CBP data indicates that there are more establishments categorized as professional, scientific and technical services businesses with between one and four employees in Dupage County zip codes than in any other category.
The following table shows how many construction businesses with between one and four employees were in Dupage County zip codes during the period from 2012 to 2016.
Construction businesses with between one and four employees in Dupage County (2012-2016)
Year
Total businesses
2012
2111
2013
2123
2014
2136
2015
2187
2016
2214