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 real estate, rental and leasing businesses with between one and four employees were in Dupage County zip codes during the period from 2012 to 2016.
Real estate, rental and leasing businesses with between one and four employees in Dupage County (2012-2016)
Year
Total businesses
2012
926
2013
964
2014
961
2015
980
2016
1059