Williams & Williams CPBs, Certified Public Bookkeepers is a leading provider of bookkeeping, payroll, and QuickBooks setup, training, and support services. Our bookkeepers are Certified Public Bookkeepers (CPB), Certified Payroll Specialists (CPS), and Certified QuickBooks Advisors (CQA), certified by the National Association of Certified Public Bookkeepers. Based in Aurora, CO, we perform public bookkeeping and payroll services and help QuickBooks users use QuickBooks to manage their businesses more effectively.