The following table shows how many professional, scientific and technical services businesses with between one and four employees were in Allegheny County zip codes during the period from 2012 to 2016.
Professional, scientific and technical services businesses with between one and four employees in Allegheny County (2012-2016)
Year
Total businesses
2012
2332
2013
2343
2014
2312
2015
2379
2016
2379
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