Founded in 1920, the Congregation includes fifteen independent male monasteries spread throughout ten countries.
Their respective abbots, Theodore Neve, Robert de Kerchove, and Columba Marmion, chose to unite their communities into a new congregation.
Gerard van Caloen, founder of St. Andrew's Abbey, dreamed of reviving the missionary apostolate of such early Benedictines as Boniface, Apostle of the Germans.
Under Van Caloen's successor, Abbot Theodore Neve, the monks of St. Andrew's Abbey established mission stations in the Belgian Congo.
The abbey would go on to create monastic foundations in China, India, Poland, the United States, and Zaire.