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.

Filters3

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

Advanced Rotorcraft Technology Inc

Fremont, CA

A Leader in Rotorcraft Simulation

WebsitePhone1 office5 projects21 leadersFounded 1982Size Estimate: 10-49 employees

Project: AVCATT Simulator Model Development

Service: Aircraft Design and AnalysisService: Parametric StudiesService: Performance AnalysisIndustry: AerospaceIndustry: DefenseType: Aerospace Engineering+26 more

E3R Inc

San Diego, CA

Exceptional Employees for Exceptional Results

WebsitePhone1 office4 leaders3 credentialsFounded 2011Size Estimate: 1-25 employees

Service detail: Program Management

Service: Program ManagementService: Cost, schedule, performance, and risk managementService: Acquisition document preparation and complianceIndustry: DefenseIndustry: GovernmentType: Defense Engineering+20 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 detail: Navy Ship Repair and Modernization

Service: Navy Ship Repair and ModernizationService: SUBSAFE Submarine Modernization and RepairService: Alteration Installation Team (AIT) ServicesIndustry: DefenseIndustry: MarineType: Defense Engineering+30 more

GreenDart Incorporated

Long Beach, CA

GreenDart delivers superior program savings to U.S. government mission-critical system development efforts, focusing on environments where risk reduction yields significant program cost savings. The practice provides Test and Evaluation (T&E), Verification and Validation (V&V), Cybersecurity Assessments, Data Analytics, and Systems Engineering and Integration (SE&I) services, operating either as an independent assessment team or embedded directly with development teams. GreenDart holds a GSA Multiple Award Schedule contract vehicle and has delivered advanced engineering services to agencies including DHS Customs and Border Protection, the USAF Space and Missile Systems Center, and the DHS Science and Technology Directorate.

WebsitePhone1 office3 projects1 leaders2 credentialsUpdated Jun 2026

Project: DHS Customs and Border Protection T&E Services

Service: Test and EvaluationService: Developmental Testing and AnalysisService: Operational Phase TestingIndustry: DefenseIndustry: AerospaceType: Defense Engineering+25 more

IW Laboratories Inc.

Port Hueneme, CA

People Powering Technology

WebsitePhone1 office2 projectsUpdated Jun 2026

Project: Systems Engineering and Digital Transformation for NSWC PHD (Contract D9109-S16)

Service: Systems EngineeringService: Test and EvaluationService: Automatic Test Equipment (ATE) SolutionsIndustry: DefenseIndustry: FederalType: Defense Engineering+26 more

Karagozian & Case, Inc.

Pasadena, CA

Science & Engineering for the Most Challenging Problems Since 1945

Website1 office7 projects7 leaders1 publicationsFounded 1945Updated Jun 2026

Project: FEMFRE Version 1.0 Release

Service: Protective DesignService: Blast-Resistant Building DesignService: Force Protection for Critical InfrastructureIndustry: DefenseIndustry: FederalType: Defense Engineering+25 more

Marquee Semiconductor Inc

Milpitas, CA

Semiconductor design services for high performance connectivity

Website7 offices8 leaders6 credentialsFounded 2019Updated Jun 2026

Service detail: Digital Design and SoC Integration

Service: Digital Design and SoC IntegrationService: Network-on-Chip (NoC) SubsystemsService: AI/ML Accelerator DesignIndustry: SemiconductorsIndustry: ElectronicsType: Electrical Engineering+11 more

Northwest Hydraulic Consultants Inc

Seattle, WA

Meeting Water Resource Needs of People and the Environment

Website11 offices14 projectsFounded 1972Size Estimate: 200 employeesUpdated Jun 2026

Project: BC Hydro Hydroclimate Monitoring Network

Service: Water Resources EngineeringService: Hydrology, Climate Change, and Water ManagementService: Flood Hazard Assessment and Risk ManagementIndustry: Water ResourcesIndustry: Water SupplyType: Coastal Engineering+31 more

PCB Automation Inc

Campbell, CA

Empower Your Hardware Success

Website1 office1 leaders3 publicationsUpdated Jun 2026

Service detail: Hardware Design Services

Service: Hardware Design ServicesService: PCB and Package DesignService: SIPI SimulationIndustry: Data CentersIndustry: ElectronicsType: Electrical Engineering+6 more

RAM Laboratories, Inc.

