Randolph Central School Corporation 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) Metropolitan Life Insurance Company(833) 642-1008 Midland National Life(877) 586-0240 Security Benefit Group(800) 888-2461 Roth 403(b) Metropolitan Life Insurance Company(833) 642-1008 Security Benefit Group(800) 888-2461