Our History

ASI Controls

Our History

After a successful career path that led him to chair the ASHRAE Technical Committee, Bill Chapman co-founded ASI Controls in 1986 to provide innovative, reliable, scalable digital control products for HVAC control, building automation, and energy management applications.

Since introducing terminal unit controllers to the U.S. market in 1987, the company has been an innovator and early adopter of key DDC technologies, including Ethernet connectivity, object-oriented controller programming, OPC interoperability, web interfaces, and automated demand control. Among its successes, ASI Controls developed the first distributed database and control hardware and provided early methods of open systems interoperability.

Today, ASI manufactures a suite of leading-edge digital controls solutions that maintain its commitment to backward compatibility and system interoperability.

Contact sales@asicontrols.com to learn more about our approach to controls solutions.

ASI Timeline

Why Choose ASI?


Save money with some of the lowest prices in the industry.


Rugged and durable, our products stand the test of time in the real world.


Avoid the cost, time and hassle of equipment replacement.


Questions answered quickly by our friendly support staff.