Public engineering firm directory

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3 Phase Associates LLC

Chattanooga, TN

Electrical Engineering and Consulting Services

Website1 office2 credentialsFounded 2016Size Estimate: 10-49 employeesUpdated Jun 2026

Service detail: Electrical Engineering

Service: Electrical EngineeringService: Power System CalculationsService: Arc Flash AnalysisIndustry: UtilitiesIndustry: Power Transmission & DistributionType: Electrical Engineering+31 more

AlfaTech

Harmonizing Relationships, Sustainability and Innovation

Website10 projects13 leadersUpdated Jun 2026

Project: The Lucas Museum of Narrative Art

Service: MEP EngineeringService: Mechanical Engineering DesignService: Electrical Engineering DesignIndustry: CommercialIndustry: RetailType: MEP+65 more

Allgeier, Martin and Associates, Inc.

Joplin, MO

It's not just business...it's personal.

WebsitePhone6 offices17 projects20 leaders39 credentialsFounded 1954

Project: Route 66 Bridge

Service: Civil EngineeringService: BridgesService: IntersectionsIndustry: GovernmentIndustry: WastewaterType: Civil Engineering+33 more

Alpha Engineering, Inc.

Indianapolis, IN

Innovative Power Solutions

WebsitePhone1 office3 leadersFounded 1979Updated Jun 2026

Service detail: Power Systems Engineering

Service: Power Systems EngineeringService: Substation EngineeringService: Line DesignIndustry: CommercialIndustry: EducationType: Electrical Engineering+22 more

Amped I LLC

Chicago, IL

We engineer & design systems for the reliability of the power grid.

Website1 office4 projects2 leadersFounded 2010Updated Jun 2026

Project: Solar & Wind Interconnects

Service: Protection & ControlService: Relay ProtectionService: Relay CommunicationsIndustry: Power Transmission & DistributionIndustry: Electric UtilitiesType: Power & Utility Engineering+34 more

Ampirical

Partnering with you to deliver innovative, reliable energy solutions that enhance lives and strengthen the grid.

Website3 projects1 credentialsSize Estimate: 250-500 employeesUpdated Jun 2026

Project: 230kV Transmission Line EPC

Service: Substation EngineeringService: Full physical, civil, structural, and P&C designService: Grounding, shielding, and lightning protectionIndustry: Electric UtilitiesIndustry: Power GenerationType: Automation & Controls+58 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

C.C. Johnson & Malhotra, P.C.

Baltimore, MD

Provide the Highest Level of Service to Our Clients While Delivering Value

WebsitePhone6 offices16 projects8 leadersFounded 1979Size Estimate: 50-100 employees

Project: 540 West Madison

Service: Buildings and FacilitiesService: HVAC Systems DesignService: Electrical Power and LightingIndustry: CommercialIndustry: RetailType: Civil Engineering+58 more

CLP Engineering

Denver, CO

Planning and design with O&M in mind

WebsitePhone1 office8 projects11 leaders1 credentialsUpdated Jun 2026

Project: APG Electrical Distribution System Infrastructure Upgrade

Service: MicrogridsService: Microgrid Systems IntegrationService: Planning and Energy AnalysisIndustry: Electric UtilitiesIndustry: Power Transmission & DistributionType: Power & Utility Engineering+38 more

Cambridge Consultants Inc.

Boston, MA

The deep tech powerhouse of Capgemini

Website1 office1 projects1 leaders1 credentials2 publicationsUpdated Jun 2026

Project: LEGO SMART Play Collaboration

Service: Deep Tech Innovation and Product DevelopmentService: Design Engineering ServicesService: Deep Tech StrategyIndustry: TelecommunicationsIndustry: ElectronicsType: Telecom / RF Engineering+24 more

Coffman Engineers

Anchorage, AK

The Right Team Matters

WebsitePhone23 offices8 projectsFounded 1982Updated Jun 2026

Project: 100 MW Hydrogen Production Plant

Service: Civil EngineeringService: Bridge EngineeringService: Land SurveyingIndustry: CommercialIndustry: RetailType: Civil Engineering+59 more

Columbia Engineering Group

Washougal, WA

Engineering Excellence with Comprehensive Full Service Solutions

WebsitePhone1 office6 projects5 leadersUpdated Jun 2026

Project: Forensic Services Unit Chiller Replacement

Service: Mechanical EngineeringService: HVAC System DesignService: Building AutomationIndustry: CommercialIndustry: RetailType: MEP+70 more

DJA Engineering LLC

Poolesville, MD

Specialists in Electric Power Measurement for Today's Smart Grid Applications

Website1 office1 leaders4 publicationsFounded 2013Updated Jun 2026

Service detail: Power Metrology and Instrumentation

Service: Power Metrology and InstrumentationService: Instrument DesignService: Current & Voltage TransducersIndustry: Electric UtilitiesIndustry: Power Transmission & DistributionType: Electrical Engineering+7 more

Delta G Consulting Engineers, Inc.

