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.

Filters2

3 Phase Associates LLC

Chattanooga, TN

Electrical Engineering and Consulting Services

Website1 office2 credentialsFounded 2016Size Estimate: 10-49 employeesUpdated Jun 2026

Service detail: Electrical Engineering

Service: Electrical EngineeringService: Power System CalculationsService: Arc Flash AnalysisIndustry: UtilitiesIndustry: Power Transmission & DistributionType: Electrical Engineering+31 more

3Vi, Inc.

San Ramon, CA

Engineering Excellence for a Sustainable Future

WebsitePhone3 offices1 leadersUpdated Jun 2026

Service detail: Systems Engineering & Integration

Service: Systems Engineering & IntegrationService: SCADA and Control SystemsService: Communications SystemsIndustry: TransitIndustry: RailType: Electrical Engineering+18 more

3jk Engineering Consultants Llc

Espanola, NM

Solving demanding technical problems through engineering, analysis, prototyping, and testing.

WebsitePhone1 office1 leadersUpdated Jun 2026

Service detail: Engineering and Design

Service: Engineering and DesignService: Custom Equipment Engineering and DesignService: Tooling, Jigs, and FixturesIndustry: Oil & GasIndustry: AerospaceType: Acoustic Consulting+30 more

A&B Foundry, Machining, and Fabrications

Franklin, OH

Engineering Excellence + Inspiring Innovation

WebsitePhone1 officeUpdated Jun 2026

Service detail: Castings

Service: CastingsService: Air Set MoldingService: V-Process CastingIndustry: AerospaceIndustry: DefenseType: Industrial Engineering+30 more

A2e Technologies

San Diego, CA

Electronic Design Built for Critical Programs

WebsitePhone1 office9 projects8 credentialsUpdated Jun 2026

Project: 600W Power Factor Corrector

Service: Electronics Design ServicesService: Hardware DesignService: PCB Design and LayoutIndustry: DefenseIndustry: AerospaceType: Electrical Engineering+24 more

ADX Research, Inc.

Schaumburg, IL

Innovative Solutions, Exceptional Performance

WebsitePhone1 office6 leaders11 publicationsFounded 2009Size Estimate: 1-10 employees

Service detail: System Design

Service: System DesignService: Power Electronics System DesignService: Communication System DesignIndustry: ElectronicsIndustry: TelecommunicationsType: Electrical Engineering+14 more

AEi Systems, Inc.

Centennial, CO

Analytical HEAVY Lifting

WebsitePhone2 offices9 publicationsFounded 1995Size Estimate: 1-25 employeesUpdated Jun 2026

Service detail: Worst-Case Circuit Analysis (WCCA)

Service: Worst-Case Circuit Analysis (WCCA)Service: Pre-WCCA design review and assessmentService: WCCA document reviewIndustry: ElectronicsIndustry: SpaceType: Electrical Engineering+38 more

AK Aerospace Technology Corporation

We Help Our Customers Make History

Website8 projectsUpdated Jun 2026

Project: James Webb Space Telescope (JWST) ISIM & NIRSpec Electronics

Service: Electrical Systems EngineeringService: Avionics DesignService: Systems Engineering & Conceptual DesignIndustry: AerospaceIndustry: SpaceType: Aerospace Engineering+7 more

AKS Engineering & Forestry

Tualatin, OR

Practical Solutions. Designed to Last.

WebsitePhone1 officeFounded 1996Size Estimate: 600+ employeesUpdated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Site Design & GradingService: UtilitiesIndustry: InfrastructureIndustry: Land DevelopmentType: Civil Engineering+35 more

AMP Optics LLC

Blue-Sky to Reality

Website6 publicationsFounded 2010Updated Jun 2026

Service detail: Optical Design and Engineering

Service: Optical Design and EngineeringService: Advanced Optical DesignService: Optical System Concept DevelopmentIndustry: AerospaceIndustry: DefenseType: Electrical Engineering+26 more

AMS Corporation

Knoxville, TN

Innovating Nuclear Technology

WebsitePhone1 office10 leaders5 credentialsFounded 1977Size Estimate: 100 employees

Service detail: I&C Performance Testing

Service: I&C Performance TestingService: Online Monitoring (OLM)Service: Reactor Thermal Power CalculationsIndustry: NuclearIndustry: Oil & GasType: Automation & Controls+20 more

AZA Engineering

New York, NY

Build better. Design right.

WebsitePhone1 officeUpdated Jun 2026

Service detail: Mechanical Engineering Design

Service: Mechanical Engineering DesignService: HVAC and Climate Control SystemsService: Commercial Kitchen VentilationIndustry: ResidentialIndustry: CommercialType: MEP+30 more

Advanced Design Services, Inc.

Melbourne, FL

Bringing your ideas to life from concept to production.

