Dennis G Koch & Associates LLC, CPAs was established in May 2007 as a sole proprietorship, becoming an LLC in 2017. With over 35 years of experience in practice, our firm specializes in audits of electric cooperatives and independent telephone companies, not-for-profit organizations, small businesses and governmental entities.

We are licensed in the states of Illinois and Missouri. Managing member, Dennis Koch also carries certification as a Government Financial Manager (CGFM) issued by the Association of Governmental Accountants (AGA). The firm has been peer-reviewed every three years, the most recent review occurring in 2018. The Firm holds membership in the American Institute of Certified Public Accountants, including the Private Companies Practice Section and the Government Audit Quality Center. The firm is also members of the Illinois and Missouri CPA Societies.

Whether you need an audit to comply with a loan agreement or receive millions in federal financial assistance, our firm has the experience to complete your audit on a timely basis in compliance with current requirements of the Auditing Standards Board, Government Accountability Office (GAO) or Office of Management and Budget (OMB).

In addition to the audit, our services include tax and regulatory reporting for businesses and not-for-profit organizations, annual financial reports, and gross receipts tax returns for the IRS, state departments of revenue, state education departments and Illinois Commerce Commission.

Using the latest technology in paperless audits, our audit approach is to use risk-based analysis in determining the testing and sample sizes necessary to provide the confidence that your audit meets the ever-changing audit requiem.

Dennis Koch Resume