Public engineering firm directory

Find engineering consulting firms by capability and location.

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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

AEi Systems, Inc.

Centennial, CO

Analytical HEAVY Lifting

WebsitePhone2 offices9 publicationsFounded 1995Size Estimate: 1-25 employeesUpdated Jun 2026

Service detail: Worst-Case Circuit Analysis (WCCA)

Service: Worst-Case Circuit Analysis (WCCA)Service: Pre-WCCA design review and assessmentService: WCCA document reviewIndustry: ElectronicsIndustry: SpaceType: Electrical Engineering+38 more

AT Engineering Services

Long Beach, CA

AT Engineering Services is a California consulting engineering practice providing mechanical, process, oil and gas, energy, petrochemical, chemical, pharmaceutical, industrial, and power engineering services. AT Engineering Services has operated since 1993 and supports clients with technical engineering design and consulting.

WebsitePhone1 officeFounded 1993Updated Jun 2026

Service detail: Mechanical and Plumbing Engineering

Service: Mechanical and Plumbing EngineeringService: Process EngineeringService: Heat Transfer and Piping DesignIndustry: Oil & GasIndustry: PetrochemicalType: Mechanical Engineering+10 more

Achates Power, Inc.

San Diego, CA

Fundamentally Better Engines

WebsitePhone2 offices4 projects2 credentialsFounded 2004Updated Jun 2026

Project: Ultralow NOx Diesel Heavy-Duty Engine Deployment

Service: Opposed-Piston Engine Technology LicensingService: Engine Design LicensingService: Development and Test ToolsIndustry: AutomotiveIndustry: DefenseType: Mechanical Engineering+14 more

Acoustical Engineering Consultants

Elk Grove, CA

Engineering a quieter world and optimizing aural environments, one project at a time.

WebsitePhone2 offices8 projects2 leaders4 credentialsFounded 2008

Project: CalSTRS Headquarters 2.0

Service: Architectural AcousticsService: Room Acoustics Measurement and AnalysisService: Reverberation and Diffusion EngineeringIndustry: EducationIndustry: HealthcareType: Acoustic Consulting+36 more

Advance Design Consultants Inc

San Jose, CA

Experience. Passion. Excellence.

WebsitePhone1 office7 projects2 leadersFounded 1984Updated Jun 2026

Project: BD Utility Chiller Plant (Project Granite)

Service: Architecture & PlanningService: Architectural DesignService: Architectural PlanningIndustry: CommercialIndustry: Data CentersType: Architecture & Engineering+38 more

Agilis Engineering Inc

Palm Beach Gardens, FL

We provide revolutionary insight into the engines that move and power our world.

WebsitePhone5 officesUpdated Jun 2026

Service detail: Measurement Systems

Service: Advanced Turbine Engine Design and DevelopmentService: Measurement SystemsIndustry: AerospaceIndustry: AviationType: Aerospace Engineering+4 more

Anchor QEA

Seattle, WA

Transforming Our Environment and Communities, with Integrity and Vibe

WebsitePhone28 offices4 projects4 leadersSize Estimate: 200-1,000 employeesUpdated Jun 2026

Project: Hancock County Marsh Living Shoreline

Service: EngineeringService: Civil EngineeringService: Coastal ResilienceIndustry: Power GenerationIndustry: FederalType: Civil Engineering+46 more

Applied Engineering Concepts

Pasadena, CA

Applied Engineering Concepts (AEC) is a leading provider of electrical field-testing and power system engineering services with over 30 years of experience. Based in Pasadena, California, AEC delivers acceptance testing, maintenance testing, commissioning and start-up, and power system engineering studies to ensure the safety, reliability, and regulatory compliance of electrical infrastructure.

WebsitePhone1 officeUpdated Jun 2026

Service detail: Acceptance Testing

Service: Acceptance TestingService: Protective relay testingService: Low, medium, and high voltage circuit breaker testingIndustry: Power GenerationIndustry: Electric UtilitiesType: Electrical Engineering+13 more

Argo Performance, Ltd.

San Diego, CA

Smart People Creating Smart Buildings

WebsitePhone1 office7 projects2 leaders4 credentialsUpdated Jun 2026

Project: Gilead Sciences Building 800 Reef TI GMP Plant

Service: Building CommissioningService: Whole Building CommissioningService: RetrocommissioningIndustry: CommercialIndustry: Life SciencesType: Automation & Controls+30 more

Argos Engineers

Torrance, CA

We are solution forward.

WebsitePhone1 office5 projectsFounded 2003Updated Jun 2026

Project: Piping Design

Service: Solid MechanicsService: Stress AnalysisService: Fatigue AnalysisIndustry: Oil & GasIndustry: ChemicalsType: Mechanical Engineering+31 more

Ask Energy Inc

Carlsbad, CA

Building a Greener Future Together.

WebsitePhone7 offices13 leadersFounded 2017Size Estimate: 11-50 employeesUpdated Jun 2026

Service detail: Energy Analysis and Engineering

Service: Energy Analysis and EngineeringService: Energy AuditsService: Energy ModelingIndustry: CommercialIndustry: EducationType: Power & Utility Engineering+9 more

Astral Engineers P.C.

