All Employees: Professional and Business Services: Business Support Services in California was 44.50000 Thous. of Persons in March of 2022, according to the United States Federal Reserve. Historically, All Employees: Professional and Business Services: Business Support Services in California reached a record high of 62.20000 in March of 2004 and a record low of 44.50000 in March of 2022. 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.