CV:
Bachelor's degree in Business Administration (2018-2021) with a focus on Industrial Management at the Dual University of Baden-Württemberg. Subsequently, completed a Master's degree in Financial Management (2021-2023) with a focus on Accounting & Taxation at the University of Trier, including a 10-month study abroad (2022-2023) at Clark University (Worcester, USA).
During the Bachelor's studies, worked as a trainee at an industrial company (2018-2021). In parallel to the Master's studies, worked as a working student at a robotics startup in the areas of Controlling and Finance (2021-2023), and interned at a Big4 auditing firm in the Audit & Assurance department (2023).
From October 2023 to April 2025 employed as a Professional in the Audit & Assurance department at a Big4 auditing firm, and since May 2024, pursuing a Ph.D. as a research assistant at the Chair of Corporate Governance and Auditing.
Research:
- Auditing
- Corporate governance
- Concentration development of the audit market
- Audit regulation
Publications:
Koch, C., & Köster, C.-A. (2025). Langfristige Entwicklung des Prüfungsmarkts in Deutschland. Eine Analyse von CDAX-Unternehmen (2005 bis 2023). WPg – Die Wirtschaftsprüfung, 78(10), 527-535
Contact:
E-Mail: celina-ann.koester@uni-mainz.de
Room: 01-141
Visiting hours: upon prior appointment