» 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/

» 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/

» 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.
   http://www.gen-eng.florence.it/

» 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/

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

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

» 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/

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