A number of organizations under the auspices of the Abbey-Principality of San Luigi have received Diplomas of Cultural Merits from the publishing houses Aracne Editrice, La Bussola Edizioni and Aracne TV, based in Rome, Italy, and their founder Prof. Dr Gioacchino Onorati. A mutual relationship of recognition exists with these bodies.

The Apostolic Episcopal Church

The Byelorussian Patriarchate of St Andrew the First-Called Apostle

The Ecclesia Apostolica Divinorum Mysteriorum

The Institute of Arts and Letters (London)

The Anglican Association of Colleges and Schools