San Diego, CA

Solving Hard Problems Through I3: Interdisciplinary Innovation and Invention

WebsitePhone1 office3 projects2 leaders5 credentialsFounded 1997

Project: Avionics Modeling and Simulation for the Air Force

Service: Advanced AnalyticsService: Artificial IntelligenceService: Modeling and SimulationIndustry: DefenseIndustry: Intelligence & National SecurityType: Defense Engineering+8 more

SC Solutions, Inc.

San Jose, CA

Value Through Innovation

Website3 offices5 projects3 leaders6 credentialsUpdated Jun 2026

Project: Varda Winnebago-1 Re-entry Capsule Development

Service: Control EngineeringService: Model-Based Control SoftwareService: Physics-Based Equipment ModelingIndustry: SemiconductorsIndustry: AerospaceType: Automation & Controls+21 more

SYMVIONICS, Inc.

Arcadia, CA

Developing the Highest Quality Hardware and Software Products

WebsitePhone3 offices2 projects2 leaders1 credentialsFounded 1988

Project: Submarine Skills Training Network (SubSkillsNet)

Service: Training SystemsService: Flight Test SupportService: Hardware EngineeringIndustry: AerospaceIndustry: DefenseType: Aerospace Engineering+19 more

Saratech

Dana Point, CA

Providing Engineering and Product Development Expertise

WebsitePhone1 office4 projects7 credentialsUpdated Jun 2026

Project: Pacific Gas & Electric - Pipe Drilling & Stopping

Service: Engineering & Product Development ServicesService: CAD Design ServicesService: Advanced Engineering & CFD AnalysisIndustry: AerospaceIndustry: SpaceType: Aerospace Engineering+27 more

Science and Technology Applications, LLC

Moorpark, CA

Science and Technology Applications, LLC (STA) delivers innovative technical solutions to the space transportation and defense industries. Its principals are pioneers in the analysis, design, and development of liquid rocket engines, combustion devices, thermal fluid systems, and thermal management systems. STA has been recognized by the United States Government and the space industry for advances in LOX/Hydrocarbon and LOX/Hydrogen engines, as well as NTO/MMH variants and thrusters. Utilizing extensive experience in modeling and simulation, coupled with unique methods of component development, STA has deep heritage in propulsion and launch vehicle systems.

Website1 officeFounded 2004Updated Jun 2026

Service detail: Analysis & Design

Service: Analysis & DesignService: Systems EngineeringService: Thermo-Structural FEAIndustry: AerospaceIndustry: SpaceType: Aerospace Engineering+13 more

Sierra Engineering & Software, Inc.

Sacramento, CA

Providing Advanced Simulation Tools and Design Expertise for Liquid and Solid Rocket Propulsion Development

Website1 officeFounded 1998Updated Jun 2026

Service detail: Engine Simulation

Service: Engine SimulationService: Component DesignService: Propulsion Hardware ModelingIndustry: AerospaceIndustry: DefenseType: Aerospace Engineering+7 more

Skyward, Ltd.

Dayton, OH

Service and Solutions Above and Beyond, Excellence Above All

WebsitePhone2 offices1 projects1 leaders16 credentialsFounded 1997

Project: Project Helping Hand

Service: Test & EvaluationService: Vulnerability IdentificationService: Lethality ValidationIndustry: DefenseIndustry: FederalType: Defense Engineering+21 more

Spiral Technology, Inc.

Lancaster, CA

Leader and innovator in hands-on systems engineering providing aerospace support services

Website1 office6 credentialsFounded 2000Size Estimate: 100 employeesUpdated Jun 2026

Service detail: OTIS Telemetry Software (TMATS)

Service: Life Cycle Systems EngineeringService: Flight Controls EngineeringService: Flight Systems EngineeringIndustry: AerospaceIndustry: DefenseType: Aerospace Engineering+12 more

Tactical Engineering & Analysis, Inc.

San Diego, CA

Achieving sustained excellence in providing quality system and software engineering services - one client at a time

WebsitePhone2 offices9 leaders1 credentialsFounded 1998Updated Jun 2026

Service detail: Tactical Data Link Interoperability

Service: Tactical Data Link InteroperabilityService: MILSTD Compliance & TroubleshootingService: TDL Certification & AccreditationIndustry: DefenseIndustry: FederalType: Defense Engineering+21 more

Thoth Engineering Solutions

Irvine, CA

Pioneering Research & Development for Next Generation Aeronautical Concepts

Website1 office4 projects1 leadersUpdated Jun 2026

Project: Quad Flapper - Bio-Inspired Flapping Drone

Service: ConsultingService: Engineering AnalysisService: Aerospace Autonomy and AIIndustry: AerospaceIndustry: DefenseType: Aerospace Engineering+8 more