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Ex Libris Group

Israeli provider of library, research-management, and higher-education software.

Last updated August 24, 2026

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Overview

Ex Libris Group is an Israeli enterprise software company focused on the information-management needs of academic, research, and national libraries. Its systems support core library operations, discovery of scholarly resources, electronic-resource management, digital preservation, reading-list administration, research-services workflows, and related campus or scholarly communication activities. The company is headquartered in Jerusalem and operates internationally through offices and customers in many regions. The business originated in a Hebrew University of Jerusalem project begun around 1980. The university needed a library-management system capable of handling Hebrew and Latin scripts, a requirement that existing systems did not adequately meet. The resulting software, ALEPH-100, became the foundation of a commercial business. Hebrew University's technology-transfer organization, Yissum, established Aleph-Yissum Ltd. in 1983 to commercialize the system, while technology entrepreneur Azriel Morag founded Ex Libris Ltd. in 1986 to market the software internationally. In 1995, Aleph-Yissum and Ex Libris merged and reorganized as the Ex Libris Group. ALEPH gained early traction in Israel and abroad. By the early 1990s it had been adopted by the Vatican's libraries, and by the middle of that decade libraries in dozens of countries were using it. Ex Libris subsequently expanded beyond the traditional integrated library system through acquisitions and internally developed products. SFX, acquired from the University of Ghent in 2000, helped popularize OpenURL link-resolution workflows. MetaLib, DigiTool, Verde, Primo, bX, and Rosetta extended the portfolio into federated search, digital asset management, electronic-resource administration, discovery, recommendation, and preservation. A major strategic transition occurred with Alma, the company's cloud-based library-services platform. Developed with university partners and released in the early 2010s, Alma represented a move away from predominantly on-premises library systems toward software delivered as a service. Primo and later related discovery products connected library collections and external scholarly content through user-facing search and delivery tools. Leganto extended the platform into teaching and learning by managing course reading lists, while Esploro expanded the company's scope into institutional research management. Ex Libris also added adjacent capabilities through acquisitions, including the campusM mobile-campus platform, Research Research's funding and policy intelligence activities, and RapidILL resource-sharing technology. Ownership changed several times during the company's expansion. Francisco Partners became its sole owner in 2006, Leeds Equity Partners acquired it in 2008, and Golden Gate Capital acquired it in 2012. ProQuest purchased Ex Libris in 2015, after which Ex Libris also managed several ProQuest workflow products, including Summon, 360 Link, and Intota-related capabilities. Clarivate acquired ProQuest, including Ex Libris, in 2021. Ex Libris now operates within Clarivate's broader research and education technology portfolio. Its principal market remains academic and research libraries, where the company competes through an integrated suite spanning library operations, discovery, electronic resources, digital collections, research administration, and teaching support.

History

Ex Libris traces its roots to a Hebrew University of Jerusalem initiative begun in 1980. The project sought to build a library-management system that could process both Hebrew and Latin scripts, an important capability for the university and one that was not readily available in contemporary systems. The resulting ALEPH-100 system became the company's foundational product. In 1983, Yissum, the university's technology-transfer company, established Aleph-Yissum Ltd. to commercialize the software. Yohanan Spruch, the original developer of ALEPH, became the company's chief technology officer. Adoption expanded rapidly in Israel. Between 1983 and 1988, all eight Israeli universities acquired ALEPH and connected their systems in a network. In 1986, Azriel Morag founded Ex Libris Ltd. to market the technology outside Israel. The product gained international visibility during the early 1990s, including deployment across the Vatican's libraries in 1993. By 1995, approximately 200 libraries in 27 countries had purchased the system. That year, Aleph-Yissum merged with Ex Libris and was reorganized as Ex Libris Group, with Morag leading the combined organization. The company grew through both international sales and acquisitions. In 1997 it acquired Dabis, a German-speaking-market library-systems vendor. Venture-capital investment followed in 1998. In 2000 Ex Libris acquired rights to SFX, an OpenURL link-server product developed at the University of Ghent. SFX helped establish link resolution as a central workflow for connecting bibliographic records and citations to available full text, and OpenURL later became an information-industry standard. Ex Libris also launched MetaLib in 2000, giving libraries a way to search multiple information resources through a common interface. During the 2000s, the portfolio broadened beyond traditional integrated library systems. DigiTool, launched in 2002, addressed digital-asset management. Verde, introduced in 2004, managed electronic-resource acquisition and licensing. Primo, launched in the middle of the decade, became a discovery and delivery layer for library collections and scholarly resources. In 2006, Francisco Partners became the company's sole owner, and Ex Libris merged with Endeavor, the developer of the Voyager library system. This added Voyager to the company's established Aleph business. Further products addressed recommendation, preservation, and teaching workflows. The bX recommender service was launched in 2009, and Rosetta was introduced the same year as a digital-preservation and asset-management application. The company also moved decisively toward cloud delivery. In 2011, Ex Libris released Alma in collaboration with development partners, presenting it as a cloud-based library-services platform delivered as software as a service. Alma represented a major change from installed library systems and became a central element of the company's modern product strategy. Leganto, introduced in 2015, used the Alma platform to manage course reading lists and marked a move into teaching and learning workflows. Ownership changed again during this period. Leeds Equity Partners acquired Ex Libris in 2008, followed by Golden Gate Capital in 2012. In April 2015, Ex Libris acquired oMbiel and its campusM mobile-campus platform, extending its activity into broader education technology. ProQuest acquired Ex Libris in 2015. Following the transaction, Ex Libris also managed products associated with ProQuest's Workflow Solutions division, including Summon, 360 Link, and Intota-related services. The company entered research administration and research-intelligence markets in the late 2010s. In 2018 it worked with five United States universities on Esploro, a platform for institutional research services. It also acquired Research Research, which supplied information about funding opportunities and research policy in several English-speaking and European markets. In 2019, Ex Libris acquired RapidILL, a resource-sharing system originating at Colorado State University, and agreed to acquire Innovative Interfaces. Clarivate acquired ProQuest, including Ex Libris, in 2021. Ex Libris consequently became part of Clarivate's wider portfolio serving research institutions, publishers, and higher education. The company's continuing identity is centered on software for library operations and discovery, but its product scope now also includes digital preservation, electronic-resource workflows, teaching support, research management, resource sharing, funding intelligence, and related institutional services.

