CBP data indicates that there are more establishments categorized as professional, scientific and technical services businesses with between 250 and 499 employees in King County zip codes than in any other category.
The following table shows how many management of companies and enterprises with between 250 and 499 employees were in King County zip codes during the period from 2012 to 2016.
Management of companies and enterprises with between 250 and 499 employees in King County (2012-2016)
Year
Total businesses
2012
18
2013
21
2014
20
2015
26
2016
23