Lamar County Board of Education 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) Corebridge Financial (formerly AIG Retirement Services-VALIC)(800) 448-2542 PlanMember Services(800) 874-6910 Security Benefit Group(800) 888-2461 TIAA(800) 842-2252 457(b) Corebridge Financial (formerly AIG Retirement Services-VALIC)(800) 448-2542 PlanMember Services(800) 874-6910 Security Benefit Group(800) 888-2461 TIAA(800) 842-2252