There were 603 professional, scientific and technical services businesses in Maricopa County zip codes that had between 20 and 49 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 accommodation and food services businesses with between 20 and 49 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 20 and 49 employees were in Maricopa County zip codes during the period from 2012 to 2016.