CBP data indicates that there are more establishments categorized as construction businesses with between one and four employees in 52001 than in any other category.
The following table shows how many transportation and warehousing businesses with between one and four employees were in 52001 during the period from 2012 to 2016.
Transportation and warehousing businesses with between one and four employees in 52001 (2012-2016)
Year
Total businesses
2012
20
2013
15
2014
15
2015
17
2016
15