What percent, if any, of OTC companies are pre-revenue?

10/17/2017 11:46:46 AM,
Jason Paltrowitz replied:

Approx. 15% of OTCQB/OTCQX companies are pre-revenue

What percent, if any, of OTC companies are pre-revenue?

I'm wondering how early it makes sense for a company to seek an OTC listing. Perhaps stage of revenue is one indicator. What percent, if any, of OTC companies are pre-revenue? 

10/17/2017 11:46:46 AM,
Jason Paltrowitz replied:

Approx. 15% of OTCQB/OTCQX companies are pre-revenue