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

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

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

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

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

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

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

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

Barton & Loguidice

Syracuse, NY

The Experience to Listen. The Power to Solve.

WebsitePhone1 office5 projects1 leaders5 credentials5 publications

Project: Rome Water Pollution Control Facility Anaerobic Digestion and Combined Heat and Power Improvements

Service: Water ResourcesService: Water Supply EngineeringService: Wastewater & Water Resource RecoveryIndustry: GovernmentIndustry: FederalType: Architecture & Engineering+61 more

Bath Group, LLC

Corpus Christi, TX

A quality-conscious engineering practice dedicated to achieving client expectations through responsible engineering

Website3 offices4 leaders12 credentialsFounded 1957Size Estimate: 50+ employeesUpdated Jun 2026

Service detail: Electrical Engineering

Service: Electrical EngineeringService: Low Voltage SystemsService: Medium Voltage SystemsIndustry: CommercialIndustry: EducationType: Electrical Engineering+25 more

Beta Engineering

Pineville, LA

Beta Engineering is a high-voltage EPC firm that designs, procures, and constructs substation and transmission line projects across the US for utilities, renewable developers, data centers, and industrial customers. Founded in 1975 as part of the Crest Industries family of companies, Beta delivers turnkey EPC solutions and factory-built substations under its Agile by Beta product line, and has helped clients connect more than 6,000 MW of renewable energy to the grid.

WebsitePhone1 officeFounded 1975Updated Jun 2026

Service detail: Turnkey EPC Substations

Service: Turnkey EPC SubstationsService: Factory-Built SubstationsService: Engineering ServicesIndustry: Electric UtilitiesIndustry: Power Transmission & DistributionType: Electrical Engineering+4 more

Black & Veatch

Building a World of Difference®

WebsiteSize Estimate: 13,000 employeesUpdated Jun 2026

Service detail: Fuels

Service: Infrastructure AdvisoryService: ConstructionService: Power GenerationIndustry: Power GenerationIndustry: Power Transmission & DistributionType: EPC+22 more

Braun Intertec Corp

Bloomington, MN

The Science You Build On

WebsitePhone1 office5 projects7 leadersUpdated Jun 2026

Project: Blue Line Light Rail Extension

Service: Natural Environment ServicesService: Environmental Compliance & PermittingService: Environmental Site Investigation & RemediationIndustry: AerospaceIndustry: CommercialType: Environmental Engineering+24 more

Buzz High Voltage, LLC

Expert Consulting for All Things High Voltage

Website6 projects1 leaders1 credentialsUpdated Jun 2026

Project: Cable Accessory Manufacturer Test Area Design

Service: High Voltage Testing & InspectionService: Dielectric TestingService: Equipment InspectionIndustry: Electric UtilitiesIndustry: GovernmentType: Electrical Engineering+33 more

C6 Engineering, LLC

Electrical, Instrumentation & Controls Services

WebsiteUpdated Jun 2026

Service detail: Project Management and Consulting

Service: Project Management and ConsultingService: Project PlanningService: Feasibility StudiesIndustry: IndustrialIndustry: Renewable EnergyType: Electrical Engineering+30 more

CDG Engineers, Inc.

St. Louis, MO

Engineering a better way.

WebsitePhone4 offices2 projects1 leadersFounded 1992Size Estimate: 100+ employees

Project: Cedar Rapids Reach 1 Flood Protection

Service: Architectural EngineeringService: Civil EngineeringService: Flood ProtectionIndustry: UtilitiesIndustry: Electric UtilitiesType: Civil Engineering+22 more

CHA Consulting, Inc.

Albany, NY

Finding a better way.

Website1 office10 leaders3 credentialsFounded 1952Size Estimate: 2,100 employeesUpdated Jun 2026

Service detail: Transportation Solutions

Service: Transportation SolutionsService: Accelerated Bridge Construction (ABC) Design & ConsultingService: Bridge Design & AnalysisIndustry: TransportationIndustry: Highways & RoadsType: Architecture & Engineering+182 more

CLC Engineering, LLC

Alexandria, LA

CLC Engineering is a consulting practice based in Alexandria, Louisiana, known for its focused, client-driven approach and responsive service. It specializes in civil and structural engineering for foundations, substations, switchyards, and transmission and distribution lines. Additional services include electrical design for high-voltage systems, environmental services, and forensic engineering inspections for industrial, commercial, and residential structures. Licensed in all 50 states and one U.S. territory, CLC manages projects across the continental United States and internationally.

WebsitePhone1 office3 leaders3 credentialsSize Estimate: 11-50 employeesUpdated Jun 2026

Service detail: Civil Design

Service: Civil DesignService: Storm DrainageService: Site GradingIndustry: Power Transmission & DistributionIndustry: Electric UtilitiesType: Civil Engineering+38 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

CMA Architects & Engineers LLC

Guaynabo, PR

Designing Today the Puerto Rico of Tomorrow

WebsitePhone1 office23 leadersUpdated Jun 2026

Service detail: Architecture

Service: ArchitectureService: Space ProgrammingService: Facilities Master PlanningIndustry: Affordable HousingIndustry: CommercialType: Architecture & Engineering+113 more

Celadon Technologies, LLC

Rockville, MD

Solutions for Water, Wastewater, and Energy Efficiency

WebsitePhone1 officeUpdated Jun 2026

Service detail: Water Infrastructure Engineering

Service: Water Infrastructure EngineeringService: Small & Large Diameter Distribution MainsService: Transmission Main DesignIndustry: Water SupplyIndustry: WastewaterType: Water / Wastewater Engineering+31 more

Civil Engineering Consultants, Inc.

Des Moines, IA

Designing Beautiful Environments in Des Moines, Iowa since 1969

WebsitePhone1 office7 leaders3 credentialsFounded 1969Updated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Sanitary sewer designService: Water system designIndustry: Land DevelopmentIndustry: CommercialType: Civil Engineering+77 more

Cliff Nudi Engineering PLLC

New York, NY

Smart, Sustainable, and Value-Added Engineering Services

Website2 offices1 leadersSize Estimate: 1-24 employeesUpdated Jun 2026

Service detail: Mechanical, Electrical, & Plumbing (MEP) Services

Service: Mechanical, Electrical, & Plumbing (MEP) ServicesService: HVAC Systems DesignService: Electrical, Power Distribution, and Lighting Systems DesignIndustry: ResidentialIndustry: CommercialType: Mechanical Engineering+38 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