| American Antiquarian Society: An independent research library focusing on American history, literature, and culture through 1876. |
| American Association for State and Local History: Provides leadership, service and support for the preservation and interpretation of American state and local history. |
| American Association of the History of Medicine: An academic society devoted to the history of medicine and all aspects of health. |
| American Historical Association: The professional organization for all historians. |
| American Jewish Historical Society: The organization is interested in history of American Jews. |
| American Printing History Association: Founded in 1974 to encourage the study of printing history and its related arts and skills, including calligraphy, typefounding, typography, papermaking, bookbinding, illustration, and publishing. |
| Archivists for Congregations of Women Religious: ACWR - a roundtable of the Society of American Archivists, was created to address the specialized needs of religious archives. |
| Army Historical Foundation: Dedicated to the promotion and preservation of the history and traditions of the American soldier. |
| ASECS American Society for Eighteenth-Century Studies: An interdisciplinary group dedicated to the advancement of scholarship in all aspects of the period from the later seventeenth through the early nineteenth century. |
| Atomic Heritage Foundation: A non-profit dedicated to preservation and interpretation of the Manhattan Project and Atomic Age. Information about historic properties, museum exhibits, publications, and documentary films. |
| Constitution Society: Comprehensive collection of constitutional materials, including books, articles, and tools. |
| Discovery Expedition: Nonprofit organization rediscovering the legacy of Lewis and Clark through reenactments and other living history programs. Site includes expedition history, photos and other details of bicentennial activities, and other news and information. |
| Florida Lighthouse Association: A not-for-profit organization dedicated to the preservation of Florida's lighthouses and maritime heritage. |
| Fort Smith Historical Society Inc.: A non-profit organization that locates, identifies, collects and preserves historical data; records oral history; and publishes source materials and historical articles of the Fort Smith area. |
| Foundation for Ancient Research and Mormon Studies: A collection of writings, studies, and information about research on The Book of Mormon and other manuscripts at Brigham Young University. |
| Friends of the Little Bighorn Battlefield: Website includes historical background, board of directors, membership, photos and complete coverage of the Indian Memorial. |
| Heritage Preservation Association: Organization acting to protect and preserve the symbols, culture and heritage of the American South. |
| Huguenot Society of America: Promotes the cause of religious freedom, perpetuates the memory of the Huguenot settlers in America, and commemorates the principal events in Huguenot history. |
| Isle Royale Natural History Association: A non-profit educational organization promotes, in partnership with the National Park Service, the public's understanding, appreciation, and enjoyment of Michigan's Isle Royale National Park and Keweenaw National Historical Park. |
| Labor and Working Class History Association: An organization of scholars, union members, students, and citizens promoting a wider understanding of the history of working class people, their communities, and their organizations in the United States. |
| Lewis and Clark Bicentennial Council: Commemorating the legacy of the Lewis and Clark expedition of 1803-1806. |
| Lewis and Clark Trail Heritage Foundation: The Foundation's mission is to honor the remarkable historic legacy of Lewis and Clark through research, education, preservation, promotion, and coordination. |
| Living History Farms: A non-profit, historical, educational foundation located in Urbandale, Iowa, USA. |
| Maryland Association of History Museums: An alliance of historical, cultural, and educational institutions created to speak for and to enhance the professionalism and effectiveness of all organizations that collect, hold, interpret and protect the cultural and material heritage of the State. |
| Montana Historical Society: Preserve for future generations representative selection of all historic resources (art, records, books, photographs, oral histories, artifacts, journals, sites, buildings) important to an understanding of Montana history. |
| National Women's History Project: Regarded as "the clearinghouse" for U.S. women's history information and resources, the NWHP site provides excellent links to biography-rich sites for student researchers, program ideas for all constituencies, a downloadable "Test Your Women's History I.Q." quiz sheet, and other delights. |
| Navy & Marine Living History Association: Founded in 1998 as a non-profit organization to promote education, research, and preservation of America's rich national heritage of the naval services. |
| Organization of American Historians (OAH): Learned society devoted to the study of American history. Publisher of the Journal of American History, the OAH Newsletter, the OAH Magazine of History and Talking History Radio Program. |
| Pere Marquette Historical Society, Inc.: Comprehensive historical information on the Pere Marquette Railroad, which served Michigan, Ontario, Indiana Illinois, Ohio and Wisconsin. Contains maps, equipment rosters, timelines and photos of preserved equipment. |
| Preservation of American Hellenic History: A national umbrella website coordinating local, community organizations for the preservation of Greek (Hellenic) American history. |
| Southwest Oral History Association: Founded in 1981 to serve practitioners of oral history in Arizona, southern California, Nevada, New Mexico and contiguous areas. Site provides publications list, meetings and workshops, information, and constitution. |
| The Alamo Society: International organization of professional and amateur historians interested in one or more facets of the Alamo of history and popular culture. Site provides journal articles, links, book reviews, and meeting info. |
| The American Association for History and Computing (AAHC): Dedicated to linking the study of history with computer technology, with annual meeting and prizes, membership, journal archives, constitution, officers and tenure guidelines. |
| The Gilder Lehrman Institute of American History: The Gilder Lehrman Institute of American History promotes interest in history through lectures, exhibitions, teacher seminars, prizes and fellowships, and electronic resources including an online historical textbook and annotated historical documents. |
| The Independence Hall Association: A nonprofit, tax-exempt organization founded in 1942 to spearhead the creation of Independence National Historical Park. Now develops and publishes web content dealing with Philadelphia and 18th-century American history. |
| The Jefferson Legacy Foundation: A non-profit, non-partisan organization which promotes education about Thomas Jefferson through film, web, library, outreach, and numerous support programs. |
| The National Coordinating Committee for the Promotion of History: Advocacy group provides current information on legislation and legislative proposals, hearings, and federal policy issues of concern to historians, archivists, librarians, and the general public. |
| The Society of Southwest Archivists: Serves over 600 special collections librarians, archivists, preservationists, conservators, and records managers in Arizona, Arkansas, Louisiana, Oklahoma, New Mexico, and Texas. |
| The Tejano Association for Historical Preservation: A non-profit organization formed in 1989 to identify and preserve buildings and sites that have historical or archaeological significance to the Hispanic, early Texas, French, and native/indigenous cultures. |
| The White House Historical Association: Tas tours, lesson plans, official White House Christmas ornaments, books, and gifts. |
| Thomas Paine National Historical Association: Founded in 1884. Publishes a scholarly journal and provides information on the Revolutionary activist, including a full-text archive of many of his works, as well as membership information, and links to related material. |
| Three Societies for Men with Revolutionary Ancestors: Explanation of the history of and relationships between the Society of the Cincinnati, the Society of the Sons of the Revolution, and the Sons of the American Revolution. |
| US Corps of Topographical Engineers: History and techniques of the Corps, emphasizing the Mexican War, western expansion and the Civil War. |
| Wisconsin Lutheran College Student History Association: Organization for students interpreting history from a Christian perspective. Meeting, field trip, and other event information; pictures and member listing. |
Classical
