CBP data indicates that there are more establishments categorized as retail trade businesses with between one and four employees in 21218 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 21218 during the period from 2012 to 2016.
Professional, scientific and technical services businesses with between one and four employees in 21218 (2012-2016)
Year
Total businesses
2012
77
2013
79
2014
75
2015
72
2016
73