CBP data indicates that there are more establishments categorized as health care and social assistance businesses with between one and four employees in 21229 than in any other category.
The following table shows how many construction businesses with between one and four employees were in 21229 during the period from 2012 to 2016.
Construction businesses with between one and four employees in 21229 (2012-2016)
Year
Total businesses
2012
12
2013
16
2014
13
2015
11
2016
15