RJI is a sister company of Electronic Support Systems(ESS) and will continue to operate as independent business units to support both the local HVAC and Critical Infrastructure markets.

RJI was founded in 1974 as a manufacturer’s representative of specialized commercial and industrial HVAC equipment. Since that time, RJI Sales has grown to offer a full range of products and services focused on HVAC and Green Engineered Solutions.

In addition to providing specialty equipment and replacement parts, RJI provides full-service solutions to end-users, consulting engineers, and contractors to assist them with high-performance building solutions focused on environmental management.