Serving You Since 1937

Loy Instrument, Inc. was established in 1937 as a privately-owned organization serving the process control market. Our hands-on approach proved to be what our customers wanted back then, as well as today. Since that early beginning Loy has strived to understand the customer's processes in order to recommend the best solution. A combined 500+ years of in-house process control/combustion experience gives our customers the benefit of working with a company that has been there, and done that. Loy knows and understands the engineering, processes, product quality, and service concerns of our customers.
     That's who we are! 

      From design assistance required by the largest heat treating customer to the single loop process control, Loy Instrument, Inc. stands ahead of its competition with a regional network of experienced sales engineers and service technicians based in the field--where you need them, when you need them. These highly-skilled professionals are some of the most knowledgeable and experienced in the process control/industrial combustion industry. Loyal customer support and recognition of our application expertise has defined Loy Instrument, Inc. as best in class.


Corporate Headquarters - Indianapolis, IN

Regional Presence

Loy Instrument, Inc. operates regionally with an insightful understanding of our unique and diverse customer base. We take pride in the fact that our number one goal is to meet or exceed our customer's expectations. That's why our entire organization is committed to do whatever it takes whenever our customers call. 100% customer satisfaction is the only choice. There is no alternative.

Fort Wayne, IN

Cleveland, OH

Loy Instrument Timeline