The Group Theory group in Madrid has members in different institutions Yago Antolín at the UCM, Javier Aramayona at CSIC, and Andrei Jaikin at UAM. The group specializes on different aspects of infinite groups. Particular emphasis is placed on Asymptotic Group Theory (e.g. L2 invariants, growth functions), Geometric Group Theory (e.g. nonpositively curved groups, mapping class groups), Profinite Groups, and Representation Theory. We run several activites: a weakly seminar, an annual conference (Groups in Madrid) and we organize several schools.