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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ASI Partners Inc.

Huntsville, AL

Engineering Capability and Talent for What Comes Next

WebsitePhone1 officeUpdated Jun 2026
Service: Systems EngineeringService: Architecture Development and MBSEIndustry: DefenseType: Defense Engineering+22 more

Achates Power, Inc.

San Diego, CA

Fundamentally Better Engines

WebsitePhone2 offices4 projects
Service: Opposed-Piston Engine Technology LicensingService: Engine Design LicensingIndustry: AutomotiveType: Mechanical Engineering+16 more

Amtech Aeronautical Limited

Medicine Hat, AB

Aeronautical Design, Defence R&D, and Industrial Automation

Website1 office5 projects2 credentials
Service: Aeronautical Engineering and CertificationService: Aircraft Modifications and Repairs DesignIndustry: AerospaceType: Aerospace Engineering+21 more

Ansync Inc

El Dorado Hills, CA

Innovation to Implementation

Website1 officeUpdated Jun 2026
Service: R&D Product DesignService: Custom Hardware DevelopmentIndustry: RoboticsType: Electrical Engineering+14 more

Applied Chemical Technology, Inc.

Florence, AL

Applied Chemical Technology (ACT) is a one-stop engineering, research and development, and fabrication firm founded in 1981 and headquartered in Florence, Alabama. ACT specializes in chemical process scale-up, providing integrated engineering, laboratory and pilot plant R&D, and custom equipment fabrication for clients in the chemical, fertilizer, agriculture, and mining industries. Its 84,500-square-foot Florence campus includes office, laboratory, fabrication, and pilot plant facilities, and its ASME VIII Div 1 pressure vessel shop supports design and build of custom reactors and process systems.

WebsitePhone1 office1 credentials
Service: EngineeringService: Process EngineeringIndustry: ChemicalsType: Chemical Engineering+23 more

Applied Science & Technologies, Inc.

Inman, SC

Partnership built on proof. Not promises.

WebsitePhone1 office2 projects
Service: Joint C2 and Tactical Data LinksService: Command-and-Control Architecture DesignIndustry: DefenseType: Defense Engineering+46 more

Armant LLC

Data-driven aerospace engineering modeling, simulation, and testing services.

Website5 leadersSize Estimate: 1-9 employeesUpdated Jun 2026
Service: Modeling and SimulationService: Multi-Physics SimulationIndustry: AerospaceType: Aerospace Engineering+29 more

BCP Engineers & Consultants

Metairie, LA

Bridging the Gap Between Design and Operations

WebsitePhone1 office12 leaders
Service: Engineering & Project ManagementService: Engineering ConsultingIndustry: NuclearType: Power & Utility Engineering+27 more

Berkeley Marine Robotics Inc.

Venture Studio for University R&D in Maritime

WebsiteUpdated Jun 2026
Service: Subsea Swarm ControlService: Laser-Optical CommunicationIndustry: DefenseType: Marine Engineering+4 more

Bridgers & Paxton Consulting Engineers, Inc.

Albuquerque, NM

We make buildings come to life

WebsitePhone3 offices3 projects
Service: Mechanical EngineeringService: Heating, Ventilating, and Air Conditioning (HVAC)Industry: GovernmentType: MEP+47 more

Casey Corp Defense LLC

Tulsa, OK

Mission Critical UxS Integration

WebsitePhone1 office4 projects
Service: RF & Telemetry IntegrationService: UxS Advanced Telemetry & RF IntegrationIndustry: DefenseType: Defense Engineering+18 more

Compass Systems, Inc.

Lexington Park, MD

American Precision for Mission-Ready Technologies

WebsitePhone10 offices4 leaders
Service: Research and DevelopmentService: AI-Enabled Decision SupportIndustry: DefenseType: Defense Engineering+29 more

Cybioms Corporation

Transforming aerospace systems and services with innovative AI and automation solutions.

Website5 projectsSize Estimate: 1-25 employeesUpdated Jun 2026
Service: Aerospace EngineeringService: Aerospace system designIndustry: AerospaceType: Aerospace Engineering+46 more

Czero

Making Energy Cleaner

Website7 projects1 credentialsUpdated Jun 2026
Service: Mechanical DesignService: 3D CAD and Solid ModelingIndustry: Power GenerationType: Mechanical Engineering+26 more

DEON-INC Engineering Solutions

Palm Harbor, FL

DEON-INC Engineering Solutions is a multi-disciplinary technology practice specializing in product design, analysis, and manufacturing support. It delivers end-to-end solutions across electronic and electrical design, PCB layout engineering, FPGA and ASIC development, software engineering, mechanical engineering, finite element analysis, and FAA certification. The practice serves commercial, industrial, defense, and aerospace clients, offering services from initial concept through low-rate initial production and full production phases.

