CBP data indicates that there are more establishments categorized as professional, scientific and technical services businesses with between one and four employees in 91730 than in any other category.
The following table shows how many transportation and warehousing businesses with between one and four employees were in 91730 during the period from 2012 to 2016.
Transportation and warehousing businesses with between one and four employees in 91730 (2012-2016)
Year
Total businesses
2012
41
2013
43
2014
41
2015
49
2016
51