In 1885 he was presented to Bartolomeo Cabella, director of the Italian Brown Boveri Tecnomasio and hired as a mechanic for measuring instruments and for electrical work applied to lighting.

In December 1905 it opened a plant in Sesto San Giovanni, producing small electric motors, centrifugal pumps and transformers.

[1] The joint venture established equal shares of capital, giving the presidency and the technical management, as well as the commercial one to Marelli.

The latter collects an extremely important documentary heritage for the history of industry in the fields of motor vehicles, telecommunications, radio and television, produced by the company in over ninety years of activity.

[3] The preserved historical material covers an era that goes from the end of the 19th century to 2000 and is made up of a sector related to image and communication, with about 20,000 images, 500 films and over 2000 pieces among business magazines, brochures, advertisements and press reviews; a technical sector with over 1000 product catalogs, manuals and technical drawings; reports and company balance sheets.