All Employees: Professional and Business Services: Scientific Research and Development Services in Pennsylvania was 45.70000 Thous. of Persons in March of 2022, according to the United States Federal Reserve. Historically, All Employees: Professional and Business Services: Scientific Research and Development Services in Pennsylvania reached a record high of 45.70000 in March of 2022 and a record low of 20.10000 in November of 1998. Trading Economics provides the current actual value, an historical data chart and related indicators for All Employees: Professional and Business Services: Scientific Research and Development Services in Pennsylvania - last updated from the United States Federal Reserve on March of 2024.