CBP data indicates that there are more establishments categorized as health care and social assistance businesses with 500 or more employees in Washington than in any other category.
The following table shows how many specialty trade contractors with 500 or more employees were in Washington during the period from 2012 to 2016.
Specialty trade contractors with 500 or more employees in Washington (2012-2016)
Year
Total businesses
2012
421,717
2013
422,859
2014
427,529
2015
437,145
2016
447,787