About Us

Our Firm

For years, Deininger & Co. Inc. has been providing quality, personalized financial guidance to local individuals and businesses. Deininger & Co. Inc.'s expertise ranges from basic tax management and accounting services to more in-depth services such as financial statements, financial planning, estate planning and retirement planning.

Deininger & Co. Inc. is one of the leading firms in and throughout Kenosha. By combining our expertise, experience and the team mentality of our staff, we assure that every client receives the close analysis and attention they deserve. Our dedication to high standards, hiring of seasoned tax professionals, and work ethic is the reason our client base returns year after year.

Our Mission

Our mission is to help clients maintain financial viability in the present, while taking a proactive approach to achieve future goals. This requires open communication to reach an understanding of our clients' needs through research and sound analysis. Deininger & Co. Inc. is dedicated to meeting these goals with high standards of excellence and professionalism. We have been a staple of Kenosha's business community for years, and pride ourselves on the level of esteem we have earned.

Our dedication to hard work has earned the respect of the business and financial community in and around Kenosha. We believe this to be a direct derivative of our talent and responsiveness to our client base. Whether you are a current or prospective client, rest assured that individuals and businesses who choose Deininger & Co. Inc. receive competent and timely advice.

Our Team

Our Focus
Family First, Then Charity
... IRS Last


Franklyn R. Deininger is an experienced Tax, Estate and Financial Planning expert with more than four decades of experience, beginning when he founded Deininger & Co., Inc. in 1965, and as a partner in the Accounting and Tax Consulting firm of Deininger, Czarnecki & Co., LLC. Mr. Deininger has achieved considerable success through his ability to develop sound tax, estate, retirement and insurance plans for his clients. Guiding his financial and estate planning services is a respect for each client - and their individual needs; and the belief that financial resources should be allocated first to family, second to charitable causes, and lastly to the IRS. Frank has clients of all ages; however his greatest satisfaction comes from helping seniors; providing solid, quality planning that gives them the carefree retirement they've always dreamed of.


Mr. Deininger's commitment to serving his clients is demonstrated through the prestigious designations he has earned, including Certified Financial Planner (CFP), Accredited Tax Advisor (ATA), Enrolled to Practice before the Internal Revenue Service (EA), Certified Estate Planning Professional (CEPP), Registered Financial Consultant (RFC), Certified Retirement Counselor (CRC). He is a graduate of Madison Business College, with continuing education in taxes, estate planning and finance to maintain his designations and further education.


National Society of Public Accountants, National Association of Enrolled Agents, Accreditation Council for Accounting and Taxation, National Association of Tax Professionals, Better Business Bureau, The Financial Planning Association, The National Senior Resource Center and National Ethics Bureau.


Michael Deininger brings over 25 years of experience in the financial services industry with experience in tax strategies, compliance issues and all other corporate matters. Michael is a Quickbooks Proadvisor and is studying to become enrolled before the Internal Revenue Service.


Melisa Deininger is instrumental as an Independant Investment Educator.

  • Deininger & Co. Inc.
  • 4721 75th Street
  • Kenosha 53142
  • Telephone: (262) 694-9560
  • Fax: (262) 697-5279