Address. 257 East Town Street, Suite 457, Columbus, Ohio 43215-4626 ; Phone. . Participants with questions should contact the Service Center at 877.644.If you have questions, contact Ohio Deferred Compensation. Now is the time to GET STARTED. Your pension and your Ohio Deferred Compensation account are here to provide you with retirement income when you stop working. For further information, the employee should contact our Service Center at and press 3 to speak with an Account Executive. You can call me at 419.290. Employers with questions or needing assistance should contact the finance department of the. This document provides an introduction to the process and instructions to complete this Request for Proposal (RFP). Objectives.