Guanella also founded the Pious Union of Saint Joseph (1914) with his supporter and first member Pope Pius X. These religious communities focused on the relief of the poor throughout the world.
Guanella juga mendirikan Persatuan Pius Santo Yusuf (1914) dengan pendukung dan anggota pertamanya Paus Pius X. Komunitas-komunitas agama tersebut berfokus pada pemulihan orang miskin di seluruh dunia.