Home The accounting firm of Brennan & Brosnan L.L.C. welcomes you to our website.                    Margaret M. Brennan and Betsy K. Brosnan, Certified Public Accountants, each have over 30 years experience in tax, financial and management accounting. Brennan & Brosnan L.L.C. focuses on serving the business and personal needs of the entrepreneur. For expert service from CPA's that care about you, choose Brennan & Brosnan. Proud winner of the Naperville Area Chamber of Commerce "Small Business of the Year Award"  Member: American Institute of CPA's, Illinois Society of CPA's, and Naperville Area Chamber of Commerce   The information on this site is provided solely for informational purposes and does not create a business or professional services relationship. Although we make every attempt to make this information accurate, any reliance on the information is solely at the users' own risk. Please contact either a principal at Brennan & Brosnan, L.L.C. or another experienced advisor before making any decision based upon this information. This site contains links to websites maintained by other organizations. Brennan & Brosnan, L.L.C. cannot provide any warranty about the accuracy or source of information found on any of these websites or the content of any file the user may choose to download from them.