The telecommunications giant, Claro, is well known for its union busting activities in Colombia. At Comcel, a branch of the conglomerate, there is no trade union. In Telmex-Colombia, also part of the Claro group, the union (SintraTelmex) has only 190 affiliated workers. Despite the fragile situation of SintraTelmex, the company has implemented a series of anti-union measures including the dismissals of union leaders.
After being ordered to reinstate workers unlawfully dismissed for creating a union, Fundación Universitaria San Martín reinstated them in junior positions and separate from each other in the campus.