Public engineering firm directory

Find engineering consulting firms by capability and location.

Search engineering firm profiles built for buyers who need a shortlist, not a sales pitch.

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ANS

Scotch Plains, NJ

Engineering with integrity & purpose.

WebsitePhone1 office7 projects12 leadersSize Estimate: 100-300 employeesUpdated Jun 2026

Project: The Virginia Vanguard

Service: Civil, Site & Land DevelopmentService: Site Development & PermittingService: Regulatory Coordination & RepresentationIndustry: Renewable EnergyIndustry: SolarType: Civil Engineering+57 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

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

BAITCO LLC

Washington, DC

Pioneering the Future of Energy

WebsitePhone2 offices2 leadersFounded 2017Updated Jun 2026

Service detail: Power Optimization Solutions

Service: Power Optimization SolutionsService: EV Super ChargersService: BESS SolutionsIndustry: Renewable EnergyIndustry: Energy StorageType: Power & Utility Engineering+5 more

CH4 Systems

Sustainable Engineering Solutions

WebsiteUpdated Jun 2026

Service detail: EPC Services

Service: EPC ServicesService: Engineering & FeasibilityService: Procurement & LogisticsIndustry: Oil & GasIndustry: Renewable EnergyType: EPC+15 more

Civil Renewables, Inc.

Thornton, CO

Build on a Solid Foundation!

WebsitePhone1 office2 leaders1 credentials5 publicationsSize Estimate: 1-10 employees

Service detail: Geotechnical Consulting

Service: Geotechnical ConsultingService: Desktop StudiesService: Preliminary Geotechnical InvestigationsIndustry: Renewable EnergyIndustry: WindType: Civil Engineering+30 more

EVS, Inc.

Eden Prairie, MN

Changing the Way the World Produces Power.

WebsitePhone1 office6 projects7 leadersFounded 1979Updated Jun 2026

Project: Noble Solar

Service: Civil EngineeringService: Solar Site Design & GradingService: Water Resources EngineeringIndustry: SolarIndustry: Energy StorageType: Civil Engineering+48 more

Elevate Building Commissioning LLC

Portland, OR

Building commissioning by experienced professional engineers

WebsitePhone1 office1 projects7 leaders4 credentialsSize Estimate: 1-9 employees

Project: Molalla Police Facility

Service: New Construction CommissioningService: Design Phase SupportService: Construction Phase CoordinationIndustry: CommercialIndustry: EducationType: MEP+28 more

Franc Engineering

Morrison, CO

Senior engineering judgment for regulated industrial projects

WebsitePhone1 office2 credentialsUpdated Jun 2026

Service detail: Process & Facility Engineering

Service: Process & Facility EngineeringService: Heat and Material BalancesService: Process Flow Diagrams (PFDs) and P&IDsIndustry: IndustrialIndustry: Oil & GasType: Process Engineering+39 more

Green Dade, Inc.

Miami, FL

Powering Innovation, Engineering Perfection

WebsitePhone1 office6 projects1 credentialsUpdated Jun 2026

Project: MDWASD - Pump Station Design and Rehabilitation

Service: Electrical Infrastructure DesignService: Design & ConsultationService: Installation & CommissioningIndustry: Water SupplyIndustry: WastewaterType: Electrical Engineering+19 more

J. Smith & T. Muli, Inc.

San Juan Capistrano, CA

Experience engineers Excellence.

WebsitePhone1 office6 projects2 leadersUpdated Jun 2026

Project: Orange County Stream Gage Calibration Study

Service: Stormwater & Flood ControlService: Stormwater Management & PermittingService: Floodplain ManagementIndustry: Stormwater & Flood ControlIndustry: Water ResourcesType: Civil Engineering+21 more

Knobelsdorff

Goodhue, MN

Industrial Electrical, Automation & Solar Contractor

WebsitePhone3 offices1 credentialsUpdated Jun 2026

Service detail: Automation

Service: AutomationService: PLC and Controls IntegrationService: MES / IoT / ERP IntegrationIndustry: Food & BeverageIndustry: ManufacturingType: Electrical Engineering+17 more

Latitude Energy Partners LLC

Independent Energy Consulting

Website2 leadersUpdated Jun 2026

Service detail: Energy Consulting & Assessments

Service: Energy Consulting & AssessmentsService: Energy Consumption Baseline AssessmentService: Energy Solutions Feasibility AssessmentIndustry: CommercialIndustry: ResidentialType: Owner's Engineer+12 more

Martin Data Solutions LLC

York, PA

Engineering the New Standard.

WebsitePhone1 office12 projectsUpdated Jun 2026

Project: Reagan National Airport - New Security Checkpoints

Service: Mechanical EngineeringService: Facility Evaluations and AssessmentsService: Building Energy ModelingIndustry: GovernmentIndustry: DefenseType: MEP+54 more

NEI Electric Power Engineering, Inc.

