Organizations
| Beckenham & Bromley Branch of the Historical Association | |
| Fundación Histórica Tavera - facilita el acceso a las fuentes documentales manuscritas e impresas, y a los repertorios bibliográficos de utilidad para la historia ibérica, iberoasiática e iberoamericana. | |
| Historical Renaissance - dedicated to digitizing history and sharing culture. | |
| Institute of Urban History - Stockholm, Sweden | |
| International Association of Labour History Institutions (IALHI) - brings together institutions holding archival, library and/or audiovisual collections in the field of labor history all over the world. | |
| International Churchill Societies - working to study and preserve interest in Sir Winston Churchill's life and role in the critical struggle of our time. | |
| Napoleonic Association - formed by, and for people with a common interest in the history of the period from the French Revolution through to the battle of Waterloo. | |
| Organization of American Historians | |
| Woodstock Nation Foundation Inc. - non-profit organization dedicated to the preservation of Max Yasgur's farm in Bethel, New York. | |