This company in Iran offers preservation and restoration of historic buildings, objects, books and documents. Activities, portfolio, services, facilities.

Woman-owned business, based in Maryland, provides cultural resource evaluations, primarily in the northeastern United States. Photos and brief description of services.

Historic Restorations</a> - Preservation Trades Company provides planning, estimating, design and construction services for the restoration of historic buildings.

Contractors and designers specializing in historic restoration. Includes information on trade shows and events.

Directory of product suppliers, contractors, and craftspeople who do preservation work.

Structural engineers specialize in historic preservation, including large federal projects in the United States. Includes work on masonry, timber, and cast concrete structures.

A cultural heritage management firm in India specialising in the architectural conservation and management planning.

Refurbishment of arches and vaulted roofs for houses, taverns, basements and churches. An Italian firm which works across the world.