CBP data indicates that there are more establishments categorized as professional, scientific and technical services businesses with between one and four employees in Allegheny County zip codes than in any other category.
The following table shows how many construction businesses with between one and four employees were in Allegheny County zip codes during the period from 2012 to 2016.
Construction businesses with between one and four employees in Allegheny County (2012-2016)
Year
Total businesses
2012
1566
2013
1592
2014
1611
2015
1599
2016
1572
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