Government, Research, & Educational Organizations
U.S. Department of Energy, Windows Program
Lawrence Berkeley National Laboratory, Windows and Daylighting Program
Efficient Windows Collaborative
Union of Concerned Scientists - Energy Links
International Energy Agency Solar Heating and Cooling Programme—Task 21. Daylighting)
Building America Program -- DOE
Building America Program -- FSEC
Professional or Trade Organizations
Architectural Manufacturers Association of Florida
National Fenestration Rating Council (NFRC)
American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (ASHRAE)
ASHRAE TC 4.5 on Fenestrations
Sustainable Energy Information from CREST
Solstice Sustainable Energy Organizations
National Glass Association (NGA)
Window and Door Manufacturers Association
American Architectural Manufacturers Assoc.
American Institute of Architects
Energy & Environmental Buildings Association