CBP data indicates that there are more establishments categorized as construction businesses with between one and four employees in 56537 than in any other category.
The following table shows how many real estate, rental and leasing businesses with between one and four employees were in 56537 during the period from 2012 to 2016.
Real estate, rental and leasing businesses with between one and four employees in 56537 (2012-2016)
Year
Total businesses
2012
21
2013
20
2014
21
2015
18
2016
16