Denver Auditor's Office

Denver’s Auditor, Timothy M. O’Brien, CPA, has more than 40 years of auditing and accounting experience. Auditor O'Brien strives to bring greater clarity, transparency, and accountability to Denver's city government for its residents. 

Elected as the Denver Auditor in 2015, Timothy O'Brien is distinguished from his predecessors by being an actual professional auditor. He is a licensed Certified Professional Accountant and holds the designations of Chartered Financial Analyst and Chartered Global Management Accountant. 

Denver’s Auditor is publicly elected and answers to the voters. The role of the Auditor – and internal auditing functions in general – is to help minimize risks, improve internal controls, maximize efficiencies, and strengthen accountability.