WebsitePhone1 office3 credentialsFounded 1994Updated Jun 2026

Service detail: PCB Design and Reverse Engineering

Service: PCB Design and Reverse EngineeringService: RF, Digital, and High-Speed DesignService: Product Reverse EngineeringIndustry: ElectronicsIndustry: DefenseType: Electrical Engineering+17 more

Agile Discovery Group LLC

West Berlin, NJ

Radar, Systems, and Hardware/Software Engineering

WebsitePhone2 offices2 projects7 leadersFounded 2007Updated Jun 2026

Project: X-Band Man Portable Doppler Radar (MPDR-X)

Service: Radar Systems EngineeringService: General Radar Systems EngineeringService: Radar Component EngineeringIndustry: DefenseIndustry: AerospaceType: Defense Engineering+16 more

Alico Systems, Inc.

San Diego, CA

Alico Systems is an innovative product development practice that designs solutions for consumer, industrial, government, and military markets. Its expertise spans mobile wireless computing platforms for image, voice, video, and data communications, alongside phased array beam steered antennas, RF transceivers, microprocessor and FPGA electronics, and wireless sensor networks for remote monitoring and control. Key systems include mobile satellite communications terminals, VoIP PBX systems, broadband wireless networks, and motion sensor platforms.

WebsitePhone1 office1 projects2 credentialsUpdated Jun 2026

Project: SAXBA Distributed Broadband SATCOM On-The-Move Terminal

Service: Systems EngineeringService: Communications and Network EngineeringService: Systems Integration of Mobile Wireless and Satellite NetworksIndustry: DefenseIndustry: GovernmentType: Electrical Engineering+26 more

Alliance Engineers & Project Consultants

Beaumont, TX

Multidisciplined EPCM

WebsitePhone1 office5 projects1 leadersSize Estimate: 50-200 employeesUpdated Jun 2026

Project: Bringing Ground-Breaking Water-from-Air Technology to Market

Service: Project DevelopmentService: Phased Front-End LoadingService: Front-End Engineering DesignIndustry: Carbon CaptureIndustry: ChemicalsType: Automation & Controls+43 more

Alliance PCB Solutions LLC

Mount Pleasant, SC

Designing Tomorrow's Technology-Today!

WebsitePhone1 office3 leaders1 credentialsFounded 2018Updated Jun 2026

Service detail: PCB Design & Layout

Service: PCB Design & LayoutService: EDA Library DevelopmentService: Schematic CaptureIndustry: DefenseIndustry: AerospaceType: Electrical Engineering+11 more

Altieri Sebor Wieber, LLC

Wilton, CT

Making Bold Visions Work

WebsitePhone2 offices5 projects1 leaders2 credentialsUpdated Jun 2026

Project: David Rockefeller Creative Arts Center

Service: MEPF EngineeringService: Mechanical EngineeringService: Building Automation and Energy ManagementIndustry: Arts & CultureIndustry: EducationType: MEP+56 more

Amped I LLC

Chicago, IL

We engineer & design systems for the reliability of the power grid.

Website1 office4 projects2 leadersFounded 2010Updated Jun 2026

Project: Solar & Wind Interconnects

Service: Protection & ControlService: Relay ProtectionService: Relay CommunicationsIndustry: Power Transmission & DistributionIndustry: Electric UtilitiesType: Power & Utility Engineering+34 more

Andrews & Associates Engineering, Inc.

Lynnwood, WA

Professional engineering design services specializing in instrumentation hardware and software development.

WebsitePhone1 office4 projects1 leadersFounded 1989Updated Jun 2026

Project: New Satellite Thruster Controller

Service: Electronics Design and DevelopmentService: Analog and Precision Analog CircuitryService: Digital and Microprocessor SystemsIndustry: IndustrialIndustry: DefenseType: Automation & Controls+28 more

Apogee Applied Research Inc

Dayton, OH

FPGA SDR and Signal Processing

WebsitePhone1 office2 credentialsFounded 2009Updated Jun 2026

Service detail: Digital Signal Processing & Algorithm Engineering

Service: Digital Signal Processing & Algorithm EngineeringService: Algorithm ImplementationService: SDR Packet ProcessingIndustry: GovernmentIndustry: DefenseType: Electrical Engineering+11 more

Applied Automation and Controls, Inc.

Expert Automation & Control Solutions for Oil & Gas

Website5 credentialsUpdated Jun 2026

Service detail: Automation & Control Systems Engineering

Service: Automation & Control Systems EngineeringService: Data Acquisition SystemsService: SCADA and HMI DevelopmentIndustry: Oil & GasIndustry: IndustrialType: Automation & Controls+27 more

Astra Engineering LLC

Twin Falls, ID

Industrial Design, Automation, and Engineering Solutions

WebsitePhone1 office2 projects4 credentialsSize Estimate: 10-50 employeesUpdated Jun 2026

Project: Heritage Academy Campus Expansion

Service: Construction EngineeringService: Civil EngineeringService: Structural EngineeringIndustry: ManufacturingIndustry: MiningType: Civil Engineering+32 more

Avitility

Ashburn, VA

Trusted Mission Partner delivering cutting edge Audio Visual solutions

WebsitePhone1 officeUpdated Jun 2026

Service detail: Professional AV Design and Engineering

Service: Professional AV Design and EngineeringService: Concept and Capability AssessmentService: System Diagramming and DocumentationIndustry: GovernmentIndustry: FederalType: Defense Engineering+24 more