CBP data indicates that there are more establishments categorized as retail trade businesses with between one and four employees in 29550 than in any other category.
The following table shows how many construction businesses with between one and four employees were in 29550 during the period from 2012 to 2016.
Construction businesses with between one and four employees in 29550 (2012-2016)
Year
Total businesses
2012
15
2013
15
2014
14
2015
11
2016
11