Public engineering firm directory

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A2 Efficiency

Santa Rosa, CA

Building performance consulting, from first principles to policy.

WebsitePhone1 officeUpdated Jun 2026

Service detail: MEP Basis of Design & Performance Consulting

Service: MEP Basis of Design & Performance ConsultingService: Early-Stage Energy & Comfort ModelingService: Mechanical System Concept & Basis of DesignIndustry: CommercialIndustry: EducationType: 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

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

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

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

AeroFrohne LLC

The New Standard in Reality Capture & 3D Visualization

WebsiteUpdated Jun 2026

Service detail: Geospatial Mapping & Drone Capture

Service: Geospatial Mapping & Drone CaptureService: RTK/PPK Drone Mapping & Object DetectionService: Orthomosaic, DSM/DTM Surface & Contour ProductionIndustry: InfrastructureIndustry: CommercialType: Land Surveying+37 more

Aerospace Technical Services LLC

Boston, MA

Best-in-Class Data Science Solutions for Aerospace, Energy, and Health Systems

Website4 offices7 projects5 leadersFounded 2015Updated Jun 2026

Project: Optimizing Satellite Constellations: ATS MDP Model Application

Service: Data ScienceService: Machine LearningService: Predictive Asset ManagementIndustry: AerospaceIndustry: SpaceType: Aerospace Engineering+11 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

Alisto Engineering Group, Inc.

Walnut Creek, CA

Alisto Engineering Group is an engineering, environmental, and field services firm founded in 1992 and headquartered in Walnut Creek, California. It provides engineering design, project management, environmental solutions, and specialized field services including gas leak survey, LDAR, and cathodic protection engineering. Alisto serves major utility companies and clients in the oil and gas, water and wastewater, and electric power sectors from headquarters in Northern California with regional operations in Southern California, Texas, and New York.

WebsitePhone1 office3 leadersFounded 1992Updated Jun 2026

Service detail: Engineering Services

Service: Engineering ServicesService: Environmental ServicesService: Field ServicesIndustry: Oil & GasIndustry: Water SupplyType: Civil Engineering+8 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

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

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

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

Applied Engineering Concepts

Pasadena, CA

Applied Engineering Concepts (AEC) is a leading provider of electrical field-testing and power system engineering services with over 30 years of experience. Based in Pasadena, California, AEC delivers acceptance testing, maintenance testing, commissioning and start-up, and power system engineering studies to ensure the safety, reliability, and regulatory compliance of electrical infrastructure.

WebsitePhone1 officeUpdated Jun 2026

Service detail: Acceptance Testing

Service: Acceptance TestingService: Protective relay testingService: Low, medium, and high voltage circuit breaker testingIndustry: Power GenerationIndustry: Electric UtilitiesType: Electrical Engineering+13 more

Applied Geotechnical Engineering & Geologic Consulting LLC

Medford, OR

Applied Geotechnical Engineering & Geologic Consulting LLC (AGEGC) is a geotechnical engineering firm founded in 2005 by Robin L. Warren, P.E., G.E., R.G. and based in Medford, OR. AGEGC specializes in geotechnical investigations for foundation design, retaining walls, slope stability, and seismic studies, and serves clients across Oregon, California, and the Pacific Northwest. Warren brings over 20 years of geotechnical and geologic experience, including forensic engineering, construction observation, and expert testimony for a wide range of public and private clients.

WebsitePhone1 office4 projects1 leaders4 credentialsFounded 2005

Project: Jackson County Bridge Replacements

Service: Geotechnical InvestigationsService: Foundation DesignService: Deep FoundationsIndustry: CommercialIndustry: EducationType: Geotechnical Engineering+21 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 & 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