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 construction businesses with between one and four employees were in San Mateo County zip codes during the period from 2012 to 2016.
Construction businesses with between one and four employees in San Mateo County (2012-2016)
Year
Total businesses
2012
1122
2013
1127
2014
1146
2015
1159
2016
1177