CBP data indicates that there are more establishments categorized as construction businesses with between one and four employees in 33991 than in any other category.
The following table shows how many wholesale trade businesses with between one and four employees were in 33991 during the period from 2012 to 2016.
Wholesale trade businesses with between one and four employees in 33991 (2012-2016)
Year
Total businesses
2012
9
2013
8
2014
8
2015
5
2016
10