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 telecommunications businesses with between 250 and 499 employees were in California during the period from 2012 to 2016.
Telecommunications businesses with between 250 and 499 employees in California (2012-2016)
Year
Total businesses
2012
49,172
2013
48,180
2014
50,435
2015
53,010
2016
59,236