
3 Phase Associates LLC
Chattanooga, TNElectrical Engineering and Consulting Services
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Electrical Engineering and Consulting Services

Trusted Engineering and Integration Since 1977

Precision Industrial Control and Automation Engineering
Engineering. Delivered.

New England automation solutions and custom machinery
Empowering Your Automation Projects

Be in Control.

Turnkey Installation & System Integration

A Structural Systems Manufacturer, Not a Commodity Supplier

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

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.

Expert Automation & Control Solutions for Oil & Gas

Industrial Design, Automation, and Engineering Solutions

The Top Design Engineers in Kansas City

Control System Integrator specializing in Automation & Information Systems

Engineering Human Solutions

Full Service Automation and Engineering

Turnkey Industrial Dust Collection and Vacuum Systems

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.

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.

Engineered Noise & Vibration Control. Measured Results.
Where Precision Meets Reliability

Multi-Discipline Engineering, Design, and Precision Fabrication