All Employees: Professional and Business Services: Architectural, Engineering, and Related Services in Colorado was 54.50000 Thous. of Persons in March of 2022, according to the United States Federal Reserve. Historically, All Employees: Professional and Business Services: Architectural, Engineering, and Related Services in Colorado reached a record high of 54.50000 in March of 2022 and a record low of 19.10000 in January of 1990. Trading Economics provides the current actual value, an historical data chart and related indicators for All Employees: Professional and Business Services: Architectural, Engineering, and Related Services in Colorado - last updated from the United States Federal Reserve on March of 2024.