The Dutch Barn Preservation Society
- A not-for-profit educational organization for the study and preservation of New World Dutch barns. Prints a newsletter twice a year with the latest findings on Dutch barns.
- http://www.dutchbarns.org/

Colorado Office of Historic Preservation and Archaeology
- Comprehensive information about the architectural patrimony of the State of Colorado. History, grant, styles, planning information.
- http://www.coloradohistory-oahp.org/

Old Sixth Ward Historic District Houston
- A non-profit organization with the mission of preserving this district in Houston, Texas. Includes history, historic photographs and walking tour.
- http://www.old6ward.org

Historic City of Jefferson
- Dedicated to the preservation and rehabilitation of historic structures in Jefferson City MO. Officers, projects, activities and heritage fund.
- http://www.historiccityofjefferson.org/

Goodsprings Historical Society
- Aims to preserve the historical and natural resources of the Goodsprings Township in southern Clark County, Nevada, by educating the public about its environment, archeology and history.
- http://goodsprings.org

San Buenaventura Conservancy
- Historic preservation organization aiming to protect endangered historic buildings in Ventura, California. Explains its activities and includes photographs and descriptions of historically and architecturally significant buildings.
- http://www.sbconservancy.org

Yellowstone Historic Preservation Board
- Promotes, preserves and protects the heritage and historic architecture of Yellowstone County, Montana. Includes projects, programs, virtual tours and photographs of National Register sites.
- http://www.yhpb.org

National Park Service: Preservation
- Explains the preservation work of the service in America’s nearly 400 national parks, including the Historic American Buildings Survey.
- http://www.nps.gov/history/preservation.htm

Natchitoches Historic Foundation
- Aims to develop and improve the area’s tourist attractions, and encourage historical research and preservation. Includes information on the oldest continually occupied settlement in the Louisiana Purchase Territory.
- http://www.historicfoundation.com/

Lathrup Village Historical Society
- Dedicated to preserving structures in Lathrup Village, Michigan's National Historic District. Includes historical information from archives, event calendars, announcements, and membership information.
- http://lvhistoricalsociety.home.comcast.net

Historic Fredericksburg Foundation
- Aims to preserve, protect and revitalize the distinctive historic environment of the Fredericksburg area. Aims and activities, events and tours, projects, newsletter and board of directories.
- http://www.hffi.org/

Preservationists of Michigan City, Indiana
- Highlights current projects for this not-for-profit organization aiming to educate and encourage the preservation of homes and neighborhoods. Includes a meeting schedule.
- http://preservationists.org/

Charleston Illinois Historic Preservation Commission
- Describes the historic preservation program created in 2004 by city ordinance, and the activities of the commission.
- http://www.ux1.eiu.edu/~rlwise/Hisprs/Citypages/cityhome.html

Vallejo Architectural Heritage Foundation
- A nonprofit organization dedicated to architectural preservation, education and advocacy in Vallejo, California. News, events, projects and online tours of historic properties.
- http://www.historicvallejo.org

New Jersey Lighthouse Society
- A non-profit, educational corporation dedicated to the history and preservation of lighthouses, particularly in the New Jersey, Delaware Bay and New York Harbor areas.
- http://www.njlhs.org/

The Preservation Education Institute
- Offers workshops in Vermont, US, to lay people and professionals pertaining to historic restoration techniques and technology, as well as modern alternatives.
- http://www.preservationworks.org/

Merrimack Valley Preservation Group Incorporated
- MVPG, Inc. is a non-profit organization dedicated to the preservation of the history and landscapes of the Massachusetts communities located along the banks of the Merrimack River. Includes news and activities.
- http://mvpginc.org

Historic Longmont Foundation
- Aims to enhance, elevate and promote the preservation of the Longmont, Colorado area historical, architectural, visual and environmental heritage through advocacy, education, intervention, and alliance building. Includes a history of Longmont.
- http://www.historiclongmont.org/

Palm Beach Preservation Foundation
- A private, nonprofit membership organization dedicated to the preservation of the historic architecture and cultural heritage of Palm Beach, Florida. Mission, activities and events.
- http://www.palmbeachpreservation.org

