There were 84 professional, scientific and technical services businesses in Maricopa County zip codes that had between 100 and 249 employees in 2016, according to County Business Patterns (CBP) statistics provided by the United States Census Bureau.

CBP data indicates that there are more establishments categorized as retail trade businesses with between 100 and 249 employees in Maricopa County zip codes than in any other category.

The following table shows how many professional, scientific and technical services businesses with between 100 and 249 employees were in Maricopa County zip codes during the period from 2012 to 2016.