Founded in 1973, SEI has served the Power, Recover...

Founded in 1973, SEI has served the Power, Recovery, Refinery, Steel, and Cement markets heavily for much of these past 40 years. The SEI-Group is comprised of three operating units: Southern Environmental, Inc., Southern Erectors, Inc. and Thermal Systems Group. These business units are integrated into a tightly knit group who self-perform vertically integrated Design and Erect Air Pollution Control Projects.