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 industries not classified businesses with between one and four employees were in San Diego County zip codes during the period from 2012 to 2016.
Industries not classified businesses with between one and four employees in San Diego County (2012-2016)
Year
Total businesses
2012
88
2013
159
2014
239
2015
279
2016
246
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