Public engineering firm directory

Find engineering consulting firms by capability and location.

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Advanced Technology Systems Company

McLean, VA

We build solutions.

WebsitePhone5 offices3 projects8 leaders2 credentialsUpdated Jun 2026

Project: Georgia Border Surveillance Program

Service: Systems IntegrationService: Security Surveillance SystemsService: Communications SystemsIndustry: DefenseIndustry: FederalType: Defense Engineering+18 more

Airde Elevated Thinking LLC

Egg Harbor Township, NJ

Moving at the Speed of Business

Website1 office5 projects2 leadersFounded 2021Size Estimate: 1-10 employeesUpdated Jun 2026

Project: Cape-Atlantic UAS Test Range

Service: Advanced Air Mobility (AAM) Concepts and SolutionsService: Urban Air Mobility (UAM) / Urban Traffic Management (UTM) / Enhanced Traffic Management (ETM)Service: Cooperative OperationsIndustry: AviationIndustry: FederalType: Aviation Engineering+23 more

ArgenTech Solutions, Inc.

Newmarket, NH

ArgenTech Solutions is a leading integrator and service provider of Uncrewed Aerial Systems (UAS) for military, civil, and commercial initiatives. Founded in 2011, it provides UAS system integration, flight operations, maintenance, and training services primarily to the U.S. Department of Defense and other government and commercial customers.

WebsitePhone1 officeFounded 2011Updated Jun 2026

Service detail: UAS System Integration

Service: UAS System IntegrationService: Flight OperationsService: UAS MaintenanceIndustry: DefenseIndustry: GovernmentType: Aviation Engineering+8 more

Blackout Technologies, Ltd.

The spectrum is contested.

WebsiteSize Estimate: 1-10 employeesUpdated Jun 2026

Service detail: Counter-UAS (C-UAS) Detection

Service: Counter-UAS (C-UAS) DetectionService: Passive RF Direction FindingService: Expeditionary C-UAS DeploymentIndustry: DefenseIndustry: Public SafetyType: Defense Engineering+14 more

C Speed

Persistent Surveillance for a Changing Threat Environment

Website1 credentialsUpdated Jun 2026

Service detail: Integrated Surveillance Solutions

Service: Integrated Surveillance SolutionsService: Ground-Based Radar (GBR)Service: Elevated Surveillance Radar (ESR)Industry: DefenseIndustry: Public SafetyType: Defense Engineering+13 more

CaVU Consulting, Inc.

San Diego, CA

Ceiling and Visibility Unlimited

Website2 officesUpdated Jun 2026

Service detail: Systems Engineering

Service: Systems EngineeringService: Systems Life-Cycle EngineeringService: Balanced Technical SolutionsIndustry: DefenseIndustry: FederalType: Defense Engineering+25 more

Chartis Federal

McLean, VA

Mission-critical solutions for the Federal Government

WebsitePhone1 office3 projects1 leaders9 credentialsSize Estimate: 100-249 employees

Project: DHS Tactical Communications II

Service: Engineering & IntegrationService: Enterprise ArchitectureService: Communications Systems DesignIndustry: FederalIndustry: DefenseType: Defense Engineering+28 more

Cyclone Energy Group

Chicago, IL

High Performance Building Consultants

WebsitePhone2 offices15 projects34 credentials4 publicationsFounded 2012

Project: Chicago O'Hare CONRAC

Service: Commissioning & TestingService: Fundamental CommissioningService: Enhanced CommissioningIndustry: CommercialIndustry: EducationType: Simulation Engineering+34 more

EMCS, Inc.

Milwaukee, WI

Transforming Challenges into Solutions

Website5 officesFounded 1983Updated Jun 2026

Service detail: Transportation Engineering

Service: Transportation EngineeringService: Roadway DesignService: Drainage & Stormwater QualityIndustry: TransportationIndustry: GovernmentType: Civil Engineering+21 more

Engineering Dynamics

Silver Spring, MD

Engineering is a People Problem.

WebsitePhone1 office14 credentialsUpdated Jun 2026

Service detail: Human Factors Engineering

Service: Human Factors EngineeringService: Cognitive EngineeringService: UX ResearchIndustry: DefenseIndustry: FederalType: Defense Engineering+36 more

Fickett Structural Solutions, Inc.

Middleton, WI

Structural Integrity. Engineering Excellence.

WebsitePhone5 offices16 projects6 credentialsUpdated Jun 2026

Project: Baker's Ferry Emergency Bridge Inspection

Service: Structural Inspection ServicesService: Bridge & Culvert InspectionService: Ancillary Structure InspectionIndustry: BridgesIndustry: TransportationType: Structural Engineering+25 more

H3 Dynamics LLC

Paris, TX

Enablers of Long Range H2-Electric Flight

WebsitePhone3 offices2 projects1 leadersUpdated Jun 2026

Project: Airbus UpNext Auxiliary Power Unit Collaboration

Service: Hydrogen and Aerospace Engineering ServicesService: Design, Validation and VerificationService: Qualification, Regulatory and Certification SupportIndustry: AviationIndustry: AerospaceType: Aerospace Engineering+11 more

J4 Aviation LLC

California, MD

Mission critical solutions.

