NYC Landmarks Preservation Commission
NYC Department of Buildings
New York Association of Real Estate Managers
Institute of Real Estate Management
New York Building Managers Association
Superintendents Technical Association
Scandinavian-American Building Manager's Guild
U.S. Green Building Council
New York Landmarks Conservancy
National Roofing Contractors Association
Slate Roofing Contractors Association
Habitat Magazine
The Cooperator
National Metalizing Association
Brick Industry Association
Haverstraw Brick Museum
Friends of Terra Cotta
Adventures in Preservation
Association of Preservation Technologies
Preservation Trades Network
Society for Industrial Archeology
Slate Valley Museum