Salesian school “Salesian Santísima Trinidad School” is an educational institution founded in 1893, which includes the following schools: primary, general, vocational, first and second level, and vocational education at the higher education level. Over 1,600 students attend the school. For two years, it has the status of a bilingual school (Spanish and English).
In the department related to vocational education, the school educates approximately 650 students in professions related to eletricity, mechanics, automation, telecommunications and electronics at the level of upper secondary school and 80 students at the first-cycle vocational school. The school has not only a long tradition in vocational education but also offers courses for employees of companies, the unemployed and other entities. He has his own vocational training workshops with specialist equipment.

The Salesian School and Trinidad strongly emphasize the internationalization of the educational center as a method to raise the level of education of pupils, both in terms of the level of education and personal development. In recent years, cooperation and projects have been implemented with schools from Switzerland, France, the United Kingdom, Ireland, Italy, Germany and Poland. These projects concerned both youth mobility and training of educational staff.
The school was the partner hosting the Leonardo da Vinci program projects, and is currently implementing Erasmus +, K102, and K103 projects. They also have an Erasmus + card for higher education.
Since 2006, the school has a quality certificate UNE-EN-ISO 9001 issued by Eduqatia.