Mount Union Area School District 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) Ameriprise Financial(800) 862-7919 Brighthouse Life Insurance Company(800) 638-5433 Horace Mann Insurance Company(800) 999-1030 Kades-Margolis Corp.(800) 433-1828 Metropolitan Life Insurance Company(800) 504-0740 Security Benefit Group(800) 888-2461