CBP data indicates that there are more establishments categorized as retail trade businesses with between 250 and 499 employees in California than in any other category.
The following table shows how many construction of buildings with between 250 and 499 employees were in California during the period from 2012 to 2016.
Construction of buildings with between 250 and 499 employees in California (2012-2016)
Year
Total businesses
2012
192,052
2013
196,559
2014
200,846
2015
206,286
2016
210,469