West Mifflin 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) American Funds(800) 421-0180 Corebridge Financial (formerly AIG Retirement Services-VALIC)(800) 448-2542 Kades-Margolis Corp.(800) 433-1828 Lincoln Investment Planning, LLC(800) 242-1421 Vanguard Investments - Plan Number: 437799(800) 569-4903 457(b) Corebridge Financial (formerly AIG Retirement Services-VALIC)(800) 448-2542 Kades-Margolis Corp.(800) 433-1828 Lincoln Investment Planning, LLC(800) 242-1421