CBP data indicates that there are more establishments categorized as retail trade businesses with between one and four employees in 23970 than in any other category.
The following table shows how many construction businesses with between one and four employees were in 23970 during the period from 2012 to 2016.
Construction businesses with between one and four employees in 23970 (2012-2016)
Year
Total businesses
2012
8
2013
14
2014
13
2015
14
2016
14