Firm Profile

compassOur People

The people at Detterbeck Johnson & Monsen (DJM) share the same entrepreneurial spirit as our clients. As shareholders of the firm through our employee stock ownership plan, our team can relate firsthand to the issues today's business owners face.  We bring new ideas to the table and are committed to helping clients look beyond the numbers to see the true condition of their businesses.  Our accountants have diverse backgrounds, but share the ability to think creatively and uncover the root cause of problems.


Our Clients

DJM specializes in serving the accounting and tax needs of closely-held businesses. We provide hands-on assistance to business owners - helping them to increase productivity, improve operations, and plan for the future.  For over 40 years, Detterbeck Johnson & Monsen has helped clients navigate through the complexities of business to achieve their goals.  Understanding client objectives and showing them the best route to get there has helped us build strong relationships, many of which have lasted for 30 years or more. Industries served include:

            • Manufacturing
            • Distribution
            • Real Estate
            • Transportation/Trucking
            • Architects
            • Wholesalers
            • Professional Service Providers
            • Physicians
            • Contractors


Our Resources

Today's businesses need to draw upon a variety of resources to remain agile and competitive.  Detterbeck Johnson & Monsen has developed strong relationships with local banks, law firms, and other service organizations, including the Technology & Manufacturing Association (TMA), Alliance of Mergers and Acquisitions and National Association of Certified Valuation Analysts (NACVA), as well as the Illinois CPA Society, the American Institute of Certified Public Accountants (AICPA) and Private Companies Practice Section (PCPS).  Our involvement in these organizations allows us to help our clients obtain the assistance they need to address business issues that may expand beyond accounting and tax matters.