Antique dealers often belong to national trade associations, many of which belong to CINOA, a confederation of art and antique associations across 21 countries that represents 5,000 dealers.
Antikvitetsforhandlere tilhører ofte nationale brancheorganisationer, heraf mange som tilhører CINOA, en forening for kunst- og antikbrancheforeninger over 21 lande, som repræsenterer mere end 5.000 forhandlere.