The Alliance incorporates the following Orders of Catholic men, working in twenty-seven countries throughout the world:

International Alliance of Catholic Knights
Hampshire GU46 6XP
United Kingdom

Knights of Columbus
1 Columbus Plaza
New Haven, CT 06510

Knights of Peter Claver, Inc.
1825 Orleans Avenue
New Orleans, LA 70116-2825

Knights of St Columba
Head Office
Curial Offices
196 Clyde Street Glasgow G1 4JY

The Knights of St. Columbanus
Ely House,
Ely Place,
Dublin 2.

Knights of the Southern Cross
PO Box 216
CAMPBELL 2612
Australian Capital Territory

The Catholic Order of the Knights of da Gama
88 Eighth Avenue
Edenvale
Gauteng

Knights and Ladies of Marshall
Supreme council
P.o Box 175
Sekondi

Knights of Saint Thomas Moore
Belgium