The Humanitarian Encyclopedia was conceived as a partnership project. Many emerging and traditional stakeholders from academia, humanitarian organisations, and humanitarian support groups have been approached to engage in identification of key terms and concept selection, co-creation and dissemination as well as governance of the project. Multiple humanitarian donors and sponsors have supported the project financially during its development and implementation phases.

Since 2024, the project has been steered by a consortium of humanitarian practice and research partners, including the Sphere, SEEDS (Sustainable Environment and Ecological Development Society) and the Asian Disaster Reduction and Response Network (ADRRN) Localisation Hub, University of Granada Department of Linguistics, and the Geneva Centre of Humanitarian Studies. Current partners are listed below in alphabetical order.