Tim Seigler

Tim Seigler

Managing Director; Third-Party Attestation Regional Leader


BDO Atlanta Office



Executive Summary

Tim Seigler is a managing director and the regional practice leader for BDO’s Third-Party Attestation practice. With more than 15 years of professional experience serving an array of clients in the financial services, healthcare, technology, and not-for-profit/higher education industries, he is responsible for the coordination and execution of BDO’s third-party attestation services throughout the Southeast.

Prior to joining BDO, Tim served as a director in the Technology Risk practice of a Big Four firm, leading and executing IT audit and third-party attestation engagements throughout the U.S. and Europe.

Tim has also served as an inspector for a firm’s internal inspection process as well as a lead facilitator at national training events for the it audit and third-party attestation service lines, including development of training courses and thought leadership for the practice.

Tim is an active member of University of Georgia’s MIS Advisory Board, and has been a guest lecturer at University of Alabama, University of Florida, and University of Georgia on IT audit topics, as well as a guest speaker at local Atlanta chapter meetings for the Information Systems Audit and Control Association (ISACA) and Institute of Internal Auditors (IIA).

Professional Affiliations

Information Systems Audit and Control Association
Institute of Internal Auditors
Technology Association of Georgia


B.B.A., Management Information Systems, University of Georgia

Community Involvement

UGA MIS Advisory Board