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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A & S Engineers, Inc.

San Francisco, CA

Full-service Mechanical, Electrical, Plumbing Engineering and Commissioning Firm

Website1 office6 leadersUpdated Jun 2026
Service: Mechanical EngineeringService: HVAC & Hydronic SystemsIndustry: Multifamily ResidentialType: MEP+20 more

A2e Technologies

San Diego, CA

Electronic Design Built for Critical Programs

WebsitePhone1 office9 projects
Service: Electronics Design ServicesService: Hardware DesignIndustry: DefenseType: Electrical Engineering+26 more

AMP Optics LLC

Blue-Sky to Reality

Website6 publicationsFounded 2010Updated Jun 2026
Service: Optical Design and EngineeringService: Advanced Optical DesignIndustry: AerospaceType: Electrical Engineering+28 more

Advance Design Consultants Inc

San Jose, CA

Experience. Passion. Excellence.

WebsitePhone1 office7 projects
Service: Architecture & PlanningService: Architectural DesignIndustry: CommercialType: Architecture & Engineering+40 more

Advanced Automation LLC

Dover, NH

New England automation solutions and custom machinery

WebsitePhone1 office6 credentials
Service: Automation Systems IntegrationService: Robotic Machine TendingIndustry: ManufacturingType: Automation & Controls+25 more

Advanced hCMOS Systems LLC

Discover something new with an hCMOS detector

Website4 leaders5 publicationsUpdated Jun 2026
Service: Custom IC DesignService: Radiation-Hardened ASIC DesignIndustry: ElectronicsType: Electrical Engineering+12 more

Advantek Engineering Inc.

Orlando, FL

Designs for Automation, Prototypes and Product Engineering

WebsitePhone1 office1 leaders
Service: Automated MachineryService: Assembly, Sorters, Pick & PlaceIndustry: Automation & ControlsType: Mechanical Engineering+32 more

AlfaTech

Harmonizing Relationships, Sustainability and Innovation

Website10 projects13 leadersUpdated Jun 2026
Service: MEP EngineeringService: Mechanical Engineering DesignIndustry: CommercialType: MEP+67 more

Alliance Technical Group

Decatur, AL

Alliance Technical Group is a full-service environmental services company founded in 2000 in Decatur, Alabama, with over 2,200 employees and more than 60 testing and laboratory locations across the United States and Canada. Alliance helps industrial, manufacturing, energy, and government clients achieve environmental compliance through on-site testing and monitoring, laboratory testing and analysis, and regulatory consulting. The company operates 110-plus mobile laboratories and delivers services across stack testing, LDAR, ambient air monitoring, CEMS, and environmental consulting.

WebsitePhone1 office4 leaders
Service: Environmental ComplianceService: Regulatory StrategyIndustry: IndustrialType: Environmental Engineering+21 more

Anguil Environmental Systems

Milwaukee, WI

Innovative Pollution Control Technologies

WebsitePhone1 office3 credentials
Service: Air Pollution ControlService: Regenerative Thermal Oxidizers (RTOs)Industry: ManufacturingType: Environmental Engineering+24 more

Arete Technologies Llc

Austin, TX

Turn Your Vision into a Reality

WebsitePhone1 office4 projects
Service: MEP EngineeringService: General HVACIndustry: CommercialType: MEP+20 more

Atlantic Circuit Technologies, Inc.

Atlanta, GA

Atlantic Circuit Technologies, Inc. is an advanced engineering services firm headquartered in Atlanta, Georgia, that supports US Government agencies and private industry across data analytics, digital twin modeling, IoT devices, and systems integration. Its engineers specialize in data visualization, embedded machine learning, and regulatory compliance engineering for government contractors. Atlantic Circuit Technologies also operates the Syclops Platform for AI-driven predictive analytics in PCB manufacturing and counterfeit electronic part detection under SAE AS6171, and provides IP and engineering advisory services to semiconductor companies.

