CBP data indicates that there are more establishments categorized as professional, scientific and technical services businesses with between one and four employees in San Diego County zip codes than in any other category.
The following table shows how many utilities with between one and four employees were in San Diego County zip codes during the period from 2012 to 2016.
Utilities with between one and four employees in San Diego County (2012-2016)
Year
Total businesses
2012
36
2013
28
2014
34
2015
39
2016
54
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