CBP data indicates that there are more establishments categorized as retail trade businesses with between one and four employees in Philadelphia County zip codes than in any other category.
The following table shows how many professional, scientific and technical services businesses with between one and four employees were in Philadelphia County zip codes during the period from 2012 to 2016.
Professional, scientific and technical services businesses with between one and four employees in Philadelphia County (2012-2016)
Year
Total businesses
2012
1658
2013
1676
2014
1735
2015
1732
2016
1764