A magical organization or "magical order" is an organization created for the practice of magic or to further the knowledge of magic among its members. "Magic" in this case refers to occult, metaphysical and paranormal activities, not to the performance of stage magic. Magical organizations can include hermetic orders, Wiccan covens or Wiccan circles, esoteric societies, arcane colleges, witches' covens, and other groups which may utilize different terminology and similar though diverse practices.
The Hermetic Order of the Golden Dawn has been credited with a vast revival of occult literature and practices and was founded in 1887 or 1888 by William Wynn Westcott, Samuel Liddell MacGregor Mathers and William Robert Woodman. The teachings of the Order include Enochian magic, Christian mysticism, Qabalah, Hermeticism, the paganism of ancient Egypt, theurgy, and alchemy.
Ordo Templi Orientis was founded by Carl Kellner in 1895. The Order was reworked by Aleister Crowley after he took control of the Order in the early 1920s.
Ordo Aurum Solis, founded in 1897, is a Western Mystery Tradition group teaching Hermetic Qabalah. Its rituals and system are different from the more popular Golden Dawn, this is because the group follows the ogdoadic tradition instead of rosicrucianism.