Preservation Alliance of West Virginia
- Statewide grassroots organization dedicated to the support and promotion of historic preservation.
- http://www.pawv.org/

Providence Preservation Society
- A non-profit, advocacy organization, offering historic house, garden and walking tours of Providence, Rhode Island, as well as technical advice to owners of historic buildings.
- http://www.ppsri.org/

ARCH
- Fort Wayne, Indiana's not-for-profit historic preservation organization dedicated to the preservation of historic structures.
- http://www.archfw.org/

Historic New England
- Aims to preserve, interpret and collect buildings, landscapes and objects reflecting New England life from the 17th century to the present. It owns and operates 35 historic properties.
- http://www.historicnewengland.org/

National Conference of State Historic Preservation Officers (NCSHPO)
- Professional association of the State government officials who carry out the national historic preservation program. Includes news, preservation issues and meeting information.
- http://www.ncshpo.org/

The Boston Preservation Alliance
- Collective of over 50 organizations and individuals who advocate the preservation of Boston's historic buildings, communities and landscapes.
- http://www.bostonpreservation.org/

Advisory Council on Historic Preservation
- Promotes protection and enhancement of America's historical resources.
- http://www.achp.gov/

Hartford Preservation Alliance
- Nonprofit organization that promotes, preserves and protects historical architecture in Hartford, Connecticut.
- http://www.hartfordpreservation.org/

The League of Historical Societies of New Jersey
- Supports the preservation of history in the state of New Jersey.
- http://www.lhsnj.org

New York Preservation Archive Project
- Aims to protect the endangered narratives of historic preservation in New York through public programs, outreach, celebration and the creation of public access to information.
- http://www.nypap.org

Loudoun Restoration and Preservation Society
- LRPS devotes itself to preserving the best of the heritage of Loudoun County, Virginia. Annual August Court Days, historic plaques, grants, projects and membership.
- http://www.preserveloudoun.org

Shenandoah Valley Rural Heritage Foundation
- The SVRHF is a non-profit organization formed to promote the preservation of historic and culturally significant properties in rural areas of the Shenandoah Valley.
- http://www.svrhf.org

Old Island Restoration Foundation
- Dedicated to preserving the architectural and cultural history of Key West Florida via the Oldest House Museum, Mallory Square Museum, grants and scholarships. Details of museums, programs and renting museum gardens for events.
- http://www.oirf.org/

Houston Mod
- A non-profit membership organization dedicated to promoting knowledge, appreciation and preservation of modern architecture and design in Houston and Texas. Mission, events, projects and news.
- http://www.houstonmod.org

Recent Past Preservation Network
- Promotes preservation education and advocacy of recently modern architecture, landscape architecture and urbanism. Includes mailing list, membership news and benefits, how to help, features on endangered sites, and photos.
- http://www.recentpast.org/

Preservation Easement Trust
- A nonprofit organization dedicated to preserving historic buildings and sites through the acceptance and responsible management of historic preservation conservation easements.
- http://www.preservationeasement.org

Idaho City
- Idaho's Historical Preservation Commission presents images and descriptions of buildings on the national historic register in Idaho City, Idaho, and a calendar of events.
- http://idahocity.net

Friends of Historic Preservation
- Presents the historic resources and cultural history of Freetown, Massachusetts.
- http://www.assonetriver.com/preservation/

Oracle Historical Society
- Dedicated to the restoration and preservation of historic buildings and artifacts that reflect the history of Oracle, Arizona.
- http://www.oraclehistoricalsociety.org

Mojave Desert Heritage and Cultural Association
- A nonprofit volunteer organization devoted to preserving the natural and cultural history of the Mojave Desert regions.
- http://mdhca.org/

Grand Canyon Historical Society
- A non-profit corporation for the study and preservation of historical sites, photographs and artifacts of Grand Canyon and surrounding areas; and restoration of sites and buildings at Grand Canyon National Park.
- http://www.grandcanyonhistory.org/

Mosaic Templars Building Preservation Society
- Celebrates Black achievement in Arkansas and seeks to preserve African American history, heritage, organizations and enterprises in Little Rock's downtown business district on Ninth Street and Broadway.
- http://www.mosaictemplarspreservation.org

