DOAJ and the ISSN International Centre signed a Memorandum of Understanding in December 2015. The purpose of this agreement is to promote both parties and exchange metadata about quality, open access journals in the framework of ROAD service. The benefit of this working agreement is to give an insight about trusted peer-reviewed open access journals. Being indexed in the DOAJ means that the journals considered adhere to high levels of quality regarding best practices.

GS1 is an international organisation which defines the specifications for barcodes, among other things. The agreement established between GS1 and the ISSN International Centre allows ISSN numbers to be used in barcodes according to the EAN13 specifications, with the prefix 977 reserved for serial publications.

The International Federation of Library Associations and Institutions (IFLA) is the leading international body representing the interests of library and information services and their users. It is the global voice of the library and information profession.

The ISSN International Centre is an IFLA member, and participates on many of the IFLA committees.

The Director of the ISSN International Centre is the secretary of the IFLA Serials and Other Continuing Resources Standing Committee, and the ISSN International Centre Project Officer is the chair of the IFLA PRESSoo Review Group. ISSN staff are liaison members in the Cataloguing Section, and in two Committee on Standards subgroups: the Bibliographic Conceptual Model Review Group, and the ISBD Review Group. They are currently participating in the working group for the revision of the IFLA Standards Procedure Manual, and in the ISBD for Manifestation Task Force.

ISNI (ISO 27729) is the certified global standard number for identifying contributors to creative works and those active in their distribution. The ISSN International Centre is a member of ISNI International Agency and as such, makes use of existing ISNI to complete ISSN records with identifiers assigned to issuing bodies for example. This practice is also extending to ISSN National Centres thus providing interoperability between ISSN and ISNI.

Latindex represents a major initiative launched by the National Autonomous University of Mexico (UNAM) in 1997 to promote the visibility and dissemination of Ibero-American scientific journals, and improve the quality of journals published in the region. Latindex and the ISSN International Centre signed a Memorandum of Understanding in September 2015. The purpose of this three-year agreement is to promote both parties and exchange metadata about serials.

Founded in 1939, the National Information Standards Organization (NISO) is an industry-based, nonprofit, non-governmental association. NISO is accredited by the American National Standards Institute (ANSI) to identify, develop, maintain, and publish voluntary, consensus-based standards for managing information.

The ISSN International Centre is a NISO voting member: https://www.niso.org/members/issn-international-centre

The ISSN International Centre thus supports NISO’s objective to foster the development and maintenance of standards that facilitate the creation, persistent management, and effective interchange of information so that it can be trusted for use in research and learning.

The Publications Office of the European Union is the official provider of publishing services for all institutions, bodies and agencies of the European Union. The Office has supported the ISSN International Centre for several years by contributing financially to its budget. The Publications Office of the European Union assigns and manages ISSNs for publications of the European institutions.