Montgomery 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 ASPire Financial Services(866) 634-5873 Horace Mann Insurance Company(800) 999-1030 Kades-Margolis Corp.(800) 433-1828 Security Benefit Group(800) 888-2461 The Legend Group-A Lincoln Investment Co(888) 883-6710 Vanguard Investments - Plan Number: 429390(800) 569-4903 457(b) ASPire Financial Services(866) 634-5873 Horace Mann Insurance Company(800) 999-1030 Kades-Margolis Corp.(800) 433-1828 Security Benefit Group(800) 888-2461 The Legend Group-A Lincoln Investment Co(888) 883-6710