CBP data indicates that there are more establishments categorized as construction businesses with between one and four employees in 1851 than in any other category.
The following table shows how many professional, scientific and technical services businesses with between one and four employees were in 1851 during the period from 2012 to 2016.
Professional, scientific and technical services businesses with between one and four employees in 1851 (2012-2016)
Year
Total businesses
2012
18
2013
21
2014
21
2015
18
2016
20