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

3Vi, Inc.

San Ramon, CA

Engineering Excellence for a Sustainable Future

WebsitePhone3 offices1 leadersUpdated Jun 2026

Service detail: Systems Engineering & Integration

Service: Systems Engineering & IntegrationService: SCADA and Control SystemsService: Communications SystemsIndustry: TransitIndustry: RailType: Electrical Engineering+18 more

A. G. Consulting Engineering, PC

New York, NY

A. G. Consulting Engineering, PC is an established MEP and construction management consulting practice. It offers mechanical, electrical, plumbing, fire protection, fire engineering, LEED consulting, special inspection, and construction management services for infrastructure, institutional, and public works projects.

WebsitePhone5 offices8 projects7 leaders13 credentialsFounded 1994

Project: NYCT Fulton Street Transit Center

Service: MEP EngineeringService: Mechanical and HVAC Systems DesignService: Electrical Systems EngineeringIndustry: TransitIndustry: RailType: MEP+17 more

ADO Engineering, Inc.

South Elgin, IL

Specialized electrical engineering for aviation, transportation, and facilities projects

WebsitePhone1 officeFounded 2011Updated Jun 2026

Service detail: Electrical Systems Design

Service: Electrical Systems DesignService: Facility Electrical EngineeringService: Power Distribution DesignIndustry: AviationIndustry: TransportationType: Electrical Engineering+9 more

ARUSI, LLC

Phoenix, AZ

Powering Your Vision With 35 Years of Experience

WebsitePhone1 office2 projects1 leadersFounded 1987Updated Jun 2026

Project: Sky Harbor International Airport Utility Services

Service: Utility Engineering, Coordination & ConsultingService: System StudiesService: Utility CoordinationIndustry: Electric UtilitiesIndustry: Power Transmission & DistributionType: Electrical Engineering+21 more

AZA Engineering

New York, NY

Build better. Design right.

WebsitePhone1 officeUpdated Jun 2026

Service detail: Mechanical Engineering Design

Service: Mechanical Engineering DesignService: HVAC and Climate Control SystemsService: Commercial Kitchen VentilationIndustry: ResidentialIndustry: CommercialType: MEP+30 more

Advanced Engineering Consultants

Columbus, OH

Advanced Engineering Consultants specializes in providing mechanical, electrical, plumbing, fire protection, technology, and utilities engineering design and construction administration services for the built environment. Established in 1998, the practice works collaboratively with owners, architects, and contractors across the Midwest, the nation, and globally. It has completed nearly 2,000 projects across diverse sectors including government, healthcare, education, and commercial markets.

WebsitePhone4 offices6 projects7 leaders14 credentialsFounded 1998

Project: Columbus Division of Police Crime Laboratory Renovation

Service: Mechanical EngineeringService: HVAC Design and UpgradesService: Electrical EngineeringIndustry: FederalIndustry: GovernmentType: MEP+23 more

Advanced Research and Technology Corporation

Oxnard, CA

Innovations for a Better Tomorrow

WebsitePhone1 office3 projects1 leaders8 credentials2 publications

Project: Navy Threat Simulator Validation Contract

Service: Radar and Electronic Warfare SystemsService: Radar Cross Section Measurement and AnalysisService: Radar Signature ControlIndustry: DefenseIndustry: AerospaceType: Defense Engineering+31 more

Advantage Engineering Associates, P.C.

Cranbury, NJ

Engineering design, construction support and construction inspection services for transportation infrastructure

WebsitePhone2 offices8 projects10 leadersFounded 2004Size Estimate: 70-249 employees

Project: Route 440 Ramp Over Route 35 Bridge Deck Replacement

Service: Transportation EngineeringService: Highway and Traffic EngineeringService: Intelligent Transportation Systems (ITS) EngineeringIndustry: TransportationIndustry: Highways & RoadsType: Civil Engineering+26 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

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

Apex Engineering Corporation

Centreville, MS

Consulting Engineers

WebsitePhone1 office3 projects2 leaders4 credentialsFounded 1997

Project: Highway 61 and Liberty Road Lighting Project

Service: Electrical EngineeringService: Electrical Power DistributionService: Lighting SystemsIndustry: CommercialIndustry: RetailType: Electrical Engineering+26 more

Applied Engineering Services

Indianapolis, IN

Applied Experience. Applied Engineering.

WebsitePhone1 office7 projects6 leaders9 credentialsFounded 1998

Project: Innovation Hall - IUPUI

Service: Mechanical EngineeringService: HVAC & VentilationService: Central Utility Plants & PipingIndustry: ManufacturingIndustry: EducationType: MEP+21 more

Ascent Signal LLC

Electrical control and signaling systems design for transit and transportation infrastructure

WebsiteUpdated Jun 2026

Service detail: Railroad and Transit Systems

Service: Railroad and Transit SystemsService: Train Control System EngineeringService: Rail Transit Communication SystemsIndustry: RailIndustry: TransitType: Automation & Controls+14 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

Ball Maritime Group

25 Years of Maritime Engineering Experience.

Website1 projectsUpdated Jun 2026

Project: Bulkheads, Enmarket Arena

Service: Maritime Strategic PlanningService: Terminal PlanningService: Presentation Graphics & ReportsIndustry: GovernmentIndustry: MarineType: Civil Engineering+27 more

Bridge View Resources, LLC

Vacaville, CA

Optimized and Sustainable Infrastructure Systems

WebsitePhone1 office3 projects4 leaders1 publicationsFounded 2007

Project: 2 Million Square Foot Processing Facility Electrical Coordination and Load Study

Service: Water & Wastewater System EngineeringService: Utility System Privatization & AcquisitionService: Intergovernmental Service Agreements (IGSA)Industry: DefenseIndustry: FederalType: Power & Utility Engineering+27 more

Bridgers & Paxton Consulting Engineers, Inc.

Albuquerque, NM

We make buildings come to life

WebsitePhone3 offices3 projects10 credentialsFounded 1951Updated Jun 2026

Project: Kirtland Air Force Base Microgrid Resiliency Project

Service: Mechanical EngineeringService: Heating, Ventilating, and Air Conditioning (HVAC)Service: Central Plant DesignIndustry: GovernmentIndustry: HealthcareType: MEP+45 more

Bromgrove

Brighton, GA

Providing Engineering, Procurement, Construction and Management solutions globally

Website3 offices3 projects1 leadersFounded 2010Size Estimate: 45 employeesUpdated Jun 2026

Project: WEXMAC 2.0

Service: Engineering ManagementService: International Standards and Code ComplianceService: PEB/LEB Structures with In-House MICC ABMIndustry: FederalIndustry: DefenseType: Civil Engineering+80 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

Byson Solutions Group Corp

Corpus Christi, TX

Multi-Discipline Engineering Solutions Built on Experience

WebsitePhone1 office2 leadersFounded 2019Updated Jun 2026

Service detail: Mechanical Engineering

Service: Mechanical EngineeringService: Pump and Mechanical SystemsService: Marine ApplicationIndustry: CommercialIndustry: GovernmentType: Automation & Controls+36 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