All Employees: Scientific Research and Development Services in Pennsylvania was 47.20000 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, All Employees: Scientific Research and Development Services in Pennsylvania reached a record high of 47.20000 in January of 2023 and a record low of 20.80000 in January of 1998. Trading Economics provides the current actual value, an historical data chart and related indicators for All Employees: Scientific Research and Development Services in Pennsylvania - last updated from the United States Federal Reserve on March of 2024.