Public engineering firm directory

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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

AM Power Solutions & Services LLC

Liberty Lake, WA

AM Power Solutions & Services LLC is an engineering and consulting practice specializing in tailored power and automation solutions. It serves power generation, utility, and industrial clients with a team of field-experienced engineers. In addition to traditional utility networks, the practice possesses specialized experience in isolated power systems and microgrid applications.

WebsitePhone1 office1 leadersUpdated Jun 2026

Service detail: Substation and Plant Installations

Service: Substation and Plant InstallationsService: Plant InstallationsService: Substation InstallationsIndustry: Power GenerationIndustry: UtilitiesType: Automation & Controls+28 more

ARC Engineering, LLC

Sheridan, WY

When It Comes to Electrically Engineered Solutions, We Are Your Partner!

Website1 office3 projects4 leadersFounded 2019Updated Jun 2026

Project: Municipal Water Treatment Plant PLC Replacement

Service: Substation DesignService: New Substation DesignService: Substation UpgradesIndustry: Electric UtilitiesIndustry: Power GenerationType: Electrical Engineering+14 more

ARM Group LLC

Hummelstown, PA

Precise. Responsive. Solutions.

WebsitePhone1 office1 projects8 credentialsFounded 1998Size Estimate: 250-500 employees

Project: Annapolis Landfill Solar

Service: Civil Engineering & Land SurveyingService: Site Planning & EntitlementService: Site Plan DesignIndustry: CommercialIndustry: RetailType: Automation & Controls+52 more

ASUSE Incorporated

Tempe, AZ

Transform Your Vision Into Reality with ASUSE

WebsitePhone1 office1 projects3 credentialsFounded 2021Size Estimate: 1-25 employees

Project: Ak-Chin Indian Community Utility Infrastructure

Service: Engineering DesignService: Power Distribution DesignService: Communication Infrastructure DesignIndustry: Power GenerationIndustry: Oil & GasType: Design-Build+21 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

AccelaBlue Advisory Group

The Advisor Who Sees the Whole Deal

Website3 projects1 leaders2 credentialsUpdated Jun 2026

Project: 340 MW Hyperscale Data Center & AI Factory

Service: Technical Feasibility & Site AssessmentService: Site & Grid CharacterizationService: Resource AssessmentIndustry: Data CentersIndustry: NuclearType: Owner's Engineer+38 more

Acker & Associates

Green Bay, WI

Consulting engineering, audits and analysis

WebsitePhone1 office4 projects1 leaders3 credentials3 publications

Project: Curwood Gas-Fired Make-Up Air System Design

Service: Condensation & Moisture AnalysisService: Building Water Vapor TransmissionService: Blower Door & Infrared DiagnosticsIndustry: Pulp & PaperIndustry: IndustrialType: Mechanical Engineering+23 more

Aeparmia Engineering PLLC

Austin, TX

Innovative Engineering Solutions for Utility Challenges & Needs

WebsitePhone3 offices13 projects1 leaders5 credentialsFounded 2017

Project: I-35 NEX South Project Electric and Telecom Utility Relocations

Service: Power and Fiber Utilities EngineeringService: Subsurface Utilities Engineering (SUE)Service: Public and Private Utilities Coordination and Conflict AnalysisIndustry: CommercialIndustry: ResidentialType: Civil Engineering+38 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

Amentum

Chantilly, VA

Advancing the Future Together

Website1 office3 projects1 credentialsSize Estimate: 1,000+ employeesUpdated Jun 2026

Project: Fukushima Cleanup

Service: Mission ModernizationService: Space SystemsService: Digital TransformationIndustry: DefenseIndustry: AerospaceType: Aerospace Engineering+20 more

Ameresco, Inc.

Leading the global energy transition as a full-service energy partner

WebsiteUpdated Jun 2026

Service detail: Energy Efficiency

Service: Energy EfficiencyService: Indoor Lighting & ControlsService: LED Street & Area LightingIndustry: FederalIndustry: GovernmentType: Power & Utility Engineering+40 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

Appendix R Solutions Inc

Hanover, VA

Providing unique multi-disciplinary engineering solutions

WebsitePhone1 office1 projectsFounded 2000Updated Jun 2026

Project: Post-Fukushima Safe Shutdown and Restart Support

Service: Fire Protection EngineeringService: Fire ModelingService: Classical Fire ProtectionIndustry: NuclearIndustry: Power GenerationType: Fire Protection Engineering+25 more

Archon Engineering, PC

Columbia, MO

Engineering Design + Analysis

WebsitePhone1 office3 credentialsFounded 1992Updated Jun 2026

Service detail: Structural Analysis and Design

Service: Structural Analysis and DesignService: Building and Foundation DesignService: Finite Element Analysis (FEA)Industry: Power GenerationIndustry: NuclearType: Civil Engineering+17 more

Arnold & Associates, Inc.

Roswell, GA

Arnold & Associates, Inc. (A&A) is an Operations and Maintenance (O&M) engineering consulting practice founded in 1988 and based in Roswell, Georgia. It provides professional engineering, training, technical O&M consulting, and staff support services. Its capabilities serve industrial and utility systems, steam and electric power generation, building HVAC systems, and similar facility operations. The practice specializes in the efficient management and utilization of personnel, energy, rotating equipment, boilers, steam and combustion turbines, and diesel-engine-driven components. It also offers technical recruiting, energy conservation surveys, and professional power engineering licensing preparation seminars.

Website1 office2 credentialsFounded 1988Updated Jun 2026

Service detail: Operations & Maintenance Consulting

Service: Operations & Maintenance ConsultingService: Procedures Review and UpdatingService: O&M Personnel EvaluationsIndustry: Power GenerationIndustry: Oil & GasType: Mechanical Engineering+29 more

Arup

We shape a better world

Website19 projects6 leadersUpdated Jun 2026

Project: LGA Delta Terminal C

Service: TransportationService: Airport Design and InfrastructureService: Airport PlanningIndustry: Arts & CultureIndustry: AviationType: Architecture & Engineering+47 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

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

Astute Engineering, PLLC

Vienna, VA

Astute Engineering, PLLC delivers comprehensive electrical engineering, power distribution design, system studies, and field services. Operating across Virginia, Maryland, Washington DC, and surrounding regions, the practice supports projects from initial feasibility and schematic phases through final installation, testing, commissioning, and commercial operations.

Website1 office1 projects3 leadersUpdated Jun 2026

Project: DC Water Blue Plains Wastewater Treatment Plant

Service: Electrical EngineeringService: Schematic and Concept DesignService: Installation and Erection SupportIndustry: TransportationIndustry: RailType: Electrical Engineering+18 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