National Architectural Trust
- A tax-exempt historic preservation and education organization dedicated to preserving distinctive properties located in National Register Historic Districts, primarily through the Federal Historic Preservation Tax Incentive Program.
- http://www.natarchtrust.org

Victorian Preservation Association of Santa Clara Valley
- A non-profit organization for those interested in the older buildings of this community. Gallery of the houses of members, membership information, related links.
- http://www.vpa.org/

The Turner Foundation
- In Springfield, Ohio includes historic preservation among its mandates.
- http://www.hmturnerfoundation.org

Historic Preservation Alliance of Wichita and Sedgwick County
- This branch of the Kansas Preservation Alliance describes its activities and gives photographs and information about historic landmarks in its area.
- http://members.cox.net/wichitahpa/

Miami Design Preservation League
- Protects, preserves and promotes the famed Art Deco District in Miami Beach, Florida. Events, architectural tours, Art Deco Museum.
- http://www.mdpl.org

Memphis Heritage
- The non-profit historic preservation society for Memphis and Shelby County, Tennessee. Concerns, projects and successes, events, old postcards, preservation listings, roundtable forums.
- http://www.memphisheritage.org

King William Association
- Aims to preserve the architectural and cultural heritage of the oldest historical neighborhood districts of San Antonio, Texas. Mission, history, tour, events.
- http://www.kingwilliamassociation.org

Historic Savannah Foundation
- A non-profit organization aiming to preserve the architectural heritage and original plan of this city in Georgia. History, neighborhood guide, events, board of trustees, staff, how to join.
- http://www.historicsavannahfoundation.org

Heritage Homes of Petaluma
- Works to preserve the unique architectural heritage of this Californian town with origins in the mid-19th century. Events, tours, news, how to join.
- http://www.heritagepetaluma.com/

Montana Preservation Alliance
- This non-profit all-volunteer organization works to preserve historic resources and places in Montana. Board, workshops, Montana's most endangered historic places.
- http://www.preservemontana.org

Friends of Historic Preservation, Iowa City, Iowa
- A non-profit organization dedicated to the preservation of historic buildings in Iowa City and Johnson County, Iowa. Directors, projects, events, newsletters.
- http://www.ic-fhp.org

Partners for Sacred Places
- Non-denominational nonprofit organization focused on caring for and making good use of older and historic religious properties. Includes information on places at risk extensive advice and case histories on maintenance techniques, fundraising, and pres
- http://www.sacredplaces.org/

National Council on Preservation Education
- NCPE is a US non-profit educational corporation to promote historic preservation and architectural conservation education programs and endeavours both in the US and abroad.
- http://www.uvm.edu/histpres/ncpe/

Preservation Burlington
- An organization that seeks to improve the livability of neighborhoods and to preserve the architectural, historic, aesthetic, and economic vitality of Burlington, Vermont.
- http://www.preservationburlington.org

Dayton Lane Historic Area Inc.
- An association for the preservation of the historic buildings of this area of Hamilton, Ohio. Gallery, membership, activities, events.
- http://www.historicdaytonlane.org/

Building Research Council, School of Architecture, University of Illinois Urbana-Champaign
- Aims to help improve the quality of the built environment in the United States, particularly housing, through research, education, and publications. Publications catalog.
- http://brc.arch.uiuc.edu/

Pennsylvania Historical and Museum Commission
- Operates the state archives and historic sites and museums throughout Pennsylvania and administers historic preservation programs.
- http://www.phmc.state.pa.us/

Landmarks Preservation Council of Illinois
- Statewide not-for-profit membership organization dedicated to the preservation of Illinois's architectural and historic resources. Membership, events, programs, current issues.
- http://www.landmarks.org

Idaho Heritage Trust
- Funded in 1989 by members of the Idaho Centennial Foundation. Gallery of projects throughout the state. Grant application (requires Adobe Acrobat Reader.)
- http://www.idahoheritage.org

New Jersey Historic Preservation Office
- Official website provides information and technical assistance for the identification, protection, and preservation of architectural and archaeological resources.
- http://www.state.nj.us/dep/hpo

National Trust for Historic Preservation
- Preservation information, features, events and activism for America's historic places.
- http://www.nationaltrust.org

