Since 1997, PTN has worked in partnership with many organizations to offer the International Preservation Trades Workshop, and other educational events, programs and initiatives. Their support and participation in developing and offering these programs is gratefully acknowledged.
Show your support for our mission and work. Sponsor the annual IPTW to promote the trades, gain recognition for your work, and network with the nation's premier preservation tradespeople. We have opportunities for employers, non-profit organizations, and exhibitors.
American College of the Building Arts
Association for Preservation Technology - Washington, DC Chapter
Colorado Mountain College
Dalarna Region Cooperation Council
Delaware Division of Historic and Cultural Affairs
Gateway National Recreation Area
Harford Community College
Historic Area Commission of New Castle
Historic Mobile Preservation Society
Historic Preservation Training Center
Holy Cross Neighborhood Association
Howard County Department of Recreation and Parks
Mobile Historic Development Commission
National Center for Preservation Training and Technology
National Council for Preservation Education
New Castle Visitors Bureau
Pennsylvania Historical and Museum Commission
Preservation Education Institute
Slate Roofing Contractors Association
Swedish Construction Federation
University of Florida, Historic Preservation Program
Vermont Granite Museum and Stone Arts School
Virginia Lime Works
Please consider joining these champions of the traditional building trades by helping to support PTN programs or events through donations of materials, money or in-kind services.
Almquist Lumber Company, Arcata, CA
Association for Preservation Techology - Washington, DC Chapter
Atlas Preservation Inc - Monument & Building Restoration Supply
Cathedral Stone Products, Inc., MD
Christian and Son, Burbank, OH
Christman Company, Alexandria, VA
College of the Redwoods Bookstore, Eureka, CA
Cowls Sawmill, North Amherst, MA
Craftwright Inc., Westminster, MD
Creative Home Construction, Eureka, CA
D/2 Biological Solution - Stone & Masonry Cleaner
Eco-Strip, LLC, Reston, VA
Ellicott City Restoration Foundation
Heritage Restoration Inc., Providence, RI
Historic Ellicott City, Inc.
Historic Restoration Specialists, Inc., Smithsburg, MD
Humbolt Builders Exchange, Eureka, CA
LBJ Enterprises, Eureka, CA
Mon-Ray, Inc., Minneapolis, MN
Pierson Building Supply, Eureka, CA
Preservation Howard County - Howard County, MD
Restore Media
Preservation Plastering, Brattleboro, VT
Robinson Lumber Co., New Orleans, LA
Rolling Rock Stone, Boyertown, PA
Solo Sports, Arcata CA
Tradeweb Custom Restoration and Building Services
W.L. Fuller, Warwick, RI