Companies listed on the OTCQXAnyone who is interested can find a list of companies listed on the OTCQX, which is the highest tier of the OTC market, at the link below. You are sure to find some names you recognize, such as Intertain, Air Canada, Heineken, BASF, Yamaha, Marks & Spencer, etc. among the 449 listed securities.
https://s3.amazonaws.com/content.otcmarkets.com/qx/companies/QX_Securities.xls