Certified Public Accountants serving Hinsdale and the surrounding communities since 1997.


Brummet & Olsen, LLP is a full-service general accounting and compliance firm specializing in accounting and taxation for successful small- and medium-sized businesses and consulting and tax return preparation for individuals. Partners Donald J. Brummet, CPA and Kedra J. Olsen, CPA have over 45 years combined corporate and public accounting firm experience. We are both Certified QuickBooks ProAdvisors, and are members of the American Institute of Certified Public Accountants and the Illinois CPA Society.

We believe in the value of relationships. We view every client relationship like a partnership, and truly believe that our success is a result of your success.

We are committed to providing close, personal attention to our clients. We take pride in giving you the assurance that the personal assistance you receive comes from years of advanced training, technical experience and financial acumen. Our continual investment of time and resources in professional continuing education, state-of-the-art computer technology and extensive business relationships is indicative of our commitment to excellence.

At Brummet & Olsen, LLP we strive to develop secure, long-term relationships with our clients where all parties can prosper and grow. Clients can be assured that as their financial counselors, we will provide the professional guidance they require and do everything possible to help them attain long-term financial success.