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

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

A women-owned research and consulting firm specializing in architectural history and historic preservation, based in Washington, DC. - Read more

Strengthens existing fragile plaster in ceilings and walls in historic buildings. - Read more

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

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. - Read more

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

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. - Read more

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

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