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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3 Phase Associates LLC

Chattanooga, TN

Electrical Engineering and Consulting Services

Website1 office2 credentialsFounded 2016
Service: Electrical EngineeringService: Power System CalculationsIndustry: UtilitiesType: Electrical Engineering+33 more

A.W. Schultz Inc.

Shawnee, KS

Trusted Engineering and Integration Since 1977

WebsitePhone1 office3 credentials
Service: Process Control and SCADA SystemsService: Process Visualization & HMI/OITIndustry: Water SupplyType: Automation & Controls+27 more

ASR Engineering Inc.

Portland, ME

Precision Industrial Control and Automation Engineering

WebsitePhone1 office1 credentials
Service: Industrial Control Automation EngineeringService: PLC and PAC ProgrammingIndustry: Food & BeverageType: Automation & Controls+28 more

Acropolis Engineers

Raleigh, NC

Engineering. Delivered.

WebsitePhone2 offices1 projects
Service: Equipment Optimization & MaintenanceService: Equipment Installation & CommissioningIndustry: Automation & ControlsType: Automation & Controls+16 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 Control Services Inc

Dorado, PR

Empowering Your Automation Projects

WebsitePhone1 officeFounded 1999
Service: Controls and AutomationService: PLC and SCADA ProgrammingIndustry: CommercialType: Automation & Controls+20 more

Advanced Integration Group, Inc.

McKees Rocks, PA

Be in Control.

WebsitePhone1 office2 projects
Service: Control Systems Design and ImplementationService: PLC ProgrammingIndustry: Power GenerationType: Automation & Controls+39 more

Ahavah Automation

Dallas, TX

Turnkey Installation & System Integration

WebsitePhone1 office7 projects
Service: Electrical EngineeringService: Electrical DesignIndustry: ManufacturingType: Automation & Controls+27 more

Aldac Components Inc.

Modesto, CA

A Structural Systems Manufacturer, Not a Commodity Supplier

WebsitePhone1 office6 projects
Service: Truss Design & ManufacturingService: Roof Truss Design & FabricationIndustry: Multifamily ResidentialType: Structural Engineering+14 more

Allan Integrated Control Systems, Inc.

East Troy, WI

Intelligent Automation Solutions

WebsitePhone1 office2 leaders
Service: SCADA SystemsService: Conceptual and Functional DesignIndustry: Water SupplyType: Automation & Controls+26 more

Andrews & Associates Engineering, Inc.

Lynnwood, WA

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

WebsitePhone1 office4 projects
Service: Electronics Design and DevelopmentService: Analog and Precision Analog CircuitryIndustry: IndustrialType: Automation & Controls+30 more

Annex Engineering Group

Columbus, OH

Founded in 2017, Annex Engineering Group is a service-oriented MEP and fire protection engineering firm based in Columbus, Ohio. Annex offers mechanical, electrical, plumbing, and fire protection coordination engineering for projects ranging from office remodels, multi-family residential, and restaurants to manufacturing/industrial facilities and historical renovations. Licensed in 49 states and Washington D.C., Annex serves as the prototype engineer for several national clients, establishing design standards that reduce construction costs and timelines while increasing consistency and quality.

WebsitePhone1 officeFounded 2017
Service: Mechanical EngineeringService: HVAC System DesignIndustry: CommercialType: MEP+33 more

Applied Automation and Controls, Inc.

Expert Automation & Control Solutions for Oil & Gas

Website5 credentialsUpdated Jun 2026
Service: Automation & Control Systems EngineeringService: Data Acquisition SystemsIndustry: Oil & GasType: Automation & Controls+29 more

Astra Engineering LLC

Twin Falls, ID

Industrial Design, Automation, and Engineering Solutions

WebsitePhone1 office2 projects
Service: Construction EngineeringService: Civil EngineeringIndustry: ManufacturingType: Civil Engineering+34 more

Automated Motion Inc.

Lee's Summit, MO

The Top Design Engineers in Kansas City

WebsitePhone1 officeUpdated Jun 2026
Service: Design EngineeringService: Contract ManufacturingIndustry: AerospaceType: Electrical Engineering+7 more

Automation Control Service LLC

Pensacola, FL

Control System Integrator specializing in Automation & Information Systems

WebsitePhone1 office8 credentials
Service: Municipal & Industrial AutomationService: PLC & HMI ProgrammingIndustry: GovernmentType: Automation & Controls+25 more

B&C Transit Inc.

Oakland, CA

Engineering Human Solutions

WebsitePhone4 officesUpdated Jun 2026
Service: Train Control SystemsService: Networked Central Control SystemsIndustry: TransitType: Automation & Controls+18 more

Brugh Industrial Engineering

Indianapolis, IN

Full Service Automation and Engineering

WebsitePhone1 office1 projects
Service: Industrial Robot IntegrationService: FANUC Robot IntegrationIndustry: Automation & ControlsType: Automation & Controls+29 more

CAT Technologies, LLC

Willoughby, OH

Turnkey Industrial Dust Collection and Vacuum Systems

WebsitePhone1 officeUpdated Jun 2026
Service: Air Pollution Control and Environmental SystemsService: Industrial Dust Collection SystemsIndustry: MetalsType: Process Engineering+26 more

Campbell Technical Services

Twin Falls, ID

Campbell Technical Services (CTS) is a licensed, bonded, and insured consulting and contracting firm based in Twin Falls, Idaho, providing operations improvement, energy efficiency, process engineering, and project management solutions worldwide since 2005. CTS holds state contractor licenses in Idaho, Nevada, Montana, North Dakota, Washington, and Oregon, and operates a certified panel shop accredited by Intertek ETL for C/US compliance.

WebsitePhone1 office10 credentials
Service: Operations Improvement ConsultingService: Energy Efficiency Through Process OptimizationIndustry: IndustrialType: Process Engineering+9 more

Cascade Integration & Development, Inc.

Bend, OR

Cascade Integration & Development, Inc. is a Bend, Oregon-based control systems integration firm serving West Coast utilities, manufacturers, and process industries since 2004. It delivers custom automation solutions, PLC and HMI programming, SCADA upgrades, MES integration, panel design and fabrication, and OT cybersecurity support for water, wastewater, manufacturing, food and beverage, pharmaceutical, chemicals, utilities, and oil and gas operations.

WebsitePhone1 officeFounded 2004
Service: Control Systems IntegrationService: PLC ProgrammingIndustry: Automation & ControlsType: Automation & Controls+18 more

Chestnut Key Enterprises LLC

Rochester Hills, MI

Engineered Noise & Vibration Control. Measured Results.

WebsitePhone1 office3 projects
Service: Acoustic Consulting & DesignService: Architectural Acoustic Design AssistIndustry: CommercialType: Acoustic Consulting+28 more

Citadel Engineering Company

Salt Lake City, UT

Where Precision Meets Reliability

WebsitePhone1 office15 credentials
Service: Engineering DesignService: Feasibility Studies and Project PlanningIndustry: Oil & GasType: Process Engineering+55 more

Claymore Group LLC

Daphne, AL

Multi-Discipline Engineering, Design, and Precision Fabrication

WebsitePhone1 office1 credentials
Service: Civil EngineeringService: Road and Bridge DesignIndustry: IndustrialType: Civil Engineering+54 more