All Employees: Scientific Research and Development Services in California was 193.10000 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, All Employees: Scientific Research and Development Services in California reached a record high of 193.10000 in January of 2023 and a record low of 72.00000 in January of 1992. Trading Economics provides the current actual value, an historical data chart and related indicators for All Employees: Scientific Research and Development Services in California - last updated from the United States Federal Reserve on March of 2024.