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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154 Tech LLC

Santa Barbara, CA

Advanced systems engineering, geospatial intelligence, and end-to-end program lifecycle support

WebsitePhone1 office2 credentialsUpdated Jun 2026

Service detail: Technical Program Management

Service: Technical Program ManagementService: End-to-End Program ManagementService: Risk ManagementIndustry: DefenseIndustry: FederalType: Defense Engineering+28 more

303rd Engineering Group, LLC

St. Louis, MO

Successful Partnerships, Successful Projects

WebsitePhone1 office5 projects1 leaders1 credentialsFounded 2005

Project: Airmen's Dormitories, Scott Air Force Base

Service: Electrical EngineeringService: Fire Alarm SystemsService: Energy ConservationIndustry: GovernmentIndustry: FederalType: MEP+18 more

4D Tech Solutions, LLC

Fairmont, WV

Mission-Driven Design and Development

WebsitePhone1 office5 projects5 leadersFounded 2013Updated Jun 2026

Project: RedTail LiDAR System

Service: Technology DevelopmentService: MEMS-Mirror LiDAR SystemsService: Innovative Sensor SolutionsIndustry: DefenseIndustry: AerospaceType: Aerospace Engineering+19 more

A. N. Watt Consulting Engineers, LLC

Orange Park, FL

Expertise You Can Trust

WebsitePhone1 office1 leaders6 credentials1 publicationsFounded 2015

Service detail: Mechanical, Plumbing & Fire Protection Engineering

Service: Mechanical, Plumbing & Fire Protection EngineeringService: HVAC system designService: Plumbing system designIndustry: DefenseIndustry: Intelligence & National SecurityType: Fire Protection Engineering+26 more

A1 Consulting Group, Inc.

Raleigh-Durham, NC

Leaders in Design, Construction, and Environmental Services

WebsitePhone1 office8 projects1 leaders5 credentialsFounded 1971

Project: RDU Airport Terminal 2 Expansion

Service: Engineering and Design ServicesService: Geotechnical and Geological EngineeringService: Civil and Site EngineeringIndustry: AirportsIndustry: CommercialType: Civil Engineering+41 more

ADC Engineering

Hanahan, SC

ADC's Track Record Speaks for Itself

WebsitePhone3 offices17 projectsUpdated Jun 2026

Project: CHS Taxiways Repair

Service: Civil EngineeringService: Site PlanningService: Site Selection and Property Data ReportIndustry: AviationIndustry: CommercialType: Aviation Engineering+66 more

ADV-SOC, Inc.

San Diego, CA

Mission-Driven.

WebsitePhone1 office9 projects2 leadersFounded 2012Updated Jun 2026

Project: Naval Air Station North Island Soil Investigation

Service: Environmental ServicesService: Phase I and Phase II Environmental Site AssessmentsService: Underground Storage Tank Assessment and ClosureIndustry: FederalIndustry: DefenseType: Architecture & Engineering+39 more

AES Group, Inc.

Parker, CO

Providing Engineering and Architecture Services Since 2002

WebsitePhone1 office4 projects5 leaders20 credentialsFounded 1988

Project: Pikes Peak National Cemetery Master Plan & Design

Service: Civil EngineeringService: Site DesignService: GradingIndustry: GovernmentIndustry: FederalType: Architecture & Engineering+38 more

ALPHA Survey Group, LLC

Middleboro, MA

Accuracy | Experience | Quality

WebsitePhone1 office1 leaders7 credentialsFounded 1990Updated Jun 2026

Service detail: Land Surveying

Service: Land SurveyingService: Property and Topographic SurveysService: ALTA/NSPS Land Title SurveysIndustry: TransportationIndustry: AviationType: Land Surveying+10 more

AME Consulting Engineers

Charlotte, NC

Professional Consulting Engineers

WebsitePhone1 office3 leaders8 credentialsFounded 2006Size Estimate: 10-49 employees

Service detail: Mechanical, Electrical, and Plumbing (MEP) Design

Service: Mechanical, Electrical, and Plumbing (MEP) DesignService: Central Energy Plants (CEP)Service: Medium Voltage Electrical DistributionIndustry: FederalIndustry: DefenseType: MEP+36 more

ASG Solutions Corporation

San Diego, CA

ASG Solutions Corporation is a San Diego-based professional services provider supporting critical federal and military missions globally. It specializes in delivering tailored solutions across engineering, construction management, environmental services, information technology, and defense logistics.

WebsitePhone1 office10 projects1 leadersFounded 2005Updated Jun 2026

Project: Technical Support Services for NAVFAC SE DCBL/DC 4

Service: Engineering ServicesService: Electrical EngineeringService: Engineering TechniciansIndustry: DefenseIndustry: FederalType: Defense Engineering+23 more

ATALA ECR, Inc.

El Cajon, CA

Staffing - Construction - Remediation

WebsitePhone1 office1 credentialsFounded 2013Updated Jun 2026

Service detail: Project Staffing

Service: Project StaffingService: Construction SuperintendentsService: Site Safety and Health OfficersIndustry: FederalIndustry: DefenseType: Environmental Engineering+24 more

AVIAN

Lexington Park, MD

We empower our people to do good and help others with simple solutions.

