Mosinee 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 Equitable(800) 628-6673 Fidelity Investments - Plan Number: 65891(800) 343-0860 Security Benefit Group(800) 888-2461 Thrivent Financial(800) 847-4836 WEA Member Benefits(800) 279-4030 Roth 403(b) Equitable(800) 628-6673 Fidelity Investments(800) 343-0860 Security Benefit Group(800) 888-2461 WEA Member Benefits(800) 279-4030