In 1919, Crowley issued a manifesto for his branch of the O.T.O. called the Mysteria Mystica Maxima in which he stated that "the O.T.O. is a body of initiates in whose hands are concentrated the wisdom and the knowledge of the following bodies":

The Gnostic Catholic Church

The Order of the Knights of the Holy Ghost

The Order of the Illuminati

The Order of the Temple (Knights Templar)

The Order of the Knights of St John

The Order of the Knights of Malta

The Order of the Knights of the Holy Sepulcher

The Hidden Church of the Holy Grail

The Rosicrucian Order

The Holy Order of the Rose Croix of Heredom

The Order of the Holy Royal Arch of Enoch

The Antient and Primitive Rite of Masonry (33 degrees)

The Rite of Memphis (97 degrees)

The Rite of Mizraim (90 degrees)

The Ancient and Accepted Scottish Rite of Masonry (33 degrees)

The Swedenborgian Rite of Masonry

The Order of Martinists

The Order of the Sat Bhai

The Hermetic Brotherhood of Light

The Hermetic Order of the Golden Dawn, and many other orders of equal merit, if of less fame.