The Aleph Institute is an American non-profit organization affiliated with the Chabad-Lubavitch movement that provides support services to the approximately 85,000 Jews in the U.S. prison system[1] and Jewish members of the U.S. military located in the United States and deployed abroad.

For example, the institute connected Jacob Ostreicher, a Jewish businessman arrested in Bolivia in 2011 for purportedly money laundering, with actor Sean Penn.

[9] In 2010, Aleph Institute joined 200 Jewish organizations petitioning then Governor Charlie Crist for a stay of execution on behalf of Martin Grossman who was convicted of the 1984 killing of a law enforcement officer.

[10][11] Pope Benedict XVI also sent a personal request to commute the sentence but the execution proceeded and Grossman was killed in 2010.

[14][15] The European Aleph Institute was founded in 2005 and based in Brussels to ensure the religious rights of the estimated 3,500 to 5,000 Jews imprisoned in Europe.