WebsitePhone1 officeUpdated Jun 2026
Service: Data Analytics and Advanced VisualizationService: Digital Twin ModelingIndustry: DefenseType: Defense Engineering+7 more

BLT

Columbia, MD

The FPGA Experts

WebsitePhone2 offices2 credentials
Service: FPGA & SoC DesignService: FPGA Design ServicesIndustry: AerospaceType: Electrical Engineering+20 more

Bantam Engineering Inc.

Portland, OR

Bantam Engineering is a Portland, Oregon mechanical engineering and commissioning practice. It delivers HVAC design, plumbing design, and building commissioning for healthcare facilities, schools, government offices, airports, and semiconductor clean rooms. Owner Christine McKinley, PE holds licenses in Oregon, Washington, and California. Known for code fluency and a collaborative approach on construction sites and in permit negotiations, the practice specializes in radiant and dedicated outdoor air systems, clean-room mechanical design, and HVAC work within constrained existing buildings.

Website1 office7 projects1 leaders
Service: Mechanical EngineeringService: HVAC DesignIndustry: HealthcareType: MEP+12 more

Bradford Consulting Engineers, Inc.

A Higher Standard of Engineering & Design

WebsiteFounded 1999Updated Jun 2026
Service: Mechanical, HVAC, and Plumbing EngineeringService: HVAC System DesignIndustry: CommercialType: MEP+30 more

Brixton Technology LLC

Brixton Technology LLC develops software to auto-generate and streamline the design flow of Digital/Analog/Mixed-Signal IP blocks, focusing on Readout Integrated Circuit (ROIC) and CMOS Imager Sensor (CIS) chip designs. It aims to significantly reduce design time, risk, and cost for custom circuit design IP.

WebsiteUpdated Jun 2026
Service: EDA Software DevelopmentService: Integrated Circuit IP Block AutomationIndustry: SemiconductorsType: Automation & Controls+5 more

Butler Aerospace & Defense

Engineering Your Future-readiness

WebsiteUpdated Jun 2026
Service: Product DevelopmentService: Engineering SupportIndustry: Automation & ControlsType: Aerospace Engineering+61 more

CTC Design, Inc.

Santa Clara, CA

Building commissioning and retrocommissioning services

WebsitePhone1 office1 projects
Service: Building Commissioning (Cx)Service: Comprehensive Commissioning Services For New Facility Systems To Verify Design PerformanceIndustry: IndustrialType: Mechanical Engineering+6 more

Cambridge Consultants Inc.

Boston, MA

The deep tech powerhouse of Capgemini

Website1 office1 projects1 leaders
Service: Deep Tech Innovation and Product DevelopmentService: Design Engineering ServicesIndustry: TelecommunicationsType: Telecom / RF Engineering+26 more

Clay Allen Design

Sacramento, CA

From napkin sketches to production, delivering mechanical engineering and industrial design to bring complex products to market.

WebsitePhone1 office1 leaders
Service: Mechanical Engineering & Product DesignService: Industrial Design ServicesIndustry: AerospaceType: Mechanical Engineering+17 more

Cold Spring Engineering, LLC

Santa Barbara, CA

Engineering Services, Software, Hardware, Systems

WebsitePhone1 officeFounded 2002
Service: Engineering ServicesService: Software EngineeringIndustry: DefenseType: Aerospace Engineering+18 more

Columbia Engineering Group

Washougal, WA

Engineering Excellence with Comprehensive Full Service Solutions

WebsitePhone1 office6 projects
Service: Mechanical EngineeringService: HVAC System DesignIndustry: CommercialType: MEP+72 more

Computer Engineering Service

Glass science, infrared thermography, and high-temperature gas processing oven engineering

Website1 leaders3 credentialsFounded 1992
Service: Glass and Ceramic Materials ScienceService: Glass Science and Materials DevelopmentIndustry: SemiconductorsType: Automation & Controls+14 more

Control Engineers

Boise, ID

Industrial Electrical and Control Systems Engineering

WebsitePhone1 office7 projects
Service: Electrical EngineeringService: Power Distribution DesignIndustry: Water SupplyType: Electrical Engineering+19 more