  • 2021

    Clarivate acquires ProQuest

    [1]

    Ex Libris becomes part of Clarivate through Clarivate's acquisition of ProQuest.

  • 2015

    ProQuest acquires Ex Libris

    [1]

    ProQuest acquires the company and integrates responsibility for additional library workflow products.

  • 2011

    Alma cloud library-services platform is released

    [1]

    Ex Libris releases Alma with university development partners, accelerating its shift toward SaaS delivery.

  • 2006

    Endeavor merges into Ex Libris

    [1]

    The company adds Endeavor and its Voyager library system to its portfolio.

  • 2000

    SFX and MetaLib expand the portfolio

    [1]

    Ex Libris acquires rights to SFX and launches MetaLib, extending its reach into link resolution and federated search.

  • 1995

    Ex Libris Group is formed

    [1]

    Aleph-Yissum merges with Ex Libris and reorganizes as Ex Libris Group.

  • 1986

    Ex Libris Ltd. is founded

    [1]

    Azriel Morag establishes Ex Libris Ltd. to market ALEPH internationally.

  • 1983

    Aleph-Yissum is established

    [1]

    Yissum establishes Aleph-Yissum Ltd. to commercialize the ALEPH library-management system.

  • 1980

    Hebrew University library-system project begins

    [1]

    A project at the Hebrew University of Jerusalem begins developing a system able to handle Hebrew and Latin scripts.

Products and positioning

A global enterprise software provider for academic, research, and national libraries, positioned around cloud library services, discovery, scholarly-resource workflows, digital preservation, and research management.

  • Cloud library-services platform · 2011

    Alma

    Alma is Ex Libris's cloud-based library-services platform. It supports core workflows such as acquisitions, cataloging, electronic and print-resource management, fulfillment, analytics, and library-system administration. Developed with university partners and released in the early 2010s, Alma was central to the company's transition from installed systems to software delivered as a service.

  • Library discovery service · 2007

    Primo

    Primo provides a user-facing discovery and delivery layer for library catalogs, institutional collections, and scholarly resources. It is designed to give students and researchers a single search experience while connecting results to availability, full text, and other library services.

  • Integrated library system · 1980

    Aleph

    Aleph is the original integrated library system associated with Ex Libris. It emerged from the Hebrew University project that required Hebrew- and Latin-script support and was subsequently adopted by libraries in Israel and many other countries.

  • Integrated library system

    Voyager

    Voyager is an integrated library system developed by Endeavor and added to the Ex Libris portfolio when Endeavor merged into the company in 2006. It served academic and research libraries alongside Aleph and later cloud-based platforms.

  • OpenURL link resolver · 2000

    SFX

    SFX is an OpenURL link-resolver product acquired from the University of Ghent. It helps libraries connect bibliographic citations and records with locally available full text and other services, contributing to the adoption of OpenURL-based scholarly-resource workflows.

