Many works on the occult sciences have hinted at schools and universities especially for those who were drawn to them. These institutions have been common in every era and age. Paracelsus lectured on the subject of alchemy at the University of Basel.
Rome's College of Augurs and the Calmecac of Ancient Mexico are examples of universities for the studies a specific branch of occultism, and the House of Wisdom in Cairo of the Ismaelite sect should also be noted. It's assumed that institutions of this nature flourished in secret throughout Egypt and Babylonia. There are always vague whispers of occultist schools in Europe, but open information is rarely freely offered.