TESI was founded in 1981 with the purpose of giving their own contribute to the services improvement and the reliability of the clinical scene, by developing and proposing innovative informative systems regarding diagnostic, clinical, surgical and management fields.
The territorial setting, counting upon the offices of Milano and Pianiga (VE) and an efficient tecnical assistance, distribuited all around the national territory, along with the competence and the preparation of their own specialists, allow TESI to guarantee all their clients accurate and effective services H24.
TESI has significantly increased its presence on the European and Latin American markets thanks to the excellence and reliability of the products and services offered that allow it to operate successfully in different contexts such as:

• Italy
• Poland
• Spain
• Mexico
• Colombia
• Brazil

In 1991, TESI get started to operate in Mexico and even in other fields of the South American market, through the consociated Informatica Tesi de Mexico S.A. de C.V., located in Mexico City.