Yavapai Accommodation School District No. 99 Authorized Investment Providers For specific investment provider information, please click on the investment provider name of your choice to visit the company's website. 403(b) Teachers Pension Exchange (TPX)(888) 498-6870 457(b) Teachers Pension Exchange (TPX)(888) 498-6870 Roth 403(b) Teachers Pension Exchange (TPX)(888) 498-6870 Roth 457(b) Teachers Pension Exchange (TPX)(888) 498-6870