Founded in the early 1900s under the name of its founder, Mario Monsurrò, COELMO® (Costruzioni Elettromeccaniche Monsurrò) was first located in Casoria (Naples).

Since then, the company's core business activity has been the production of generator sets (from 3 to 3000 KVA).

Experience and skills acquired throughout the years have allowed the company to increase its product range and consolidate its position in the uninterruptible electrical power sector.