Public engineering firm directory

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1200 Architectural Engineers PLLC

Alexandria, VA

Illuminating Structure and New Uses.

WebsitePhone1 officeUpdated Jun 2026

Service detail: Structural and Architectural Engineering

Service: Structural and Architectural EngineeringService: Historic Preservation EngineeringService: New Construction EngineeringIndustry: ResidentialIndustry: Historic PreservationType: Structural Engineering+5 more

ADDX Corporation

Alexandria, VA

Tenacious by Nature

WebsitePhone1 officeUpdated Jun 2026

Service detail: Engineering Readiness and Lifecycle Support

Service: Engineering Readiness and Lifecycle SupportService: Digital Engineering LaunchpadService: Engineering Readiness ReviewsIndustry: DefenseIndustry: GovernmentType: Defense Engineering+23 more

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

Awen Solutions Group LLC

Alexandria, VA

Planning, Architecture, and Engineering for America's Veteran Healthcare System

Website1 office13 projects11 leadersFounded 2018Size Estimate: 60+ employeesUpdated Jun 2026

Project: Boise Dental Clinic

Service: Strategic & Capital Asset PlanningService: Facility Master PlanningService: Capital Investment PlanningIndustry: HealthcareIndustry: FederalType: Architecture & Engineering+13 more

BAI, Inc.

Alexandria, VA

Meeting Client Challenges with Vision and Innovation

WebsitePhone1 officeFounded 1999Updated Jun 2026

Service detail: Defense Industrial Base Support

Service: Defense Industrial Base SupportService: Program Management SupportService: Administrative and Advisory ServicesIndustry: DefenseIndustry: FederalType: Software Engineering+30 more

DCS Corporation

Alexandria, VA

Engineering, programmatic, and technical support services for national security missions.

WebsitePhone1 office3 projects8 leaders1 credentialsFounded 1977

Project: Air Force Life Cycle Management Center Support

Service: Artificial Intelligence and Machine LearningService: Deep Learning ApplicationsService: Autonomy for Air Combat MissionsIndustry: DefenseIndustry: Intelligence & National SecurityType: Defense Engineering+19 more

Dav-Lear Systems, Inc.

Diamond Bar, CA

Dav-Lear Systems, Inc. provides information technology, telecommunications, product engineering, systems engineering, and administrative support services. Founded in 1992 and headquartered in Diamond Bar, California, it serves federal, state, and local government agencies, defense contractors, and Fortune 500 corporations, with key clients including Northrop Grumman, Lockheed Martin, Raytheon, and NASA's Jet Propulsion Laboratory.

Website4 offices4 projectsFounded 1992Updated Jun 2026

Project: Desktop Network Support

Service: Software EngineeringService: Software Development and ManagementService: Software Estimating and CostingIndustry: DefenseIndustry: FederalType: Software Engineering+31 more

Edgesource Corporation

Alexandria, VA

National Security Expertise That Powers Mission Success

WebsitePhone1 office3 projects4 leaders5 credentialsUpdated Jun 2026

Project: Detection Gap Integration

Service: Data EngineeringService: Mission & Data Landscape AssessmentService: Architecture, Integration & Pipeline DevelopmentIndustry: DefenseIndustry: Intelligence & National SecurityType: Defense Engineering+22 more

Endesco, Inc.

Rockville, MD

Endesco, Inc. is a multi-discipline civil engineering design, consulting, and construction management firm founded in 1997 and headquartered in Rockville, Maryland. It specializes in water resources, transportation planning and traffic engineering, roadway and lighting design, environmental studies, GIS, and project and construction management, primarily serving state DOTs, transit authorities, counties, cities, and federal agencies across the Washington, DC/Baltimore metro region and beyond.

WebsitePhone2 offices6 projects9 credentialsFounded 1997Size Estimate: 5-25 employees

Project: Transform I-66 Outside the Beltway (Express Lanes), Northern Virginia

Service: Water ResourcesService: Stormwater ManagementService: Hydraulics and HydrologyIndustry: GovernmentIndustry: TransportationType: Civil Engineering+52 more

Engenium Group LLC

Washington, DC

Delivering innovative engineering solutions through collaboration and a people-first approach.

Website3 offices7 projects9 leaders3 publicationsSize Estimate: 41 employeesUpdated Jun 2026

Project: Waterfront Station at 1100 4th Street

Service: Mechanical Engineering & DesignService: HVAC and Climate Control DesignService: Ground Source Heating & CoolingIndustry: CommercialIndustry: GovernmentType: MEP+20 more

Gul Engineering PLLC

Alexandria, VA

Engineering Solutions for a Resilient Future

WebsitePhone1 office4 leaders4 credentialsUpdated Jun 2026

Service detail: Construction Management

Service: Construction ManagementService: Construction InspectionService: Quality Assurance & Quality Control (QA/QC)Industry: GovernmentIndustry: FederalType: Civil Engineering+6 more

Guzman & Griffin Technologies, Inc.

