ARTnews releases list of 200 Top Collectors

The list includes their name, location (not address), industry and what type of art they are primarily interested in. It certainly isn't good practice to chase these people down but slipping an anonymous, generic invitation to your upcoming exhibition or press release may not be a bad idea.

http://www.artnews.com/2012/06/26/the-artnews-200-top-collectors/