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About Dennis R Wencel CPA

The firm of Dennis R. Wencel, CPA has been providing quality accounting services to local small businesses for over 30 years. We assist our clients by continually delivering our brand of quality service, experience and analysis to put them in the best financial position allowable under current tax law. We voluntarily adhere to stringent peer-review audits governed by the Illinois CPA Society as a demonstration to our commitment to excellence.

Though our core competency is in meeting your accounting and tax requirements our ultimate goal is to help your business thrive. We customize our services to meet your specific needs and work with our clients to help solve other business challenges. This includes assisting you in identifying other professionals or services you may require. We can recommend a network of insurance, banking, legal, financial planning and other specialized professionals to provide the support required to ensure your business continues on the path of success. 

Our Mission
Our mission is to support our clients in understanding and maintaining financial viability in the present while taking a proactive approach to achieve future goals. We hold closely our commitment to an open-communication relationship with each client so we can reach an understanding of their needs on an ongoing basis thorough research, follow-up and sound analysis. The firm of Dennis R. Wencel, CPA is dedicated to meeting these goals with high standards of excellence and professionalism. We are not your vendor, we are your partner.

Our Team
Dennis Wencel, CPA
The firm of Dennis R. Wencel, CPA, was founded in 1980 to serve individuals and small businesses in Naperville, Illinois and the surrounding area. Prior to starting the firm Dennis worked for Western Electric, Western Business Services and Thomas Havey CPA LLP Chicago office. Dennis graduated with a degree in accounting from University of Illinois Chicago and maintains a CPA in good standing license from the Illinois Department of Financial & Professional Regulation. Dennis is a member of the Illinois CPA Society, the American Institute of CPAs and the National Society of Tax Professionals. Dennis in an active member of the community and has been volunteered for the DuPage County Fair Board for a number of years.  

Katy Aleccia
Katy Aleccia has worked with the firm since 1990 serving as bookkeeper and office manager. She monitors and maintains the flow of work through the office as well as serving as the first point of contact for all clients. Katy has expertise in QuickBooks processes and functions, and recordkeeping and bookkeeping best practices.

Our Associates

Dennis R Wencel, CPA is proud to be partnered with Trimarco, Radencich LLC to provide a complete line of accounting, bookkeeping and tax related services. Our team is comprised of tax specialists for all business types and situations. So weather you're a small business just starting out or a midsized company in need of more comprehensive tax services we can meet your needs.

FREE 30 Minute Consultation

We can help you be more successful by removing the headache and worry surrounding your tax requirements keeping you focused on running your business. Call us today at 630-355-7980 to set up your free 30 minutes business consultation. You will meet one on one with an accountant who will confidentially review your financial situation and explain how we may be of assistance.  

From start-ups to established companies, businesses rely on accurate and insightful financial information to maintain profitability and capitalize on new opportunities. Dennis R. Wencel, CPA 's accounting services will direct you closer to these goals with detailed record-keeping and reporting as well as support on financial issues such as accounting system setup, cost-containment, tax planning, investments, and employee benefit and profit-sharing plans.