C.G. Bostwick Company, Hartford, CT 06106, U.S.
-- Custom Historical Slate, Tile and Metal Roofing Installations.
-- 860-523-5249  http://www.bostwickroofing.com

Jay Bright Architect, New Haven, CT 06511, U.S.
-- Specializing in Historic Preservation and Traditional Renovations. Connecticut.
-- 203-776-0798  http://www.traditional-building.com/brochure/members/architects.shtml

Metropolitan Restoration & Waterproofing Corp., Boston, MA 02125, U.S.
-- Waterproofing, Masonry Restoration and Roofing Services. Historic Restoration for Eastern New England.
-- 617-282-7663  http://www.mrwc.com

Jenkins Slate Roofing Services, Grove City, PA 16127, U.S.
-- Historic Roof Restoration and Installation. Slate Roof Bible.
-- 814-786-9085  http://www.jenkinsslate.com

Penn Big Bed Slate Co., Inc., Slatington, PA 18080, U.S.
-- Pennsylvania Roofing Slate Quarry. Producers of Slate Flooring Tile and Dimensional Stone.
-- 610-767-4601  http://www.pennbigbedslate.com

Specialty Copper Roofing, Pottstown, PA 19464, U.S.
-- Custom Pre-Fab Sheet Metal Roofing Solutions - Anywhere, USA
-- 800-247-5417  http://www.specialtycopperroofing.com

Paradigm Shingles, Inc., Milton, VT 05468, U.S.
-- Manufacturer of metal roofing shingles. Exclusive manufacturer of Revere Bennington and Bermuda copper shingles.
-- 877-674-4645  http://www.paradigmshingles.com

Vermont Specialty Slate, Brandon, VT 05733, U.S.
-- Roofing Slate. Vermont Slate.
-- 802-247-6615  http://www.vtslate.com

Vulcan Supply Corp., Westford, VT 05494, U.S.
-- Ornamental Sheet Metal. Weathervanes. Coppersmiths and Tinsmiths
-- 802-893-0512  http://www.vulcansupply.com