CBP data indicates that there are more establishments categorized as professional, scientific and technical services businesses with between one and four employees in 91350 than in any other category.
The following table shows how many construction businesses with between one and four employees were in 91350 during the period from 2012 to 2016.
Construction businesses with between one and four employees in 91350 (2012-2016)
Year
Total businesses
2012
42
2013
52
2014
51
2015
49
2016
55