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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Infrastructure Consulting & Engineering, LLC

West Columbia, SC

A Full Service Transportation Consulting and Design Firm

WebsitePhone15 offices6 projects5 credentialsFounded 2005Size Estimate: 500-1,000 employees

Project: NC-540 (Triangle Expressway SE Extension)

Service: Roadway and Highway DesignService: Roadway widening and extensionService: Major interchange and intersection designIndustry: TransportationIndustry: GovernmentType: Civil Engineering+85 more

Innovative People and Technology Corporation

California, MD

Common sense solutions

Website1 office2 projects1 leadersUpdated Jun 2026

Project: NAWCAD WOLF CI&IDS Division Support

Service: Systems Engineering and MBSEService: Model-Based Systems EngineeringService: ATC&LS Engineering Activity SupportIndustry: DefenseIndustry: AviationType: Defense Engineering+18 more

InteliOPT, Inc.

Superior Quality and Value Telecom & IT Services Company

WebsiteFounded 2008Updated Jun 2026

Service detail: Distributed Antenna Systems (DAS) & Small Cell Solutions

Service: Distributed Antenna Systems (DAS) & Small Cell SolutionsService: i-DAS & o-DAS Site SurveysService: System Design & IntegrationIndustry: TelecommunicationsIndustry: Public SafetyType: Telecom / RF Engineering+29 more

Intelligent Transportation Systems LLC

Prairieville, LA

Engineering a Safer and Better World.

WebsitePhone1 office4 projects1 credentialsUpdated Jun 2026

Project: Louisiana Adaptive Signal System Implementation

Service: EngineeringService: Traffic & Adaptive Signal EngineeringService: ITS Planning & Systems EngineeringIndustry: TransportationIndustry: InfrastructureType: Electrical Engineering+14 more

JSM & Associates

Apopka, FL

We Keep Airports Moving

WebsitePhone7 offices13 projects7 leadersSize Estimate: 1-25 employeesUpdated Jun 2026

Project: Tampa International Airport - CBIS Recapitalization/Optimization

Service: BHS Design & ConsultationService: Baggage Conveyor Layout PlanningService: Checked Baggage Inspection Security DesignIndustry: AviationIndustry: AirportsType: Aviation Engineering+8 more

KAG Engineering, PLLC

Bayport, NY

Transportation Engineering & Construction Inspection Services

WebsitePhone1 office43 projects1 leadersFounded 2011Size Estimate: 1-9 employees

Project: LGA Design Review & Support Services

Service: Intelligent Transportation Systems DesignService: Travel Time SystemsService: CCTV, VMS, and Roadside DetectionIndustry: TransportationIndustry: Highways & RoadsType: Transportation Engineering+23 more

LJA Program Management LLC

Houston, TX

. Client Focused.

WebsitePhone5 offices3 projects5 credentialsFounded 1972Updated Jun 2026

Project: Ranew's E-Coat Masterplan

Service: Aviation ServicesService: Civil EngineeringService: Public Infrastructure and WorksIndustry: GovernmentIndustry: Land DevelopmentType: Civil Engineering+75 more

LS Technologies, LLC

Washington, DC

Transformation That Moves the Nation. Delivering Airspace Innovation Now.

WebsitePhone1 office3 projects13 leaders2 credentialsFounded 2000

Project: Ryan Airfield Air Traffic Control Tower Upgrade

Service: Engineering ServicesService: Systems EngineeringService: Air Traffic Control EngineeringIndustry: AviationIndustry: AerospaceType: Aviation Engineering+20 more

Live Oak Consultants LLC

North Charleston, SC

HDR | LOC provides full-service engineering and consulting from North Charleston, South Carolina. Disciplines span Civil, Structural, Mechanical, Electrical, Security, and Forensic Engineering, supported by project management and planning advisory services for clients in industrial, government, healthcare, commercial, and educational sectors.

WebsitePhone1 office22 projects1 leadersUpdated Jun 2026

Project: Solvay USA - Chemical Facility Security

Service: Civil EngineeringService: Site DevelopmentService: Utilities DesignIndustry: AutomotiveIndustry: CommercialType: Civil Engineering+39 more

MJ Technical Solutions, LLC

Exceptional Service With Honesty And Integrity

Website4 leadersFounded 2005Updated Jun 2026

Service detail: Aviation Technology

Service: Aviation TechnologyService: CommunicationsService: Aeronautical Fixed Telecommunication NetworkIndustry: AviationIndustry: AirportsType: Aviation Engineering+68 more

Magill Inc.

Nashville, TN

We engineer brilliant development solutions that are built to last.

Website1 office5 projects1 leadersUpdated Jun 2026

Project: JW Marriott

Service: Site Planning and Civil EngineeringService: Due Diligence, Zoning Research, and Feasibility StudiesService: Preliminary / Conceptual DesignIndustry: CommercialIndustry: Mixed-UseType: Civil Engineering+23 more

Meridian Consulting Engineers

Orlando, FL

Honesty Integrity Respect

WebsitePhone1 office5 projects4 leaders2 credentialsFounded 1999

Project: Canal Corkran

Service: Commercial Development EngineeringService: Educational and School FacilitiesService: Water Parks and Recreation SpacesIndustry: Land DevelopmentIndustry: AirportsType: Civil Engineering+17 more

Moore Engineering, Inc.

