CBP data indicates that there are more establishments categorized as construction businesses with between one and four employees in 21122 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 21122 during the period from 2012 to 2016.
Professional, scientific and technical services businesses with between one and four employees in 21122 (2012-2016)
Year
Total businesses
2012
63
2013
62
2014
63
2015
68
2016
73