Prime Controls, LP is a systems integration and I&C (instrumentation and controls) construction firm operating as a Main Automation Contractor. Founded in 1991 in Lewisville, Texas, the company is recognized as one of the largest privately owned controls engineering firms in the United States, and was named a 2025 System Integrator Giant. It is headquartered in the Dallas-Fort Worth area and maintains multiple offices throughout the country, serving customers nationwide.
The firm provides fully integrated solutions for industrial automation and control applications, encompassing design, panel fabrication, programming, electrical work, and construction services. Its technical scope covers systems integration, I&C construction, industrial automation, control systems engineering, panel fabrication, programming, and electrical work.
Prime Controls serves several industry verticals including water and wastewater, oil and gas, mission-critical data centers, and utility applications. The company is known for delivering total solutions with total responsibility to its clients.