  • Federated search · 2000

    MetaLib

    MetaLib enables simultaneous searching across multiple information resources, including library catalogs, journal databases, newspapers, and other services. It was part of Ex Libris's early expansion beyond the core integrated library system.

  • Digital asset management · 2002

    DigiTool

    DigiTool is a digital-asset management system designed for libraries and information centers. It supports organization and management of digitized and born-digital materials.

  • Electronic-resource management · 2004

    Verde

    Verde manages the acquisition, licensing, and administration of electronic resources. It addresses the operational complexity of subscription-based digital collections and library vendor agreements.

  • Scholarly recommendation service · 2009

    bX

    bX is a recommender service for scholarly articles. It uses usage and related-resource signals to suggest potentially relevant research materials to library users.

  • Digital preservation and asset management · 2009

    Rosetta

    Rosetta is a digital-preservation and asset-management platform for institutions responsible for maintaining long-term access to digital collections and research materials.

  • Reading-list management · 2015

    Leganto

    Leganto is a course reading-list management application built on the Alma platform. It connects instructors, library staff, and students around the selection, licensing, delivery, and maintenance of course materials.

  • Mobile campus platform

    campusM

    campusM is a mobile application platform for academic institutions. Ex Libris acquired it from oMbiel in 2015 as part of an expansion into education technology beyond conventional library systems.

  • Research-services platform · 2018

    Esploro

    Esploro is a research-services platform intended to help institutions manage and showcase research activity, outputs, expertise, and related workflows. Its development began with collaboration between Ex Libris and university partners.

  • Index-based discovery service · 2009

    Summon

    Summon is an index-based discovery service that provides a unified search experience across library collections and scholarly content. It became part of the Ex Libris-managed portfolio following the company's acquisition by ProQuest.

  • Link resolver and knowledge base

    360 Link

    360 Link supports linking users from citations and discovery results to library-licensed content and related services. It was among the ProQuest workflow products managed by Ex Libris after the 2015 acquisition.

  • Resource sharing

    RapidILL

    RapidILL is a resource-sharing and interlibrary-loan technology originally developed at Colorado State University. Ex Libris acquired it in 2019 to strengthen library collaboration and fulfillment workflows.

Brand decisions

  • 2021

    Integration into ClarivateM&A

    Background

    Clarivate pursued ProQuest to broaden its research, information, and education technology portfolio.

    Action taken

    Clarivate acquired ProQuest, including Ex Libris.

    Aftermath

    Ex Libris became part of Clarivate's research and education technology business.

  • 2018

    Expansion into institutional research servicesStrategy

    Background

    Universities increasingly sought systems to organize research information, outputs, expertise, and administrative workflows.

    Action taken

    Ex Libris collaborated with five United States universities on development of the Esploro research-services platform.

    Aftermath

    The initiative extended Ex Libris beyond library operations into research-management technology.

  • 2015

    Acquisition by ProQuestM&A

    Background

    Ex Libris had expanded from integrated library systems into discovery, workflow, digital preservation, and education technology.

    Action taken

    ProQuest acquired Ex Libris and assigned it management responsibility for additional workflow products, including Summon and 360 Link.

    Aftermath

    Ex Libris operated within ProQuest until ProQuest was acquired by Clarivate in 2021.

  • 2011

    Shift toward cloud-based library servicesStrategy

    Background

    Traditional library systems were commonly deployed on institutional infrastructure, while libraries increasingly sought shared, continuously updated services.

    Action taken

    Ex Libris worked with university development partners to release Alma as a SaaS library-services platform.

    Aftermath

    Alma became a central offering and marked the company's strategic movement toward cloud delivery.

Recent events

  • 2021

    Clarivate acquires ProQuest and Ex Libris[1]

    M&A

    Clarivate completed its acquisition of ProQuest, bringing Ex Libris into Clarivate's research and education technology portfolio.

  • 2019

    Ex Libris acquires RapidILL[1]

    M&A

    The company acquired RapidILL, a resource-sharing system developed at Colorado State University.

  • 2019

    Ex Libris agrees to acquire Innovative Interfaces[1]

    M&A

    Ex Libris announced an agreement to acquire Innovative Interfaces, another library-technology provider.

  • 2018

    Ex Libris expands into research services with Esploro collaboration[1]

    Product launch

    The company worked with five United States universities on development of the Esploro research-services platform.

  • 2018

    Ex Libris acquires Research Research[1]

    M&A

    Ex Libris acquired the organization known as Research Research, adding intelligence on research funding opportunities and research policy.

  • 2015

    Ex Libris acquired by ProQuest[1]

    M&A

    ProQuest acquired Ex Libris, with Ex Libris also taking responsibility for several ProQuest workflow and library products.

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