Provides scientific analysis of historic finishes for the restoration of historic structures ranging from state capitol buildings to archaeological sites.

Provides consulting and analytical services, including materials analysis.

Ambiente Risorse e Sviluppo (Environment, Resources and Development) is a consulting firm working all over the world.

Services include documentation of historic barns and outbuildings that includes condition reports, historical narratives, physical descriptions, architectural documentation, historic site plans, and State and National Register nominations.

Custom design contracting firm specializing in adaptive reuse of old barns into unique homes. Features portfolio, FAQs, news. Based in Carversville, PA.

A private consulting and research firm practicing preservation design, conditions assessments, materials science, and historic building documentation. Projects are in the northeastern United States.

Based in Savannah, GA and Nelson County, VA, providing a range of historic preservation services in the Southeast.

Provides scholarly research, lectures, tours, and instructional materials on modern art and architecture for organizations, film-makers, and museums.

EHT Traceries, Inc. is research and consulting firm specializing in architectural history and historic preservation.

An Italian company based in Florence offering geophysical surveys for archaeology and civil engineering, monitoring of structure micro-shifts, databases, geographic information systems. Company profile, examples.

Historic Preservation construction company offering services such as framing, plaster, window repair and interior finish work.

A nationwide consulting service that selects historically appropriate color schemes for homes and commercial building exteriors.

Strengthens existing fragile plaster in ceilings and walls in historic buildings.

Master carpenter specializing in historic preservation, including plaster, millwork, and timber frame repairs.

Consulting engineers who specialise in the sensitive repair and conservation of historic buildings and structures. Portfolio includes projects throughout the United Kingdom.

New England business specializing in historic preservation. Projects include historically-sensitive additions, historic barn restoration, and custom millwork and woodworking.

Stained glass consultants advise on stained glass conservation issues.

Residential restoration consultants dedicated to restoring fine homes to their original spirit.

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.

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.

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.