During the decade of the 70s the growth of the company accelerated and the partners decide to professionalize the management hiring external directors to the family that contribute a new vision and new ideas.

In 1980, Calmell already occupies the four floors of the building on Siracusa Street and has left the old place where he was born. There is a change of shareholders, with the purchase of most of the shares to the Calmell family by the new management, which allows new initiatives, investments in machinery and new products to facilitate the growth and consolidation of the company. company. Following the objective of technically evolving, Calmell specializes in products that incorporate magnetic stripe: highway toll tickets, savings passbooks and magnetic cards for public transport. The company starts its internationalization.