CBP data indicates that there are more establishments categorized as construction businesses with between one and four employees in 21015 than in any other category.
The following table shows how many wholesale trade businesses with between one and four employees were in 21015 during the period from 2012 to 2016.
Wholesale trade businesses with between one and four employees in 21015 (2012-2016)
Year
Total businesses
2012
23
2013
20
2014
22
2015
19
2016
18