- ACRL: Association of College and Research Libraries
The Association of College and Research Libraries (ACRL), a division of the American Library Association, is a professional association of academic librarians and other interested individuals.
- ALA: The American Library Association
The ALA Constitution states the purpose of ALA as, “The object of the American Library Association shall be to promote library service and librarianship.”
- ARL: Association of Research Libraries
ARL is a nonprofit organization of 123 research libraries at comprehensive, research-extensive institutions in the US and Canada that share similar research missions, aspirations, and achievements.
- ARLIS/NA: Art Libraries Society of North America
ARLIS/NA is a dynamic organization of over 1,000 individuals devoted to fostering excellence in art and design librarianship and image management.
- ASI: The American Society for Indexing
ASI is the only professional organization in the United States devoted solely to the advancement of indexing, abstracting, and database building.
- ASIS&T: American Society for Information Science and Technology
The Information Society for the Information Age.
- CNI: The Coalition for Networked Information
The Coalition for Networked Information (CNI) is an organization dedicated to supporting the transformative promise of networked information technology for the advancement of scholarly communication and the enrichment of intellectual productivity.
Inspired in part by the social dynamics of distributed open source projects, Code4Lib is an informal online social and professional network of library technologists, embodying values of transparency, cooperation, and pragmatic problem solving.
A nonprofit association whose mission is to advance higher education by promoting the intelligent use of information technology.
- ELUNA: Ex Libris Users of North America
North American User Group for users of Ex Libris products.
- IFLA: International Federation of Library Associations
A worldwide, independent organization created to provide librarians around the world with a forum for exchanging ideas, promoting international cooperation, research and development in all fields of library activity.
- IGeLU: The International Group of Ex Libris Users
IGeLU provides an open and transparent organisation for users of all Ex Libris products.
- ISKO: International Society for Knowledge Organization
The premier international scholarly society devoted to the theory and practice of knowledge organization.
- LITA: Library & Information Technology Association
The Library and Information Technology Association is a coalition of members and staff joining together to carry forward LITA's mission and strategic initiatives through internal governance and wide spread representation.
- LLAMA: Library Leadership & Management Association
The mission of the Library Leadership and Management Association is to encourage and nurture current and future library leaders, and to develop and promote outstanding leadership and management practices.
- MLA: Music Library Association
MLA is the professional organization in the United States devoted to music librarianship and all aspects of music materials in libraries.
- NASIG: North American Serials Interest Group
The North American Serials Interest Group, Inc. (NASIG) is an independent organization that promotes communication and sharing of ideas among all members of the serials information chain - anyone working with or concerned about serial publications.
- NMC: The New Media Consortium
The New Media Consortium (NMC) is an international 501(c)3 not-for-profit consortium of nearly 300 learning-focused organizations dedicated to the exploration and use of new media and new technologies.
- NYLA: New York Library Assocation
The mission of the NYLA is to lead in the development, promotion and improvement of library and information services and the profession of librarianship in order to enhance learning, quality of life, and equal opportunity for all New Yorkers.
- SAA: Society of American Archivists
Serves the educational and informational needs of its members and provides leadership to help ensure the identification, preservation, and use of the nation's historical record.
- SLA: Special Libraries Association
The Special Libraries Association (SLA) is a nonprofit global organization for innovative information professionals and their strategic partners.
- SUNYLA: State University of New York Librarians Association
The SUNY Librarians' Association promotes the professional development and collaboration of library personnel across SUNY in order to advance library service(s) to our campuses and the people of New York State.
- VRA: Visual Resources Association
The Visual Resources Association is a multi-disciplinary organization dedicated to furthering research and education in the field of image management within the educational, cultural heritage, and commercial environments.