CBP data indicates that there are more establishments categorized as wholesale trade businesses with between 20 and 49 employees in 91710 than in any other category.
The following table shows how many construction businesses with between 20 and 49 employees were in 91710 during the period from 2012 to 2016.
Construction businesses with between 20 and 49 employees in 91710 (2012-2016)
Year
Total businesses
2012
30
2013
29
2014
29
2015
30
2016
31