Auditor's Office

Expense Report Approval Process Follow-up

Citywide Information Technology Purchases

Transparency: Public Notice & Engagement Follow-up

Airport Parking Shuttle Systems Follow-Up

Homeless Encampments

Great Hall Construction

Denver has an independently-elected Auditor to serve as a check and balance on Denver’s “strong mayor” form of government. Timothy M. O’Brien, CPA, was elected to a four-year term as Denver’s 24th Auditor in 2015 and re-elected in 2019. The Auditor’s Office is responsible for internal audit services and prevailing wage and minimum wage enforcement.

Denver’s Auditor is unique because Auditor O’Brien was elected by the people and is independent from all other citywide elected officials and city operational management. He works independently from the Mayor’s Office and the City Council to maintain objectivity and offer frank, truthful reports for the betterment of Denver.

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 on behalf of its residents and anyone who cares about our community. Timothy O’Brien is distinguished from his predecessors by being a professional auditor.  He is a licensed Certified Public Accountant and holds the designations of Chartered Financial Analyst and Chartered Global Management Accountant.