participants of the ARCA exhibition
- Development and construction companies
- Design and engineering firms
- Architecture and interior design studios
- Restoration workshops and research organizations specializing in cultural heritage conservation
- Museums, museum-reserves, historic estates and palace-and-park ensembles, galleries, archives, libraries and other cultural institutions
- Heritage protection authorities, foundations and non-profit organizations working with historical heritage
- Specialized universities, research and educational institutions
- Manufacturers, distributors and suppliers of restoration, construction and finishing materials and tools, construction chemicals, measuring and testing instruments, paints and coatings, specialty compounds, metal structures, architectural glass and other products