service: Residential Structural EngineeringService: Commercial Structural EngineeringService: Healthcare Structural EngineeringIndustry: ResidentialIndustry: CommercialType: Structural Engineering+4 more

Wallace Group

San Luis Obispo, CA

Design, Engineer & Deliver

WebsitePhone3 offices14 projects71 leadersFounded 1984Size Estimate: 50-249 employees

Project: US 101/Avila Beach Drive Interchange Improvement Project

Service: Civil and Transportation EngineeringService: Civil and Transportation DesignService: Engineering Services For PublicIndustry: TransportationIndustry: Highways & RoadsType: Civil Engineering+57 more