Control Specialists footer logo presented by Relevant Industrial, showcasing expertise in automation, UL panel design, and industrial control solutions.

Control Specialists

Your Partner in Industrial Combustion and Process Controls

Founded in 1983 and headquartered in Evansville, Indiana, Control Specialists LLC has established itself as a trusted leader in combustion and control systems. In December 2024, the company became part of Relevant Industrial, enhancing its capabilities and commitment to delivering innovative solutions across various industries.

With a strategic location, Control Specialists offers excellent service coverage to the greater Tri-State area, providing parts, technical services, and turnkey system integration packages to ensure customers’ operations remain efficient and compliant with industry standards.

Since joining Relevant Industrial in December 2024, Control Specialists LLC has expanded its capabilities and strengthened its commitment to providing innovative solutions across various industries. This partnership has enhanced our product offerings and service delivery, ensuring customers receive the most advanced and reliable solutions available.

Control Specialists

Control Specialists Product Offerings

Control Specialists LLC offers a wide range of products and services designed to meet the diverse needs of industrial operations:

Industrial Process Controls

Instrumentation and Controls

Providing comprehensive solutions in instrumentation and controls for industrial processes, HVAC systems, burners, boilers, and process loops.

Custom Control Panels

Specializing in the design, fabrication, and testing of custom industrial control panels, certified under UL 508A standards, ensuring safety, reliability, and compliance.

Calibration and Repair Services

NIST-Certified Calibration

Offering calibration services using NIST-certified or traceable equipment to meet industry standards, including AMS2750D, ASM, and ASTM.

Repair Services

Providing both in-house and on-site repair services to ensure minimal downtime and optimal performance of industrial systems.

Field Services

On-Site Support

Delivering on-site services such as troubleshooting, calibrations, and NFPA combustion safety checks to maintain system efficiency and safety.

System Integration

Offering turnkey system integration solutions, including start-up, commissioning, and PLC programming support, to ensure seamless operation of complex industrial processes.

Training and Technical Support

Specialized Training

Providing specialized training courses in process instrumentation, combustion, and HVAC controls, conducted by qualified instructors at our on-site training facility or at customer locations.

Technical Support

Offering technical support and application design assistance to help customers optimize their systems and processes.

Why Choose Control Specialists LLC?

Extensive Experience

Over four decades of expertise in combustion and control systems.

Comprehensive Product Range

A wide array of products and services, from custom control panels to calibration and repair services.

Dedicated Customer Support

A commitment to exceptional service and technical support throughout the project lifecycle.

Quality Assurance

High-quality products and services designed to ensure safety, efficiency, and reliability in all applications.

Visit Our Website

For more detailed information about Control Specialists LLC and our offerings, please visit our website at