All Employees: Professional and Business Services: Business Support Services in California was 44.00260 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, All Employees: Professional and Business Services: Business Support Services in California reached a record high of 62.10269 in February of 2004 and a record low of 44.00260 in January of 2024. Trading Economics provides the current actual value, an historical data chart and related indicators for All Employees: Professional and Business Services: Business Support Services in California - last updated from the United States Federal Reserve on March of 2024.