Digital preservation of scholarly literature and primary sources is a global responsibility that requires the cooperation of many individuals and organizations. We are deeply engaged with the digital preservation community on a variety of projects, ensuring that we both contribute our expertise and learn from the efforts of others. If you’re interested in collaborating on preservation research or projects, please contact our team.

ARK Alliance
Supporting Organization

Archival Resource Keys (ARKs) serve as persistent identifiers, or stable, trusted references for information objects. The ARK Alliance is an open global community supporting the ARK infrastructure on behalf of research and scholarship. Karen Hanson, Portico’s Lead Research Developer, serves on its Technical Working Group.

Alliance for Permanent Access
Liaison Member

The Alliance is working towards permanent access to the records of science. The Alliance’s international membership includes strategic partners from the research community, libraries, publishers, and digital preservation organizations.

Association of American Publishers
Member (as ITHAKA)

The Association of American Publishers represents the nation’s major commercial, educational and professional publishing houses, as well as scholarly societies, university presses, and smaller and non-profit publishers. As part of ITHAKA, Portico is also a member of the Association’s Professional and Scholarly Publishing division.

Association of Learned and Professional Society Publishers
Associate Member

The Association of Learned and Professional Society Publishers is the international trade association for not-for-profit publishers and those who work with them.

Full Member

CrossRef is a not-for-profit membership association whose mission is to enable easy identification and use of trustworthy electronic content by promoting the cooperative development and application of a sustainable infrastructure.

Digital Preservation Coalition
Associate Member

The Digital Preservation Coalition is a not-for-profit membership organization whose primary objective is to raise awareness of the importance of the preservation of digital material and the attendant strategic, cultural, and technological issues. Its vision is to make our digital memory accessible tomorrow.

National Information Standards Organization (NISO)
Member (as ITHAKA)

NISO, the National Information Standards Organization, a not-for-profit association accredited by the American National Standards Institute (ANSI), identifies, develops, maintains, and publishes technical standards to manage information in our changing and ever-more digital environment.
John Meyer, Portico’s director of data technology, serves as a member of the NISO Standardized Markup for Journal Articles Working Group (NLM Tag Set); and Amy Kirchhoff, Portico’s archive service product manager, serves as a member of the NISO Protocol for Exchanging Serial Content working group.

Open Access Scholarly Publishing Association (OASPA)

OASPA represents a community of scholarly publishers and related organizations with the mission of developing and disseminating publishing solutions that advance Open Access, preserve the integrity of scholarship, and promote best practice. The organization also works to educate the research community and greater public on the benefits of Open Access content and related initiatives.

Open Preservation Foundation
Affiliate Member

The Open Preservation Foundation is an international not-for-profit membership organization that enables collaboration in technology, knowledge, and advocacy and alliances to support their members in developing their digital preservation practice. Karen Hanson, Lead Research Developer at Portico, serves on the OPF product board, which approves the organization’s development priorities, provides feedback on strategic changes, and influences the adoption of new tools. Karen also contributes improvements to JHOVE, an open source file format identification, validation, and characterization tool that is a part of OPF’s toolset.

Society for Scholarly Publishing
Supporting Member

The mission of the Society for Scholarly Publishing is to advance scholarly publishing and communication and the professional development of its members through education, collaboration, and networking among individuals in the field.

Software Preservation Network

The Software Preservation Network (SPN) is an organization established to advance software preservation through collective action. Karen Hanson, Portico’s Lead Research Developer, serves on its metadata working group and contributed to its Software Metadata Recommended Format Guide.

STM – the International Association of Scientific, Technical, and Medical Publishers

STM is an international association of 150 scientific, technical, medical, and scholarly publishers collectively responsible for 66% of the global annual output of research articles, over half the active research journals and the publication of tens of thousands of print and electronic books, reference works, and databases.


With a membership of approximately 500 organizations, a third of them based outside the UK, the UKSG engages a broad cross-section of people concerned with the publication, distribution, and use of e-resources.