Treutlen 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) GWN Securities(561) 472-2700 Horace Mann Insurance Company(800) 999-1030 Lincoln National Life Insurance Company(800) 454-6265 National Life Group(800) 579-2878 Security Benefit Group(800) 888-2461 Transamerica Life Insurance Company(800) 317-2688 Vanguard Investments - Plan Number: 438133(800) 569-4903 457(b) Corebridge Financial (formerly AIG Retirement Services-VALIC)(800) 448-2542 Horace Mann Insurance Company(800) 999-1030