Alexandria, VA

Maintaining the safety and efficiency of the National Airspace System

WebsitePhone1 office3 projects4 leadersFounded 1997Size Estimate: 50-199 employees

Project: Surface and Airborne Safety Metrics Automation

Service: Systems & Software EngineeringService: Software Development & Systems IntegrationService: Independent Verification & Validation (IV&V)Industry: AviationIndustry: FederalType: Aviation Engineering+17 more

Hall Group Design Engineering Firm, LLC

Alexandria, VA

Because We Care About People, We Care About Buildings

WebsitePhone1 office3 projects2 leaders3 publicationsUpdated Jun 2026

Project: Clubhouse Renovation

Service: Facility EngineeringService: Facility PlanningService: Engineering StudiesIndustry: CommercialIndustry: ResidentialType: Architecture & Engineering+17 more

Integra Design Group

San Juan, PR

Designed for What's Next

WebsitePhone4 officesUpdated Jun 2026

Service detail: Water and Wastewater Systems

Service: Water and Wastewater SystemsService: Potable Water SystemsService: Wastewater SystemsIndustry: AirportsIndustry: BridgesType: Architecture & Engineering+31 more

KMS Solutions, LLC

Alexandria, VA

Your Success is Our Mission!

WebsitePhone8 offices14 leaders5 credentialsFounded 2005Updated Jun 2026

Service detail: Systems Engineering

Service: Systems EngineeringService: Submarine and Surface Ship Combat & Command Control Systems AnalysisService: Off-Board Sensors and Sonar SystemsIndustry: DefenseIndustry: Intelligence & National SecurityType: Defense Engineering+35 more

Kinetic Metrics LLC

Alexandria, VA

Beyond Automotive Safety

WebsitePhone1 office1 projects2 leaders1 credentialsFounded 2015

Project: National Park Service Signage and Transportation Plan

Service: Automotive Regulatory and SafetyService: NHTSA Safety Compliance Consulting and TrainingService: Part 555 Exemptions and NHTSA InterpretationsIndustry: AutomotiveIndustry: TransportationType: Transportation Engineering+11 more

LR3 Solutions, LLC

Alexandria, VA

Reliable, Resourceful, Results-Driven

WebsitePhone1 office3 projects4 leaders9 credentialsSize Estimate: 2-10 employees

Project: Utility Privatization and Infrastructure Conveyance Support

Service: Technical AnalysisService: Utility System Risk AssessmentService: On-Site Facility InspectionsIndustry: FederalIndustry: GovernmentType: Power & Utility Engineering+20 more

LandDesign, Inc.

Charlotte, NC

Creating Places That Matter

WebsitePhone5 offices8 projectsFounded 1978Size Estimate: 201-500 employeesUpdated Jun 2026

Project: Ballantyne Reimagined

Service: Landscape ArchitectureService: Site Design and PlacemakingService: Urban Landscape and InfrastructureIndustry: Land DevelopmentIndustry: Mixed-UseType: Civil Engineering+22 more

Matteo Ferran Structural Engineers PLLC

Alexandria, VA

Where historic systems and cutting-edge technologies find common ground.

WebsitePhone1 office9 projects8 leadersSize Estimate: 1-10 employeesUpdated Jun 2026

Project: Fallingwater

Service: Structural EngineeringService: Code-based AnalysisService: Structural DesignIndustry: Historic PreservationIndustry: Arts & CultureType: Structural Engineering+12 more

Michael Baker International

Pittsburgh, PA

We Make a Difference

Website18 offices5 projects15 leaders5 credentials4 publicationsFounded 1940

Project: Fika Remote Footbridge Build

Service: Infrastructure EngineeringService: Roadway and Highway DesignService: Bridge Design and InspectionIndustry: TransportationIndustry: Highways & RoadsType: Architecture & Engineering+46 more

Mission Outcomes

Alexandria, VA

Warfighting-focused strategy through execution

Website1 officeUpdated Jun 2026

Service detail: Acquisition Acceleration and Requirements Enablement

Service: Acquisition Acceleration and Requirements EnablementService: Agile and Resilient ContractingService: Acquisition Pathway Design and AccelerationIndustry: DefenseType: Software Engineering+31 more

Mueser Rutledge Consulting Engineers

New York, NY

Built on firm foundations

WebsitePhone3 offices8 projects11 leaders16 credentials5 publications

Project: One World Trade Center

Service: Geotechnical EngineeringService: Subsurface InvestigationsService: Earthquake EngineeringIndustry: BridgesIndustry: CommercialType: Geotechnical Engineering+41 more

NBCG Consulting Group, LLC

Alexandria, VA

Intelligence Behind The Build

WebsitePhone1 office4 credentialsSize Estimate: 1-25 employeesUpdated Jun 2026

Service detail: Design Expertise

Service: Design ExpertiseService: Architectural PlanningService: Structural EngineeringIndustry: FederalIndustry: GovernmentType: Architecture & Engineering+28 more

PCCI, Inc.

Alexandria, VA

Sensible solutions to difficult problems

WebsitePhone1 office10 projectsFounded 1981Updated Jun 2026

Project: San Clemente Island Shore Cable and Hydrophone Array Installation

Service: Multidiscipline EngineeringService: Equipment Packaging for Rapid ResponseService: Heavy Lift Rigging and TransportIndustry: MarineIndustry: DefenseType: Marine Engineering+26 more