WebsitePhone2 offices5 projects
Service: Custom Electronic DesignService: Hardware Design and DevelopmentIndustry: AerospaceType: Aerospace Engineering+29 more

Decision Technologies, Inc.

Arlington, VA

Decision Technologies, Inc. is a defense engineering and intelligence services provider headquartered in Arlington, Virginia. Founded in 2003, it delivers systems engineering, program management, in-service engineering, equipment repair, research and development, test and evaluation, and intelligence support to the Department of Defense and federal agencies. It provides specialized support for naval radar and missile programs across multiple directorates of the Program Executive Office Integrated Warfare Systems (PEO IWS), including AEGIS, Above Water Sensors, Surface Ship Weapons, and Ship Self-Defense Systems (SSDS). Additionally, it supports NSWC Crane and NSWC Port Hueneme, alongside strategic and policy programs for the Office of the Undersecretary of Defense for Intelligence (OUSD(I)).

WebsitePhone5 offices2 projects
Service: Systems EngineeringService: Performance & Requirements AnalysisIndustry: DefenseType: Defense Engineering+29 more

Dirks Instruments LLC

Stilwell, KS

Custom Test Equipment and Product Design

WebsitePhone1 office9 projects
Service: Engineering Design ServicesService: Product DevelopmentIndustry: Medical DevicesType: Mechanical Engineering+20 more

Dominion Engineering, Inc.

Reston, VA

Innovative products, expert consulting, and R&D for the next chapter in nuclear energy

WebsitePhone1 office1 projects
Service: Consulting ServicesService: Materials EngineeringIndustry: NuclearType: Materials Engineering+18 more

Dynamic Animation Systems, Inc.

McLean, VA

Training is not practice. It is perfection.

WebsitePhone2 offices5 projects
Service: Modeling and Simulation ServicesService: Systems Engineering and ArchitecturesIndustry: DefenseType: Simulation Engineering+19 more

EPU Engineering

Jacksonville, FL

Railroad Signaling, R&D, and Consulting

Website1 office1 publicationsUpdated Jun 2026
Service: Railroad Signal EngineeringService: Grade CrossingsIndustry: RailType: Electrical Engineering+16 more

Edgesource Corporation

Alexandria, VA

National Security Expertise That Powers Mission Success

WebsitePhone1 office3 projects
Service: Data EngineeringService: Mission & Data Landscape AssessmentIndustry: DefenseType: Defense Engineering+24 more

Electro Standards Laboratories

Cranston, RI

Engineering and manufacturing solutions for data communication, sensing, measurement, and power continuity.

WebsitePhone1 office4 leaders
Service: Contract R&D EngineeringService: R&D Contract Engineering ServicesIndustry: AerospaceType: Electrical Engineering+39 more

Emtech LLC

Centralia, WA

Accelerate your robotics and automation program from R&D to reliable live operations

WebsitePhone1 officeUpdated Jun 2026
Service: Systems Integration and Hardware ArchitectureService: End-of-Arm Tooling and Mechanical EngineeringIndustry: RoboticsType: Automation & Controls+19 more

Epsilon Systems Solutions, Inc.

San Diego, CA

Epsilon Systems Solutions, Inc. is a defense engineering and technical services provider headquartered in San Diego, California, with facilities in Portsmouth, Virginia, Mayport, Florida, and Pearl Harbor, Hawaii. Epsilon Systems provides marine engineering and ship repair for all classes of U.S. Navy vessels, C5ISR systems engineering and intelligence support, manufacturing of advanced military and commercial products, and technical services including geospatial analysis, environmental compliance, and simulation training. Operating over 125,000 square feet of repair, modernization, and manufacturing facilities near major U.S. Navy homeports, Epsilon Systems holds SUBSAFE certification on all classes of submarines and serves the U.S. Navy, NAVAIR, NAVSEA, and the broader national security community.

Website5 offices12 credentialsUpdated Jun 2026
Service: Navy Ship Repair and ModernizationService: SUBSAFE Submarine Modernization and RepairIndustry: DefenseType: Defense Engineering+32 more