My guess is that most of them have shops here at one time or another. I am signed up with over 100. Start with the "Offical List of Mystery Shopping Companies" at the bottom of this page. Someone recently suggested starting at the end of the list. Maybe start in the middle and go both ways? I often see shops for those listed under "Fifteen Most Discussed Companies".
Shopping Southeast Pennsylvania, Delaware above the canal, and southwestern NJ since 2008
For years, when I travel to NJ to visit relatives, I have been able to find tons of MS work of all kinds offered there. Just start by signing up with the 15 most discussed MS companies, from the list below. Then add 5-10 more on any day when you have not found as many shops as you want for that day. Soon you will have more to choose from that you can possible do in a week.
Based in MD, near DC
Shopping from the Carolinas to New York
Have video cam; will travel
Intouch Insight has regular mystery shopping opportunities throughout the state of NJ and NY and I am the Scheduler for those states. You can register with us by visiting our website at www.intouchinsight.com. We share the platform I Secret Shop with other MSPs so you will likely have other opportunities in your area through other companies. You can also register and complete shops through their mobile app as well as their website.
Intouch Insight pays via PayPal every other Friday so we have a great turn around!
If you have any questions you can reach out to me directly and I will be happy to assist you with registration or answer any other questions you may have.