The Company founded in 1952, has delivered its activity in the design and installation of electrical systems, by a medium voltage delivery to low voltage final distribution for power plants, explosion proof plants and special plants such as fire, voice data, anti-intrusion and control, working in the civil and in the tertiary industry.
Overtime Cotti&Marchi in addition to electrical systems extended the activities to the design and the installation of mechanical systems, such as heating, cooling, air conditioning and plumbing systems.
Cotti&Marchi has created a specific area related to building electrical transformer transportable substations, both containerised for large construction sites, that armoured tunnel substations for use in tunnel during construction and also when the work is realized.

The Company goal is to provide full service to Customers, thereby ensuring competence and professionalism.