River Valley 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) American Fidelity Assurance Co.(800) 654-8489 Invesco OppenheimerFunds(800) 959-4246 Kades-Margolis Corp.(800) 433-1828 Nationwide Insurance Company(800) 848-6331 Vanguard Investments - Plan Number: 437756(800) 569-4903 457(b) American Fidelity Assurance Co.(800) 654-8489 Kades-Margolis Corp.(800) 433-1828 Roth 403(b) Invesco OppenheimerFunds(800) 959-4246 Kades-Margolis Corp.(800) 433-1828 Nationwide Insurance Company(800) 848-6331 Vanguard Investments - Plan Number: 437756(800) 569-4903 Roth 457(b) Kades-Margolis Corp.(800) 433-1828