I like your approach of sniffing out new companies... I took a look on OTCMarkets and have to admit I could not see how to find new listings ... the instructions in the FAQ were useless for me as the corporate actions filter does not have 'new securities' explicitly:
"How can I view new securities to the OTC and other corporate actions?
All corporate actions, including: symbol changes, venue changes (new to the OTC), OTC Tier changes, Caveat Emptor status changes, Splits, Dividends, and Deletes are available within the Corporate Actions section."