Rancho Cucamonga, CA

Professional Engineering Services - Mechanical, Electrical, Plumbing, Technology, Fire Protection

WebsitePhone2 offices11 projects3 leaders1 credentials1 publications

Project: Mohs & GI Procedure Room Renovation

Service: Mechanical EngineeringService: Air Handling Unit DesignService: Central Utility PlantsIndustry: HealthcareIndustry: FederalType: MEP+51 more

Blair, Church & Flynn Consulting Engineers

Clovis, CA

Service. Quality. Integrity.

WebsitePhone6 offices3 leaders5 credentialsFounded 1958Updated Jun 2026

Service detail: Planning, Permitting & Consulting

Service: Planning, Permitting & ConsultingService: Alternatives AnalysesService: Constructability ReviewsIndustry: Power GenerationIndustry: Electric UtilitiesType: Civil Engineering+72 more

Brierley Associates Corporation

Englewood, CO

Creating Space Underground

WebsitePhone20 offices4 projects6 leaders11 credentialsUpdated Jun 2026

Project: Champlain Hudson Power Express Trenchless Crossings

Service: Tunneling EngineeringService: Trenchless EngineeringService: Horizontal Directional Drilling (HDD)Industry: Water SupplyIndustry: WastewaterType: Geotechnical Engineering+20 more

Broadbent & Associates, Inc.

Tempe, AZ

Broadbent & Associates is a full-service environmental consulting, civil engineering, and water resources firm founded in 1987. With approximately 100 employees and offices across Arizona, California, Colorado, Michigan, Nevada, New Mexico, Oregon, Texas, and Utah, Broadbent helps clients maintain compliance, manage environmental liabilities, and develop resources through environmental assessment and remediation, air quality services, water resources, civil engineering, and health and safety consulting.

WebsitePhone11 officesFounded 1987Size Estimate: 100 employeesUpdated Jun 2026

Service detail: Environmental Assessment & Remediation

Service: Environmental Assessment & RemediationService: Air Quality Permitting & Stack TestingService: Civil EngineeringIndustry: Power GenerationIndustry: MiningType: Environmental Engineering+16 more

Burns Engineering, Inc.

Philadelphia, PA

Partners in Reliability, Resilience, Innovation, Sustainability, and Safety

Website6 offices14 projects12 leaders15 credentials5 publicationsFounded 1960

Project: Pittsburgh International Airport Terminal Modernization Program

Service: Electrical EngineeringService: Power Infrastructure RenewalService: Campus Electrical ModernizationIndustry: AviationIndustry: RailType: Aviation Engineering+52 more

CMTA

Louisville, KY

Building Science Leadership

Website49 offices2 projects3 leaders6 credentialsFounded 1969Size Estimate: 1,560 employees

Project: CMTA Corporate Headquarters Building 2

Service: Consulting EngineeringService: Mechanical EngineeringService: Electrical EngineeringIndustry: ManufacturingIndustry: AviationType: MEP+30 more

Campos EPC, LLC

Denver, CO

The Leader In Energy Infrastructure

WebsitePhone20 offices1 projects11 leaders3 publicationsFounded 2005

Project: 350MW Data Center Power Generation & Substation Facility

Service: EngineeringService: Pipeline EngineeringService: Transmission And Midstream Pipeline DesignIndustry: Oil & GasIndustry: UtilitiesType: EPC+51 more

Cannon Corporation

Irvine, CA

Reliable. Responsive. Solutions.

Website6 offices4 projectsFounded 1976Updated Jun 2026

Project: Space Launch Complex Structural Upgrades, Cape Canaveral

Service: Engineering & DesignService: Structural EngineeringService: Electrical EngineeringIndustry: AerospaceIndustry: DefenseType: Civil Engineering+18 more

Celeris Systems, Inc.

Anaheim, CA

Your Mission, Our Purpose

WebsitePhone3 offices1 leaders1 credentialsFounded 2005Updated Jun 2026

Service detail: Engineering & Mission Integration Services

Service: Engineering & Mission Integration ServicesService: Systems EngineeringService: Integration & TestIndustry: DefenseIndustry: AerospaceType: Defense Engineering+20 more

Cho Design Associates, Inc.

Santa Ana, CA

Structural, Civil, and Public Works Engineering

WebsitePhone1 office1 projectsUpdated Jun 2026

Project: Great Park Pedestrian Bridge

Service: Transportation Facilities and BridgesService: Bridge EngineeringService: Transportation Facility DesignIndustry: TransportationIndustry: BridgesType: Structural Engineering+14 more

Chow Engineering, Inc.

Oakland, CA

Providing Engineering, Construction, and PM Services to Private and Public Entities

Website1 office4 projects5 leaders1 credentialsFounded 1991Size Estimate: 10-50 employees

Project: AC Transit On-Call Engineering and Facilities Support

Service: Design-Build Facilities EngineeringService: Industrial Processing SystemsService: Facility RefurbishmentIndustry: Environmental & RemediationIndustry: GovernmentType: Civil Engineering+25 more

Clean Energy Systems, Inc.

Rancho Cordova, CA

CES offers the world's lowest cost products for carbon-free combustion.

WebsitePhone1 office1 projects7 leaders9 credentials1 publications

Project: ZEUS - Zero Emission Power Station Demo FEED

Service: Oxy-Fuel Combustion TechnologyService: Direct Steam Gas GeneratorsService: Platelet Burner TechnologyIndustry: Power GenerationIndustry: IndustrialType: Aerospace Engineering+14 more