Pir Zia Inayat Khan is the spiritual leader of the Sufi Order International (established by Hazrat Inayat Khan in London, 1917) and founding director of the Suluk Academy, an esoteric school located in upstate New York. His initiatory heritage integrates the sacred transmissions of the Chishti, Suhrawardi, Qadiri, and Naqshbandi lineages within a post-denominational, interspiritual trajectory. Pir Zia holds a Master’s degree in Religion from Duke University.

From: http://www.suficonference.org/2002PZIKExtendedBiography.html

See Also:
The Sufi Order International: http://www.sufiorder.org
The Abode of the Message: http://www.theabode.net