| Arbogast Paint Analysis: Provides scientific analysis of historic finishes for the restoration of historic structures ranging from state capitol buildings to archaeological sites. |
| Architectural Restoration Technologies: Provides consulting and analytical services, including materials analysis. |
| ARS Progetti: Ambiente Risorse e Sviluppo (Environment, Resources and Development) is a consulting firm working all over the world. |
| Barn Histories: 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. |
| 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. |
| 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. |
| Colony Historic Resources Consulting, LLC: Based in Savannah, GA and Nelson County, VA, providing a range of historic preservation services in the Southeast. |
| Curatorial Resources and Research: Provides scholarly research, lectures, tours, and instructional materials on modern art and architecture for organizations, film-makers, and museums. |
| EHT Traceries, Inc: EHT Traceries, Inc. is research and consulting firm specializing in architectural history and historic preservation. |
| General Engineering: Galileo Siscam Technology: 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. |
| Heritage Restoration, Inc: Historic Preservation construction company offering services such as framing, plaster, window repair and interior finish work. |
| Historic House Colors: A nationwide consulting service that selects historically appropriate color schemes for homes and commercial building exteriors. |
| Historic Plaster Conservation Services Limited: Strengthens existing fragile plaster in ceilings and walls in historic buildings. |
| Historic Structures: Master carpenter specializing in historic preservation, including plaster, millwork, and timber frame repairs. |
| Hockley & Dawson: Consulting engineers who specialise in the sensitive repair and conservation of historic buildings and structures. Portfolio includes projects throughout the United Kingdom. |
| J. Ballard Carpentry: New England business specializing in historic preservation. Projects include historically-sensitive additions, historic barn restoration, and custom millwork and woodworking. |
| Julie L. Sloan: Stained glass consultants advise on stained glass conservation issues. |
| Magnolia Restorations: Residential restoration consultants dedicated to restoring fine homes to their original spirit. |
| 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. |
| Parasmoon: This company in Iran offers preservation and restoration of historic buildings, objects, books and documents. Activities, portfolio, services, facilities. |
| 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. |
| Preservation Trades Company - Historic Restorations: Preservation Trades Company provides planning, estimating, design and construction services for the restoration of historic buildings. |
| Preservation Trades Network (PTN): Contractors and designers specializing in historic restoration. Includes information on trade shows and events. |
| PreservationWeb: Directory of product suppliers, contractors, and craftspeople who do preservation work. |
| 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. |
| Sanrakshan Heritage Consultants: A cultural heritage management firm in India specialising in the architectural conservation and management planning. |
| 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. |
| Tutto Sesto: Refurbishment of arches and vaulted roofs for houses, taverns, basements and churches. An Italian firm which works across the world. |
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