An international network of not-for-profit and participative organizations with a commitment to architecture, construction, urbanism and the conservation of historical heritage. Includes charter, minutes and membership.

Cornell University's resource for US preservationists includes listings of job opportunities and conferences, along with a directory of web-sites related to historic preservation.

Independent organization of friends and alumni of the Columbia University Historic Preservation Program.

A unique charity working to maintain and promote fine craft and design skills in the heart of London's historic community of Clerkenwell

Worldwide organization focused solely on historic ironwork.