Website8 offices3 leaders1 credentialsUpdated Jun 2026

Service detail: Test & Evaluation

Service: Test & EvaluationService: Test Program ManagementService: UAS Test FlightIndustry: DefenseIndustry: AerospaceType: Aerospace Engineering+16 more

Abi Engineering Consultants Inc

Santa Ana, CA

Geotechnical, Civil, and Structural Engineering Across California and the Western States

WebsitePhone1 office10 projects2 leadersFounded 2004Updated Jun 2026

Project: LA Metro Gold Line - MSE Wall

Service: Geotechnical EngineeringService: Site Investigation and Subsurface ExplorationService: Foundation Design and Lateral Earth Pressure AnalysisIndustry: CommercialIndustry: IndustrialType: Civil Engineering+39 more

Accolade Technologies LLC

Annapolis Junction, MD

Empowering organizations through technology

Website1 office2 credentialsFounded 2019Updated Jun 2026

Service detail: Software Development

Service: Software DevelopmentService: CybersecurityService: Network Security & AnalysisIndustry: GovernmentIndustry: FederalType: Software Engineering+26 more

Accura Engineering and Consulting Services, Inc.

Atlanta, GA

Providing comprehensive engineering, construction, and construction management services.

WebsitePhone3 offices8 leadersFounded 2003Size Estimate: 120 employeesUpdated Jun 2026

Service detail: Federal Services

Service: Federal ServicesService: Defense Program SupportService: Civilian Agency SupportIndustry: FederalIndustry: DefenseType: Civil Engineering+30 more

Achates Power, Inc.

San Diego, CA

Fundamentally Better Engines

WebsitePhone2 offices4 projects2 credentialsFounded 2004Updated Jun 2026

Project: Ultralow NOx Diesel Heavy-Duty Engine Deployment

Service: Opposed-Piston Engine Technology LicensingService: Engine Design LicensingService: Development and Test ToolsIndustry: AutomotiveIndustry: DefenseType: Mechanical Engineering+14 more

Advance Engineering & Construction

Stone Mountain, GA

Design. Build. Sustain. Deliver.

Website1 officeUpdated Jun 2026

Service detail: Transportation Engineering

Service: Transportation EngineeringService: Construction Engineering & InspectionsService: Environmental & Wastewater EngineeringIndustry: GovernmentIndustry: FederalType: Civil Engineering+21 more

Advanced Automation Corporation

Rome, NY

Confidence in the Future: Emerging Technologies to Support the Warfighter

WebsitePhone1 office3 projects6 leaders3 credentialsSize Estimate: 25-50 employees

Project: Integrated Electronic Data Environment (IEDE) for Plutonium Processing Facility

Service: Systems EngineeringService: Requirements Definition and ManagementService: Conceptual and Preliminary DesignIndustry: AerospaceIndustry: DefenseType: Defense Engineering+30 more

Altus Engineering

Darlington, MD

A History of Proven Performance

WebsitePhone1 office5 projects1 leaders1 credentialsFounded 2003

Project: Army Research Lab Ballistic Modeling and Research

Service: Software Development and IntegrationService: Survivability Analysis SoftwareService: Modeling and Simulation ToolsIndustry: DefenseIndustry: FederalType: Defense Engineering+15 more

Alytic, Inc.

King George, VA

Government Contractor, Seaport-e Prime Contract Holder and Experts on Navy Energy Conservation

WebsitePhone1 office3 leadersFounded 2011Updated Jun 2026

Service detail: Engineering Services and Technical Support

Service: Engineering Services and Technical SupportService: Concept Definition and RefinementService: Research and DevelopmentIndustry: DefenseIndustry: FederalType: Defense Engineering+26 more

Amentum

Chantilly, VA

Advancing the Future Together

Website1 office3 projects1 credentialsSize Estimate: 1,000+ employeesUpdated Jun 2026

Project: Fukushima Cleanup

Service: Mission ModernizationService: Space SystemsService: Digital TransformationIndustry: DefenseIndustry: AerospaceType: Aerospace Engineering+20 more

American Aerospace Engineering LLC

Dallesport, WA

American Aerospace Engineering LLC (AAE) is an aerospace engineering and aircraft development practice founded in 2008 and based in Dallesport, Washington. It specializes in the research, design, development, prototyping, and regulatory certification of fixed-wing Vertical Take-Off and Landing (VTOL) aircraft. The practice holds multiple patents for VTOL key technologies, offering scalable designs ranging from 55 lbs to over 20,000 lbs gross weight for multi-mission commercial and military operations. It also provides aerospace engineering consulting, FAA flight test certification management, and specialized flight test engineering training courses.

Website1 office2 projects1 leaders3 credentialsFounded 2008Updated Jun 2026

Project: Eversor VTOL Aircraft Development

Service: Aerospace EngineeringService: Computational Fluid DynamicsService: Aerodynamic DesignIndustry: AerospaceIndustry: DefenseType: Aerospace Engineering+23 more

American Infrastructure Development, Inc.

Tampa, FL

Innovative Architectural and Engineering Solutions

WebsitePhone7 offices11 projects6 leadersFounded 2009Updated Jun 2026

Project: Henry E. Rohlsen International Airport (STX) - Terminal Improvements, Phase 1

Service: ArchitectureService: Airport Terminals, FBOs, and GA FacilitiesService: Hotels, Administrative Offices, and Public-Use BuildingsIndustry: AviationIndustry: AirportsType: Architecture & Engineering+26 more