The International Group of Ex Libris Users (IGeLU) is the collective voice and advocate for users of Ex Libris products. We represent over 400 member institutions representing more than 1,600 libraries and archives in 39 countries around the world, and we work with over 30 independent National and Regional User Groups.

ELUNA is the international user community for Ex Libris customers in North America. ELUNA is a major voice and advocate for users of Ex Libris products, representing over 1,300 academic, public, government, and corporate libraries and library consortia in Canada, the Caribbean Islands, Central America, Mexico, the United States, and beyond.