Dealers in bulk and wholesale dry ice vary by city and region. Companies such as Airgas, Linde and Continental Carbonic sell dry ice to large commercial buyers. For bulk consumer sales, the online dry ice directory or a local web search list retailers and wholesalers selling dry ice.
Large quantities of dry ice can come in many forms besides the blocks sold by smaller retailers. For example, Continental Carbonic sells dry ice in pellet form, as well as in various packages for shipping purposes. Regulations in many locations require food grade dry ice if the ice is used to cool food products.