Primo Library Discovery Service

Primo is a market-leading library discovery service designed to help researchers and students find and access print, electronic, and digital resources. Originally developed by Ex Libris, an Israeli software company that specialized in library automation, the product has become a standard in academic and research libraries worldwide.

Over the decades, the ownership of the brand has shifted through major corporate acquisitions. Originally an independent venture, Ex Libris was acquired by ProQuest in 2015, which significantly expanded its reach. In 2021, Clarivate, a global leader in providing trusted insights and analytics, acquired ProQuest, bringing Primo into its expansive portfolio of intellectual property and scientific research tools. Today, the product is maintained as part of Clarivate's academic and government division.