CBP data indicates that there are more establishments categorized as retail trade businesses with between one and four employees in 21231 than in any other category.
The following table shows how many finance and insurance businesses with between one and four employees were in 21231 during the period from 2012 to 2016.
Finance and insurance businesses with between one and four employees in 21231 (2012-2016)
Year
Total businesses
2012
9
2013
10
2014
10
2015
12
2016
13