At one time I had a website, that was provided by , one of the banks offering refund products. The website you could enter a zip code and it would give you a list of all of the prparers in the Zip Code and how many returns they efiled.  Best I can remember it was called, Tax Marketing Area Report.  There was a charge for it, but it was really handy if you were looking to expand into a market and see what the competition was doing. I am not sure if it is still around. thanks in advance for any help.