Benavides ISD 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) Horace Mann Insurance Company(800) 999-1030 Midland National Life(877) 586-0240 Security Benefit Group(800) 888-2461 457(b) Horace Mann Insurance Company(800) 999-1030 National Life Group(800) 579-2878 Security Benefit Group(800) 888-2461