Valley City, ND

Improving lives by building strong communities.

WebsitePhone11 offices6 projects4 leaders3 credentialsFounded 1960

Project: Water Tower Design - Verndale, MN

Service: Civil EngineeringService: Capital Improvement PlansService: Funding and Grant AssistanceIndustry: GovernmentIndustry: Highways & RoadsType: Civil Engineering+51 more

Nelson + Pope

Melville, NY

Thoughtful from the ground up.

WebsitePhone1 office9 projects10 leaders10 credentialsFounded 1954

Project: Sutton Landing

Service: Civil & Site EngineeringService: Site Planning & FeasibilityService: Stormwater Management & Drainage DesignIndustry: CommercialIndustry: RetailType: Architecture & Engineering+66 more

Nitsch Engineering

Boston, MA

Building Better Communities With You

WebsitePhone5 offices5 projects5 leaders3 credentials3 publications

Project: Kennedy Street Green Infrastructure

Service: Civil EngineeringService: Due diligence and permitting strategyService: Site development advisory servicesIndustry: EducationIndustry: AirportsType: Civil Engineering+88 more

Overlook Systems Technologies, Inc.

Vienna, VA

Committed to Excellence

Website3 offices3 projectsFounded 1987Updated Jun 2026

Project: GPS Control Segment Sustainment

Service: GPS and PNT Engineering SupportService: GPS ModernizationService: PNT Architectures and RoadmapsIndustry: DefenseIndustry: GovernmentType: Defense Engineering+23 more

Pennoni

Philadelphia, PA

Partners for What's Possible

Website1 office5 projects6 leaders6 credentials2 publicationsFounded 1966

Project: I-95 Central Access Philadelphia (CAP)

Service: Civil/SiteService: Site Planning & Land DevelopmentService: Permitting & EntitlementIndustry: CommercialIndustry: RetailType: Civil Engineering+136 more

Pond

Pioneering Innovation Since 1965

Website8 projects3 leaders2 credentialsFounded 1965Size Estimate: 850+ employeesUpdated Jun 2026

Project: Gary/Chicago Airport Air Cargo Development Services

Service: EngineeringService: Civil EngineeringService: Structural EngineeringIndustry: AviationIndustry: DefenseType: Architecture & Engineering+101 more

Prairie Engineering, P.C.

Minot, ND

The Premier Mechanical & Electrical Design Engineering Firm in North Dakota

WebsitePhone2 offices2 credentialsFounded 1983Size Estimate: 20-29 employeesUpdated Jun 2026

Service detail: Mechanical Engineering

Service: Mechanical EngineeringService: HVAC DesignService: Plumbing SystemsIndustry: EducationIndustry: GovernmentType: MEP+28 more

Prein & Newhof

We See Farther

Website3 projects2 leadersFounded 1970Updated Jun 2026

Project: Bronson's Underground Revival: Tackling Aging Infrastructure Challenges

Service: Water and Wastewater EngineeringService: Water Supply EngineeringService: Wastewater EngineeringIndustry: Water SupplyIndustry: WastewaterType: Civil Engineering+35 more

RDM International

Sterling, VA

Engineering. Technology. Research.

WebsitePhone5 offices3 projects3 leaders24 credentialsFounded 1987

Project: Kansas City International Airport Reconstruction

Service: Pavement Evaluation & DesignService: Nondestructive TestingService: Geotechnical EvaluationIndustry: AirportsIndustry: AviationType: Civil Engineering+38 more

Refai International Group

Denver, CO

Innovative Project Management & Engineering Solutions for the Modern World

WebsitePhone1 office8 projectsFounded 1991Updated Jun 2026

Project: COTA 1600 McKinley Avenue Renovation, Phase 3C

Service: Program / Project ManagementService: Large-Scale & Complex Project ManagementService: Turnaround of Non-Performing ProjectsIndustry: AviationIndustry: AirportsType: Civil Engineering+48 more

Regulus Group, LLC

Woodstock, VA

Engineering the skies.

WebsitePhone4 offices10 leadersFounded 2002Size Estimate: 200 employeesUpdated Jun 2026

Service detail: Systems Engineering

Service: Systems EngineeringService: Surveillance SystemsService: Risk and Safety AssessmentIndustry: AviationIndustry: FederalType: Aviation Engineering+8 more

Rich & Associates, Inc.

The Nation's Foremost Parking Consultants

Website11 projects9 leadersFounded 1963Updated Jun 2026

Project: Old Town Deck

Service: Architecture & EngineeringService: Architectural DesignService: Structural EngineeringIndustry: ParkingIndustry: EducationType: Architecture & Engineering+18 more