CBP data indicates that there are more establishments categorized as professional, scientific and technical services businesses with between one and four employees in 21209 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 21209 during the period from 2012 to 2016.
Real estate, rental and leasing businesses with between one and four employees in 21209 (2012-2016)
Year
Total businesses
2012
19
2013
23
2014
23
2015
28
2016
27