Preservation Idaho
- The official website of the Idaho Historic Preservation Council, a non-profit organization to promote the preservation of Idaho's cultural and historical resources.
- http://www.preservationidaho.org

Merritt Parkway Conservancy
- A program of the Connecticut Trust for Historic Preservation which aims to revitalize the Merritt Parkway. Mission, Steering Committee, programs, Merritt Parkway history.
- http://merrittparkway.org

The American Cultural Resources Association
- A trade association for cultural resources consulting firms, promoting the business of archaeology, history, historic preservation, architectural history.
- http://www.acra-crm.org/

Association for Preservation Technologies Washington DC Chapter
- The local chapter of Association for Preservation Technology International. Newsletter, calendar, contacts.
- http://aptdc.org

Los Angeles Conservancy
- Historic preservation organization. Conservation alerts and issues, events, walking tours, volunteer opportunities.
- http://www.laconservancy.org

Cinema Treasures
- Dedicated to saving classic movie theaters in the US. News, database, photographs, virtual tours and message boards. Also aims, founders, sponsors and volunteer staff of the web-site.
- http://cinematreasures.org

Historic Landmarks Foundation of Indiana
- Private nonprofit group working to protect and save Indiana's historic places and educate the public about the importance of historic preservation.
- http://www.historiclandmarks.org/

San Antonio Conservation Society
- Preserving San Antonio heritage for future generations of South Texans. Learn about the society - the goals, the projects, the leaders, and the related sites.
- http://www.saconservation.org/

Preservation Society of Newport County
- Non-profit organization which saved and opened to the public the summer homes of the 19th-century New York elite. Visitor information, events, news, membership.
- http://newportmansions.org/

Preservation New Jersey
- A non-profit organization aiming to protect and promote the state's historic resources, communities and landscapes through education and advocacy.
- http://www.wcchc.org/pnj.htm

US ICOMOS
- The U.S. National Committee of the International Council on Monuments and Sites fosters heritage conservation and historic preservation.
- http://www.icomos.org/usicomos

New York Landmarks Conservancy
- An organization which helps owners of older buildings by providing grants, low-interest loans, hands-on consulting services, workshops, and publications.
- http://www.nylandmarks.org

Friends of Terra Cotta
- A national, non-profit organization, to promote education and research in the preservation of architectural terra cotta and related ceramic materials.
- http://www.preserve.org/fotc

Florida Trust For Historic Preservation
- Aims to promote and preserve architectural, historical, and archaeological heritage. Conferences, workshops, publications and tours of preserved historical sites.
- http://www.floridatrust.org

Eureka Heritage Society
- An organization dedicated to the preservation of the over 9000 historic homes in Eureka, California.
- http://www.eurekaheritage.org

California Missions Studies Association
- A nonprofit group devoted to the study and preservation of the 21 missions and related buildings of early California. Mission directory, articles, reviews, glossary, bibliographies, projects, news and events.
- http://www.ca-missions.org

California Preservation Foundation
- Non-profit organization dedicated to the preservation and enhancement of California's historic built environment. Aims, membership, event calendar, publications, case studies.
- http://www.californiapreservation.org

Alameda Architectural Preservation Society
- Dedicated to preserving the architectural legacy of Alameda, California. Articles, events, officers.
- http://www.alameda-preservation.org

Society for the Preservation of Old Mills
- A non-profit organization. Aims, board, publications, conference, event calendar, grants for repair and research, regional chapters, links.
- http://www.spoom.org/

The Preservation Resource Center
- Founded in 1974, the Preservation Resource Center is a non-profit organization dedicated to the preservation of historic architecture and neighborhoods of New Orleans.
- http://www.prcno.org/

National Society for the Preservation of Covered Bridges
- This American non-profit society publishes the World Guide to Covered Bridges, a quarterly magazine and a newsletter, excerpts from which are online.
- http://www.vermontbridges.com/nspcb1st.htm

Federal Highway Administration
- The FHA has an awards program for preservation projects, particulalry for historic bridges.
- http://www.fhwa.dot.gov

Connecticut Trust for Historic Preservation
- Dedicated to preserving the state's historic architecture, streetscapes, urban neighborhoods and country landscapes. Photographs and details of endangered historic properties. News, events.
- http://www.cttrust.org/