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

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

A2Z Engineering, PLLC

Kalispell, MT

Civil and Structural Engineers Montana

WebsitePhone1 office2 projects1 leadersFounded 1986Updated Jun 2026

Project: Flathead Lake Engineered Septic System

Service: PowerService: Substation DesignService: Transmission Line DesignIndustry: Electric UtilitiesIndustry: Land DevelopmentType: Civil Engineering+19 more

AED Energy Services

Wyomissing, PA

Designing America's Energy Lifelines

WebsitePhone4 offices9 leaders4 credentialsFounded 1989Updated Jun 2026

Service detail: Chemical and Process Design

Service: Chemical and Process DesignService: Documentation and AnalysisService: Specialized CalculationsIndustry: Oil & GasIndustry: PetrochemicalType: Chemical Engineering+64 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

AKRF

AKRF is a multidisciplinary consulting and engineering firm with more than 400 employees across 16 offices and remote locations nationwide. It provides integrated environmental, planning, engineering, and technical services to clients in land development, transportation, energy, and water sectors. AKRF's expertise spans environmental impact assessment, civil engineering, traffic and transportation planning, acoustics, geotechnical engineering, water resources, site remediation, landscape architecture, and climate resilience and adaptation.

Website8 leadersSize Estimate: 400 employeesUpdated Jun 2026

Service detail: Environmental Services

Service: Environmental ServicesService: Environmental Impact AssessmentService: Air QualityIndustry: Land DevelopmentIndustry: TransportationType: Civil Engineering+50 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

Acres LLC

West Norriton, PA

Utility Engineering & Infrastructure Design

Website1 office1 leadersFounded 2022Updated Jun 2026

Service detail: Utility Engineering Design

Service: Utility Engineering DesignService: Water Distribution Infrastructure DesignService: Power Distribution Infrastructure DesignIndustry: UtilitiesIndustry: Water SupplyType: Civil Engineering+15 more

Agbara Engineering

West Palm Beach, FL

Powering Progress, Empowering Communities

Website1 office8 leaders1 credentialsUpdated Jun 2026

Service detail: Transmission Line Engineering

Service: Transmission Line EngineeringService: Design and PlanningService: Upgrades and ExpansionIndustry: Power Transmission & DistributionIndustry: Electric UtilitiesType: Power & Utility Engineering+19 more

Allen & Hoshall

Memphis, TN

Engineers - Architects - Surveyors

WebsitePhone9 offices7 projects13 leaders4 credentialsFounded 1915

Project: Chattanooga Terminal Expansion and Renovation

Service: ArchitectureService: PlanningService: Construction DocumentationIndustry: AviationIndustry: EducationType: Architecture & Engineering+35 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

Alpha Land Surveying & Mapping

Omaha, NE

Alpha Land Surveying & Mapping (ALSM) was founded in January 1996 by Fred M. Franklin, PLS, in Oakland, Nebraska, and has grown into a regional land surveying practice serving Nebraska and Florida. ALSM provides boundary, ALTA/ACSM, topographic, elevation certificate, and FEMA/LOMA/GIS surveys, along with construction staking and aerial drone services. A technology-forward practice, ALSM offers aerial drone photogrammetry and LiDAR scanning for power-line corridors, railway corridors, cell towers, and general corridor mapping, producing 3D point clouds, 2D and 3D orthomosaic maps, and BIM-ready spatial data. The firm operates from offices in Omaha, Oakland, South Sioux City, Norfolk, and Blair, Nebraska, and Tampa, Florida.

WebsitePhone6 offices1 leadersFounded 1996Updated Jun 2026

Service detail: Land Surveying

Service: Land SurveyingService: ALTA/ACSM SurveysService: Boundary SurveysIndustry: Land DevelopmentIndustry: Multifamily ResidentialType: Land Surveying+17 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

Anchorpoint Engineering Inc

College Station, TX

Power Delivery Engineering built for real-world execution

Website4 officesUpdated Jun 2026

Service detail: Transmission Engineering

Service: Transmission EngineeringService: Line Design and ModelingService: PLS-CADD Modeling and AnalysisIndustry: Power Transmission & DistributionIndustry: Electric UtilitiesType: Power & Utility Engineering+39 more

Anderson Arellano Engineering, PLLC

Engineering Solutions Across Industries, Built on Precision

WebsiteSize Estimate: 1-25 employeesUpdated Jun 2026

Service detail: Foundation Mapping

Service: Foundation MappingService: Reinforcing steel details mappingService: Concrete compressive strength determinationIndustry: Power GenerationIndustry: Power Transmission & DistributionType: Structural Engineering+33 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

Asplundh Engineering Services, LLC

Horsham, PA

The name you trust for power generation, transmission and distribution infrastructure engineering services

Website1 office4 projectsUpdated Jun 2026

Project: Eversource Utilities Distribution Services

Service: Distribution EngineeringService: Greenfield Distribution DesignService: System Investigation and NESC ComplianceIndustry: Electric UtilitiesIndustry: Power Transmission & DistributionType: Power & Utility Engineering+30 more

Atwell

Southfield, MI

We create solutions for the built environment.

Website18 offices12 projects6 leaders8 credentialsSize Estimate: 1,000+ employeesUpdated Jun 2026

Project: Walmart Metro Atlanta Drone Delivery Operations Support

Service: Program & Development ServicesService: Program ManagementService: Owner's Representative ServicesIndustry: Land DevelopmentIndustry: Oil & GasType: Civil Engineering+38 more

Atwell & Gent, P.A.

Starkville, MS

Client-focused, project-driven electrical engineering and consulting

WebsitePhone1 office1 projectsUpdated Jun 2026

Project: Mary Haughton 46 kV Transmission Line

Service: Power Systems EngineeringService: Transmission Line DesignService: Substation DesignIndustry: Electric UtilitiesIndustry: Power Transmission & DistributionType: Electrical Engineering+8 more

Ayres Associates Inc.

Ingenuity, Integrity, and Intelligence.

Website18 projectsUpdated Jun 2026

Project: Bent Tree Wind Farm

Service: Civil + Municipal EngineeringService: Roadway DesignService: Structural Design & InspectionIndustry: GovernmentIndustry: EducationType: Civil Engineering+29 more

BCP Engineers & Consultants

Metairie, LA

Bridging the Gap Between Design and Operations

WebsitePhone1 office12 leadersFounded 1981Updated Jun 2026

Service detail: Engineering & Project Management

Service: Engineering & Project ManagementService: Engineering ConsultingService: Outage ManagementIndustry: NuclearIndustry: Power GenerationType: Power & Utility Engineering+25 more

BGE, Inc.

Houston, TX

Serving. Leading. Solving.â„¢

Website2 offices9 projects15 leaders4 credentialsFounded 1975Updated Jun 2026

Project: IH-35 Waco 4B

Service: Construction ManagementService: Contractor & Subcontractor ManagementService: Field InspectionsIndustry: CommercialIndustry: GovernmentType: Civil Engineering+61 more