Fort Lauderdale, FL

Full-service consulting engineering practice specializing in MEP, fire protection, and LEED-certified designs.

WebsitePhone2 offices2 leaders2 credentialsFounded 1992Size Estimate: 10-49 employees

Service detail: Heating, Ventilation, and Air Conditioning (HVAC)

Service: Heating, Ventilation, and Air Conditioning (HVAC)Service: Chilled Water and Condenser Water SystemsService: Constant Volume Air HandlingIndustry: HealthcareIndustry: AirportsType: MEP+99 more

Emmaty, Inc.

Northborough, MA

Engineering, Construction, and AI & Robotics

WebsitePhone1 officeUpdated Jun 2026

Service detail: Engineering & Design

Service: Engineering & DesignService: ElectricalService: ConstructionIndustry: FederalIndustry: DefenseType: EPC+14 more

EnerNex

Knoxville, TN

Your Trusted Advisor.

WebsitePhone1 office22 leaders1 credentials2 publicationsFounded 2003

Service detail: Electric Energy System Engineering & Analysis

Service: Electric Energy System Engineering & AnalysisService: Transmission and Distribution StudiesService: Bulk Power System AnalysisIndustry: Electric UtilitiesIndustry: Power Transmission & DistributionType: Power & Utility Engineering+36 more

GERS USA LLC

Weston, FL

Generating comprehensive and innovative solutions for the energy sector

WebsitePhone3 officesFounded 1981Updated Jun 2026

Service detail: Power System Studies

Service: Power System StudiesService: Power Systems Planning (Generation and Transmission)Service: Power System Planning (Distribution)Industry: Electric UtilitiesIndustry: Power Transmission & DistributionType: Electrical Engineering+30 more

Green Dade, Inc.

Miami, FL

Powering Innovation, Engineering Perfection

WebsitePhone1 office6 projects1 credentialsUpdated Jun 2026

Project: MDWASD - Pump Station Design and Rehabilitation

Service: Electrical Infrastructure DesignService: Design & ConsultationService: Installation & CommissioningIndustry: Water SupplyIndustry: WastewaterType: Electrical Engineering+19 more

J-Sam EV Solutions, LLC

Macomb, MI

Smarter EV Charging Starts Here

WebsitePhone1 office3 leaders1 publicationsUpdated Jun 2026

Service detail: Operations and Maintenance

Service: Operations and MaintenanceService: EVSE Operations and Maintenance as a ServiceService: Predictive Maintenance and DiagnosticsIndustry: AutomotiveIndustry: Renewable EnergyType: Electrical Engineering+16 more

L2S Engineering LLC

Leesburg, VA

Innovative and Sustainable MEP Engineering Solutions

Website2 officesFounded 2009Updated Jun 2026

Service detail: Mechanical Engineering

Service: Mechanical EngineeringService: Indoor Air QualityService: Air Handling SystemsIndustry: CommercialIndustry: GovernmentType: MEP+56 more

Motor City Electric Co.

Detroit, MI

Full-Service Electrical Contractor

WebsitePhone1 office8 projects5 credentialsFounded 1952Updated Jun 2026

Project: Little Caesars Arena

Service: Turnkey Electrical ContractingService: Design-BuildService: Design-AssistIndustry: AutomotiveIndustry: HealthcareType: Electrical Engineering+36 more

O & S Services

O & S Services is a multi-disciplinary technology consulting practice incorporated in Texas in 2010, delivering electrical, mechanical, industrial, and systems engineering; cybersecurity; and technical translation. It has served the U.S. Department of Defense, major defense contractors including Lockheed Martin, Collins Aerospace, and Bell Flight, and commercial technology companies such as Texas Instruments, Qualcomm, Toyota, and Honeywell. Its engineers have contributed more than 25 articles to IEEE Consumer Electronics Magazine over a decade.

Website1 leaders1 publicationsFounded 2010Updated Jun 2026

Service detail: Engineering Consulting

Service: Engineering ConsultingService: Electrical EngineeringService: Mechanical EngineeringIndustry: DefenseIndustry: FederalType: Electrical Engineering+34 more

Patterson & Dewar Engineers

Norcross, GA

Proudly Serving Clients Since 1947

WebsitePhone1 office3 credentials4 publicationsFounded 1947Updated Jun 2026

Service detail: Electric Utility Solutions

Service: Electric Utility SolutionsService: Transmission SystemsService: SubstationsIndustry: Electric UtilitiesIndustry: Power Transmission & DistributionType: Power & Utility Engineering+33 more

RMF Engineering

Baltimore, MD

Meticulously Planned, Expertly Designed

WebsitePhone11 offices17 projects2 credentialsSize Estimate: 350 employeesUpdated Jun 2026

Project: Allston Campus District Energy Plant

Service: MEP Building EngineeringService: Building Energy Modeling and Performance AnalysisService: Equipment Upgrades, Efficiency Measures, and Controls IntegrationIndustry: EducationIndustry: HealthcareType: MEP+36 more