Corporations of Jehovah's Witnesses

The oldest and most prominent of their corporation names, "Watch Tower Society", has also been used synonymously with the religious organization of Jehovah's Witnesses, even in their own literature.

[4] Watch Tower Bible and Tract Society of Pennsylvania is a non-stock, not-for-profit organization[5] headquartered in Warwick, New York, United States.

The society was founded in 1881 with William Henry Conley, a Pittsburgh businessman, as the first president and Charles Taze Russell as secretary-treasurer.

[8] Watchtower Bible and Tract Society of New York, Inc. is a corporation used by Jehovah's Witnesses which is responsible for administrative matters, such as real estate, especially within the United States.

[21][22] Reorganization in 2000 resulted in the creation of several additional corporate entities to serve the needs of the United States branch of Jehovah's Witnesses.

Since then, most written communication with congregations and individuals in the United States involves the Christian Congregation of Jehovah's Witnesses, Inc.; other corporations include: The International Bible Students Association (IBSA) is a corporate not-for-profit organization used by Jehovah's Witnesses in the United Kingdom for the production and distribution of religious literature.

The Watch Tower Society stated in 1917 that the IBSA, along with its Pennsylvania and New York based corporations "were organized for identical purposes and they harmoniously work together.