ERS is a Caterpillar® dealer that is dedicated to the specialty rental business and has one of the largest equipment rental f ... leets of Temperature Control, Compressed Air, and Power Generation products on the Gulf Coast. Our unmatched product support services include design, engineering, installation and operation to help solve your temporary utility needs. ERS brings the power of the CAT® network and the expertise and focus of a specialty rental business to our customers to solve their temporary utility needs. read more