Website1 office1 credentialsFounded 2024Updated Jun 2026

Service detail: Aviation Solutions

Service: Aviation SolutionsService: Persistent Airborne AwarenessService: Communications RelayIndustry: AviationIndustry: DefenseType: Aviation Engineering+10 more

Klein Engineering, PSC

Fairfax, VA

Safe Roads Save Lives

WebsitePhone2 officesFounded 2007Updated Jun 2026

Service detail: Transportation and Traffic Studies

Service: Transportation and Traffic StudiesService: Surface TransportationService: Traffic Engineering StudiesIndustry: TransportationIndustry: Highways & RoadsType: Transportation Engineering+23 more

Mosaic ATM, Inc.

Shaping the Next Era of Air Traffic Management

Website4 projects2 credentialsFounded 2004Updated Jun 2026

Project: Contingency Planning Toolkit for Advanced Air Mobility

Service: Air Traffic Management SystemsService: Flight operations conceptsService: Traffic management conceptsIndustry: AviationIndustry: AerospaceType: Aviation Engineering+20 more

Orange LLC

Consulting for Aviation, Advanced Vehicles, eVTOL, Drone Delivery, and Autonomous Vehicles

Website4 projects7 leadersFounded 2023Size Estimate: 1-25 employeesUpdated Jun 2026

Project: Silicon Valley Aviation Company - 2,000,000+ Flight Hours Accident Free

Service: Aviation SafetyService: Safety Management System (SMS)Service: Safety PolicyIndustry: AviationIndustry: AerospaceType: Aviation Engineering+49 more

PPT Solutions, LLC

Huntsville, AL

Working together for optimum performance

WebsitePhone1 office3 projects1 leaders3 credentialsUpdated Jun 2026

Project: EXPRESS SRD Apache SOAD Airworthiness

Service: Airworthiness and SafetyService: Airworthiness and CertificationService: Software AirworthinessIndustry: DefenseIndustry: GovernmentType: Aviation Engineering+25 more

Phoenix Engineering Technologies

Cerritos, CA

Niche Aerospace Interiors and Systems Engineers

WebsitePhone1 officeFounded 2015Updated Jun 2026

Service detail: Aerospace Engineering

Service: Aerospace EngineeringService: Concept Design and Product DevelopmentService: Detailing, Drafting, and Sustaining EngineeringIndustry: AerospaceIndustry: AutomotiveType: Aerospace Engineering+66 more

Popli Design Group, DPC

Penfield, NY

Popli Design Group (PDG) is an award-winning, multi-disciplinary architectural, engineering, land surveying, and construction inspection practice established in 1982. It serves educational, healthcare, commercial, industrial, and government clients at the federal, state, and local levels across building, transportation, and surveying sectors.

WebsitePhone7 offices4 projects1 credentialsFounded 1982Updated Jun 2026

Project: Buffalo State College Project

Service: ArchitectureService: Mechanical, Electrical, Plumbing and Fire Protection EngineeringService: Energy and CommissioningIndustry: EducationIndustry: HealthcareType: Architecture & Engineering+33 more

Sheladia Associates, Inc.

Rockville, MD

In the Success of Others Lies Our Own.

WebsitePhone1 office7 projects2 credentialsFounded 1974Updated Jun 2026

Project: Bukhara Road Network Improvement Project (BRNIP) Phase 1

Service: Transportation InfrastructureService: Feasibility StudiesService: Construction SupervisionIndustry: TransportationIndustry: Water SupplyType: Civil Engineering+29 more

Specialty Systems, Inc.

Toms River, NJ

Delivering Mission Critical Systems, Services, and Information Security

WebsitePhone1 office3 projects1 leaders4 credentialsUpdated Jun 2026

Project: Capacity Selector Valve Calculator

Service: Software EngineeringService: Requirements and DesignService: Test Planning and ExecutionIndustry: DefenseIndustry: GovernmentType: Software Engineering+24 more

Stahl Sheaffer Engineering, Inc.

Civil & Structural Engineering Solutions

Website2 projects7 leaders2 credentialsFounded 2006Size Estimate: 100-199 employeesUpdated Jun 2026

Project: Golden Mile Continuous Green T Interchange

Service: Bridge and Tunnel EngineeringService: Bridge DesignService: Tunnel Rehabilitation DesignIndustry: AgricultureIndustry: Sports & RecreationType: Civil Engineering+39 more

Systems Planning and Analysis, Inc.

Washington, DC

Objective. Responsive. Trusted.

Website3 offices7 projects2 leaders1 credentialsSize Estimate: 500-1,000 employeesUpdated Jun 2026

Project: Columbia-class SSBN Technology Development

Service: Strategic Analysis and Force DesignService: Force Structure DevelopmentService: Requirements DefinitionIndustry: DefenseIndustry: Intelligence & National SecurityType: Defense Engineering+37 more

UTS Group

Mooresville, IN

Excellence in Energy

WebsitePhone5 offices9 leaders1 credentialsUpdated Jun 2026

Service detail: Construction Services

Service: Construction ServicesService: Directional BoringService: TrenchingIndustry: Electric UtilitiesIndustry: Power Transmission & DistributionType: Civil Engineering+19 more