Answer:
I research mystery shopping and non financial audits across the US, Canada, and internationally. I do not complete a precise count when I do my monthly database update, but across the 75 Companies in the US I review (who are approximately 95% of the market), I would say 30-40,000 on any given day would be a conservative estimate. Of course, this straddle a wide range of businesses and business categories. If you would like to know more on my research and business, please feel free to visit my website as posted in my profile.