CBP data indicates that there are more establishments categorized as professional, scientific and technical services businesses with between one and four employees in 21403 than in any other category.
The following table shows how many retail trade businesses with between one and four employees were in 21403 during the period from 2012 to 2016.
Retail trade businesses with between one and four employees in 21403 (2012-2016)
Year
Total businesses
2012
43
2013
38
2014
35
2015
37
2016
39