Lakewood, CO

Engineering a Legacy of Expertise

WebsitePhone1 office23 leaders5 publicationsFounded 1982Size Estimate: 100-250 employees

Service detail: Substation Design and Engineering

Service: Substation Design and EngineeringService: Utility SubstationsService: Renewable SubstationsIndustry: Electric UtilitiesIndustry: Renewable EnergyType: Automation & Controls+36 more

P. Engineering PLLC

Buffalo, NY

P. Engineering PLLC, also operating as P. Max Engineering, is an engineering and construction practice providing professional engineering, pre-construction, and selective construction services. Headquartered in Buffalo, New York, with additional locations in New York City and San Antonio, Texas, it delivers design-build and turnkey project capabilities. The practice serves public, federal, municipal, and private clients on commissions ranging from minor installations to complex infrastructure upgrades across sectors including power and energy, facilities, education, and sports lighting.

WebsitePhone4 offices9 projects17 credentialsSize Estimate: 1-50 employeesUpdated Jun 2026

Project: SUNY Fredonia - Emergency Power & UPS Upgrades

Service: Buildings / Facilities EngineeringService: Electrical Systems EngineeringService: Mechanical & HVAC DesignIndustry: GovernmentIndustry: FederalType: MEP+43 more

Paul G Marshall International Inc

San Diego, CA

Systems Engineering Services That Deliver Success

WebsitePhone1 office1 projects1 leadersUpdated Jun 2026

Project: Naval Integrated Tactical Environmental System-Next Generation (NITES-Next) Support

Service: Systems Engineering & Technical Acquisition SupportService: Model-Based Systems Engineering (MBSE)Service: Requirements Development and AnalysisIndustry: DefenseIndustry: Renewable EnergyType: Defense Engineering+5 more

Power Infrastructure Vital Engineering, Inc.

Conquering Power Challenges, Solutions Driven Results

WebsiteUpdated Jun 2026

Service detail: Power Delivery Engineering

Service: Power Delivery EngineeringService: Substation Design & EngineeringService: Distribution Design & EngineeringIndustry: Electric UtilitiesIndustry: Power Transmission & DistributionType: Power & Utility Engineering+28 more

R.G. Vanderweil Engineers, LLP

Boston, MA

Engineering Excellence

Website9 offices5 projects5 leadersSize Estimate: 500 employeesUpdated Jun 2026

Project: Massachusetts Institute of Technology, Central Plant Upgrade

Service: MEP/FP EngineeringService: Mechanical EngineeringService: Electrical EngineeringIndustry: HealthcareIndustry: EducationType: MEP+25 more

RJS Engineering

Denver, CO

Electrical engineering for EV charging, renewable energy, and arc flash safety

WebsitePhone1 office2 leaders1 credentialsUpdated Jun 2026

Service detail: Arc Flash Risk Assessment

Service: Arc Flash Risk AssessmentService: Arc Flash Hazard AnalysisService: NFPA 70E Arc Flash LabelingIndustry: Renewable EnergyIndustry: SolarType: Electrical Engineering+55 more

Sparc Fire Protection Engineering, LLC

New York, NY

Fire protection engineers who speak code.

WebsitePhone1 office11 projects1 credentials4 publicationsSize Estimate: 5-25 employees

Project: Alexandria Real Estate West Tower Fire Alarm Approvals

Service: Building & Fire Code ConsultingService: Property condition assessments and due diligenceService: Egress and life safety drawing reviewIndustry: CommercialIndustry: Mixed-UseType: Fire Protection Engineering+45 more

TERAWATT Engineering

St. Louis, MO

Fueling a Trillion Watts Ahead

WebsitePhone1 officeUpdated Jun 2026

Service detail: Substation Engineering

Service: Substation EngineeringService: Physical DesignService: Protection and Controls (P&C) DesignIndustry: Electric UtilitiesIndustry: Power Transmission & DistributionType: Power & Utility Engineering+13 more

Terravanta, Inc.

Long Beach, CA

Bringing expertise in the Infrastructure, Utility, Energy and Transportation sectors

WebsitePhone3 offices6 projects7 leaders2 credentialsUpdated Jun 2026

Project: Generation Strategy Division Catalina Island & Big Creek

Service: Project & Construction ManagementService: Project ControlsService: Program ManagementIndustry: InfrastructureIndustry: UtilitiesType: Civil Engineering+13 more

Ulteig Engineers, Inc.

Creating Innovative Infrastructure Solutions

Website8 projects2 leadersFounded 1944Updated Jun 2026

Project: TxDOT FM 159 Roadway Realignment

Service: Power EngineeringService: Substation Engineering and DesignService: Transmission Engineering and DesignIndustry: Power GenerationIndustry: Power Transmission & DistributionType: Civil Engineering+53 more