CBP data indicates that there are more establishments categorized as professional, scientific and technical services businesses with between one and four employees in 92078 than in any other category.
The following table shows how many wholesale trade businesses with between one and four employees were in 92078 during the period from 2012 to 2016.
Wholesale trade businesses with between one and four employees in 92078 (2012-2016)
Year
Total businesses
2012
53
2013
51
2014
50
2015
50
2016
55