- Historic Preservation Advocacy Guide
Wisconsin Historical Society
National and Regional Preservation Organizations
- Advisory Council on Historic Preservation (ACHP)
- American Cultural Resources Association (ACRA)
- Bureau of Indian Affairs (BIA)
Tribal Leaders directory - Main Street America
Advocacy in Focus free online course - National Park Service (NPS)
Tribal Historic Preservation Offices (THPO) directory - National Trust for Historic Preservation
Action Center
Issues in Preservation
Preservation Leadership Forum - National Association of Tribal Historic Preservation Officers (NATHPO)
- National Conference of State Historic Preservation Officers (NCSHPO)
- Preservation Action
International Preservation Organizations
- International Council on Monuments and Sites (ICOMOS)
U.S. National Committee of the International Council on Monuments and Sites (ICOMOS-USA)
World Heritage USA - World Monuments Fund
Statewide and Regional Preservation Organizations*
- Alabama Trust for Historic Preservation
- Preservation Alaska: The Alaska Association for Historic Preservation
- Arizona Preservation Foundation
- Preserve Arkansas
- California Preservation Foundation
- Colorado Preservation, Inc.
- Preservation Connecticut (previously Connecticut Trust for Historic Preservation)
- D.C. Preservation League
- Preservation Delaware
- Florida Trust for Historic Preservation
- The Georgia Trust for Historic Preservation
- Guam Preservation Trust
- Historic Hawai'i Foundation
- Preservation Idaho
- Landmarks Illinois
- Indiana Landmarks
- Preservation Iowa (previously Iowa Historic Preservation Alliance)
- Kansas Preservation Alliance
- Preservation Kentucky
- Louisiana Trust for Historic Preservation
- Maine Preservation
- Preservation Maryland
- Preservation Massachusetts
- Michigan Historic Preservation Network
- Rethos: Places Reimagined (previously Preservation Alliance of Minnesota)
- Mississippi Heritage Trust
- Missouri Preservation (previously Missouri Alliance for Historic Preservation)
- Preserve Montana (previously Montana Preservation Alliance)
- Nebraska has no statewide organization*
- Preserve Omaha (previously Restoration Exchange Omaha)
- Nevada Preservation Foundation
- Historic New England
- The New Hampshire Preservation Alliance
- State of New Jersey, New Jersey Historic Trust
- Preservation New Jersey
- New Mexico Department of Cultural Affairs, New Mexico Historic Preservation Division
- Preservation League of New York State
- Preservation North Carolina
- North Dakota has no statewide organization* (previous organization Preservation North Dakota)
- Preservation Ohio
- Preservation Oklahoma, Inc.
- Restore Oregon
- Preservation Pennsylvania
- Preserve Rhode Island
- Preservation South Carolina
- South Dakota State Historical Society
- Association for the Preservation of Tennessee Antiquities
- Tennessee Preservation Trust
- Preservation Texas
- Preservation Utah
- Preservation Trust of Vermont
- United States Virgin Islands
St. John Historical Society
St. Thomas Historical Trust - Preservation Virginia
- Washington Trust for Historic Preservation
- Preservation Alliance of West Virginia (PAWV)
- Wisconsin Trust for Historic Preservation
- Alliance for Historic Wyoming
*For a directory of all state, territory, and the District of Columbia State Historic Preservation Officers (SHPO) and/or if there is no statewide or regional preservation organization listed above, see the National Conference of State Historic Preservation Officers (NCSHPO)