CBP data indicates that there are more establishments categorized as health care and social assistance businesses with between one and four employees in 28311 than in any other category.
The following table shows how many construction businesses with between one and four employees were in 28311 during the period from 2012 to 2016.
Construction businesses with between one and four employees in 28311 (2012-2016)
Year
Total businesses
2012
18
2013
15
2014
12
2015
11
2016
18