- Monuments, Churches and Cloisters 1
- Museums 82
- Research institutes 19
- Research projects 17
- Conservation and restauration projects 3
- Databases and
Research Tools 32 - Networking societies 11
- Art market and galleries 33
- Private collections 1
- Belgium 48
- USA 21
- Germany 21
- France 16
- United Kingdom 15
- The Netherlands 15
- Spain 9
- Austria 3
- Italy 2
- Canada 2
- Sweden 1
- Portugal 1
- Ireland 1
- Hungary 1
- Denmark 1
- Czech Republic 1
- Bulgaria 1
- Australia 1
- Armenia 1