Cooperative Educational Service Agency #9 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) Fidelity Investments - Plan Number: 72355(800) 343-0860 Vanguard Investments - Plan Number: 433270(800) 569-4903 WEA Tax Sheltered Annuity(800) 279-4030