- African American Heritage Preservation Foundation (AAHPF)
- American Association for State and Local History (AASLH)
Annual Meeting - American Battlefield Trust
Annual Conference
The Civil War Trust
The Revolutionary War Trust - American Conservation Experience (ACE)
- American Cultural Resources Association (ACRA)
Annual Conference - American Historical Association (AHA)
- The American Society for Ethnohistory
- Americans for the Arts
Annual Convention - Archives & Museum Informatics
Museums and the Web - Annual international conference - Asian & Pacific Islander Americans in Historic Preservation (APIAHiP)
- The Association for Gravestone Studies (AGS)
Annual Conference - The Association for Preservation Technology International (APT)
Annual Conference - Canadian Heritage Information Network
- Council on America's Military Past, USA, Inc. (CAMP)
Annual Conference - Early American Industries Association (EAIA)
Annual Meeting - Environmental Protection in Indian Country
(previously American Indian Environmental Office Tribal Portal)
U.S. Environmental Protection Agency - George Wright Society
Biennial Conference - Historic Districts
"A Letter to George: How to Keep the Preservation Commission Out of Court and Avoid Being Sued"
Advice to preservation committee appointees, by Robert E. Stipe - International Centre for the Study of the Preservation and Restoration of Cultural Property (ICCROM)
- The International Committee for the Conservation of the Industrial Heritage (TICCIH)
- International Council on Monuments and Sites (ICOMOS)
U.S. National Committee of the International Council on Monuments and Sites (ICOMOS-USA)
World Heritage USA Supports the work of ICOMOS-USA
World Heritage USA Symposium - International Foundation for Cultural Property Protection (IFCPP)
Annual Conference - International Maritime History Association (previously International Maritime Economic History Association)
- Latinos in Heritage Conservation
- The Lawyers' Committee for Cultural Heritage Preservation (LCCHP)
- League of Historic American Theatres (LHAT)
Annual Conference and Theatre Tour - Main Street America
National Main Street Center, a subsidiary of the National Trust for Historic Preservation - National Alliance of Preservation Commissions (NAPC)
Bi-Annual Forum - National Association of Environmental Professionals (NAEP)
Annual Conference - National Association of Tribal Historic Preservation Officers (NATHPO)
Annual Meeting - National Barn Alliance
- National Coalition for History (NCH)
- National Collaborative for Women's History Sites (NCWHS)
- National Conference of State Historic Preservation Officers (NCSHPO)
Annual Meeting - National Congress of American Indians (NCAI)
- National Council on Public History (NCPH)
Annual Meeting - National Housing and Rehabilitation Association (NH&RA)
Affordable Housing, Historic Rehabilitation, and Case Studies
Annual Meeting - The National Maritme Historical Society
Annual Meeting
Maritime Heritage Conference - National New Deal Preservation Association
- National Parks Conservation Association (NPCA)
- National Park Service (NPS)
CRM: The Journal of Heritage Stewardship
Preserve America Grants - National Public Housing Museum
- National Trust for Canada
Annual Conference - National Trust for Historic Preservation (NTHP)
Preservation Month: May
Annual Conference - Native American Sites
- Organization of American Historians (OAH)
Annual Meeting - Partners for Sacred Places
- Popular Culture Association (PCA)
(previously Popular Culture Association and American Culture Association PCA/ACA) - Preservation Action (PA)
Lobby Day - Preservation Directory
- Preservation Roundtable
- Rainbow Heritage Network Recognizing and preserving LGBTQ sites, history, and heritage
- Sacred Sites International Foundation
- Society of American Archivists
Annual Meeting - Society for History in the Federal Government (SHFG)
Annual Meeting - The Society for Military History
- Society for the History of Technology (SHOT)
Annual Meeting - Society for the Preservation of Old Mills (SPOOM)
Annual Conference - Udall Foundation
- U.S. Forest Service, U.S. Department of Agriculture (USDA)
Cultural Heritage - Victorian Society in America (VSA)
Annual Meeting
American Summer School
London Summer School - Women in Preservation
- World Monuments Fund (WMF)
