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 finance and insurance businesses with between one and four employees were in 29550 during the period from 2012 to 2016.
Finance and insurance businesses with between one and four employees in 29550 (2012-2016)
Year
Total businesses
2012
35
2013
39
2014
37
2015
38
2016
38