CBP data indicates that there are more establishments categorized as retail trade businesses with between 10 and 19 employees in Maricopa County zip codes than in any other category.
The following table shows how many wholesale trade businesses with between 10 and 19 employees were in Maricopa County zip codes during the period from 2012 to 2016.
Wholesale trade businesses with between 10 and 19 employees in Maricopa County (2012-2016)
Year
Total businesses
2012
621
2013
620
2014
630
2015
636
2016
602