The Watch Tower Bible and Tract Society of Pennsylvania is a non-stock, not-for-profit organization headquartered in Warwick, New York. Wikipedia
Founder: Charles Taze Russell
Headquarters: New York, NY
President: Robert Ciranko
Founded: February 16, 1881, Pittsburgh, PA
Formerly called: Zion's Watch Tower Tract Society (1881–1896); Watch Tower Bible and Tract Society (1896–1955)