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  • Preservation Trades Network, Inc.
  • www.ptn.org
  • Non-profit membership organization dedicated to education, networking and outreach for the traditional building trades and allied disciplines. Includes information on trade shows and events.
3.9
(si*)
>10
5
  • Tradweb
  • www.tradwebdirectory.com
  • Directory of product suppliers, contractors, and craftspeople who do preservation work.
3.7
(si*)
>90
4
  • Historic House Colors
  • www.historichousecolors.com
  • A nationwide consulting service that selects historically appropriate color schemes for homes and commercial building exteriors.
3.5
(si*)
<5
3
  • Robert Silman Associates PC
  • www.rsapc.com
  • Structural engineers specialize in historic preservation, including large federal projects in the United States. Includes work on masonry, timber, and cast concrete structures.
3.5
(si*)
-
5
3.5
(si*)
-
4
  • Sanrakshan Heritage Consultants
  • www.sanrakshan.com
  • A cultural heritage management firm in India specialising in the architectural conservation and management planning.
3.4
(si*)
-
4
  • ARS Progetti
  • www.arsprogetti.com
  • Ambiente Risorse e Sviluppo (Environment, Resources and Development) is a consulting firm working all over the world.
3.4
(si*)
-
4
  • Barn Histories
  • barnhistories.com
  • Provides documentation of historic barns and outbuildings in the U.S. that includes condition reports, historical narratives, physical descriptions, architectural documentation, historic site plans, and State and National Register nominations.
3.3
(si*)
-
3
  • Ned Kaufman PhD
  • www.kaufmanconservation.com
  • An independent practice offering a wide range of professional services in heritage conservation, based in New York City.
3.3
(si*)
-
3
  • Historic Documentation Company, Inc.
  • www.historicdoc.com
  • Serves government agencies, historic property owners and managers with surveys, permitting, US National Register nominations, HABS/HAER documents, restoration and conservation consulting and large format photography. Based in Portsmouth, Rhode Island.
3.3
(si*)
-
3
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