Parasmoon
This company in Iran offers preservation and restoration of historic buildings, objects, books and documents. Activities, portfolio, services, facilities.
http://www.parasmoon.com/

PreservationWeb
Directory of product suppliers, contractors, and craftspeople who do preservation work.
http://www.preservationweb.com/

Robert Silman Associates PC
Structural engineers specialize in historic preservation, including large federal projects in the United States. Includes work on masonry, timber, and cast concrete structures.
http://www.rsapc.com/

Building Conservation Associates
A private consulting and research firm practicing preservation design, conditions assessments, materials science, and historic building documentation. Projects are in the northeastern United States.
http://www.bcausa.com/

Hockley & Dawson
Consulting engineers who specialise in the sensitive repair and conservation of historic buildings and structures. Portfolio includes projects throughout the United Kingdom.
http://www.hockleyanddawson.co.uk/

Curatorial Resources and Research
Provides scholarly research, lectures, tours, and instructional materials on modern art and architecture for organizations, film-makers, and museums.
http://www.curatorialresources.com/

Paula S. Reed and Associates, Inc.
Woman-owned business, based in Maryland, provides cultural resource evaluations, primarily in the northeastern United States. Photos and brief description of services.
http://www.paulasreed.com/

Office of Bauforschung
A firm documenting and researching historical monuments in the Austrian Tyrol, as well as advising on and supervising restoration. Team, projects. In English, German and Italian.
http://www.bauforschung-tirol.com

Sanrakshan Heritage Consultants
A cultural heritage management firm in India specialising in the architectural conservation and management planning.
http://www.sanrakshan.com

Julie L. Sloan
Stained glass consultants advise on stained glass conservation issues.
http://www.jlsloan.com/

Preservation Trades Network (PTN)
Contractors and designers specializing in historic restoration. Includes information on trade shows and events.
http://www.ptn.org/

Architectural Restoration Technologies
Provides consulting and analytical services, including materials analysis.
http://www.art-crs.com/

ARS Progetti
Ambiente Risorse e Sviluppo (Environment, Resources and Development) is a consulting firm working all over the world.
http://www.arsprogetti.com

Tutto Sesto
Refurbishment of arches and vaulted roofs for houses, taverns, basements and churches. An Italian firm which works across the world.
http://www.tuttosesto.it

Heritage Restoration, Inc
Historic Preservation construction company offering services such as framing, plaster, window repair and interior finish work.
http://www.heritagerestoration.org/

Historic Structures
Master carpenter specializing in historic preservation, including plaster, millwork, and timber frame repairs.
http://historicstructuresdc.com/

Arbogast Paint Analysis
Provides scientific analysis of historic finishes for the restoration of historic structures ranging from state capitol buildings to archaeological sites.
http://www.paintanalysis.biz/

Magnolia Restorations
Residential restoration consultants dedicated to restoring fine homes to their original spirit.
http://www.magnoliarestoration.com

Preservation Trades Company
Provides planning, estimating, design and construction services for the restoration of historic buildings.
http://www.preservationtradesco.com

EHT Traceries, Inc
A women-owned research and consulting firm specializing in architectural history and historic preservation, based in Washington, DC.
http://www.traceries.com

Steven McQuillin & Associates: Building Preservation Consultants
Consulting firm specializing in National Register nominations, tax credits, theatre restoration work, urban planning, local preservation laws, advocacy. Based in northeast Ohio, providing service throughout the U. S.
http://www.mcquillinassociates.com

J. Ballard Carpentry
New England business specializing in historic preservation. Projects include historically-sensitive additions, historic barn restoration, and custom millwork and woodworking.
http://www.jballardcarpentry.com/

Historic Plaster Conservation Services Limited
Strengthens existing fragile plaster in ceilings and walls in historic buildings.
http://www.historicplaster.com/

Barn Histories
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.
http://barnhistories.com

Historic House Colors
A nationwide consulting service that selects historically appropriate color schemes for homes and commercial building exteriors.
http://www.historichousecolors.com/

Bucks County TimberCraft Inc.
Custom design contracting firm specializing in adaptive reuse of old barns into unique homes. Features portfolio, FAQs, news. Based in Carversville, PA.
http://buckscountytimbercraft.com

Ned Kaufman PhD
An independent practice offering a wide range of professional services in heritage conservation, based in New York City.
http://www.kaufmanconservation.com

Induni Conservation
Bruce Induni offers consultancy in the UK on all aspects of historic stonework and mortar and teaches short courses on conservation. He describes his services, philosophy and experience.
http://www.induni.net

Architectural Artisans
A studio crafting hand-carved architectural works in wood and marble for residential, commercial and historical interiors. This firm based in Valencia, California, works across the US.
http://www.architecturalartisans.com/