Brendan O’Brien is a Senior Manager in the firm’s audit department. He has extensive experience providing services to a variety of clients including power and utility, gaming and hospitality, as well as retail and technology companies. In his position, Brendan oversees the performance and execution of financial statement audits, reviews and compilations of both public and private companies. He also consults and provides guidance on technical accounting issues, complexities, and updates.

Brendan believes strongly in the importance of teamwork and innovative audit procedures in order to perform efficient and high-quality audits. He also focuses to deliver exceptional client service while developing strong relationships with his clients.

Prior to his current role at MahoneySabol, Brendan served as a Senior Manager at Deloitte, where he began his career in the Hartford, Connecticut office. In his eight plus years at Deloitte, Brendan worked on integrated and non-integrated financial statement audits, quarterly reviews and regulatory compliance audits. He directly supervised managers, seniors and staff throughout all phases of the audit including planning activities, substantive and internal control testing, accounting research and reporting. Brendan was also a leader in the firm’s recruiting process and an instructor of both engagement team and office trainings.

Accreditation, Designation and Professional & Civic Activities

Brendan is a licensed Certified Public Accountant in the State of Connecticut and is a member of the American Institute of Certified Public Accountants.



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