CBP data indicates that there are more establishments categorized as professional, scientific and technical services businesses with between one and four employees in San Mateo County zip codes than in any other category.
The following table shows how many wholesale trade businesses with between one and four employees were in San Mateo County zip codes during the period from 2012 to 2016.
Wholesale trade businesses with between one and four employees in San Mateo County (2012-2016)
Year
Total businesses
2012
613
2013
612
2014
611
2015
597
2016
581