Firm Overview

In-Depth Industry Knowledge

Mann Weitz & Associates is a CPA firm dedicated to meeting the accounting, audit, tax and business advisory needs of privately held companies, professional service firms, high net worth individuals and nonprofit organizations. In fact, we are widely considered one of the premier CPA firms in Chicago for associations, foundations and charitable groups.

Commitment and Continuity

With MWA, you can count on having an experienced, engaged and consistent team helping you to capitalize on opportunities and solve your business problems. The majority of our staff members have worked in public accounting for more than 25 years and most staff have at least 5 years of experience.

Our Core Values

  • We value unyielding integrity and are honest, ethical and trustworthy.
  • We value our clients and seek to anticipate their needs and consistently deliver prompt, professional and personalized service.
  • We value collaboration and teamwork and demonstrate this through the strong partnerships we forge with our clients and with their other trusted advisors.
  • We value each and every employee and strive to provide a healthy work environment with the flexibility to achieve both professional and personal goals.


In 1994, Mark Mann and Len Weitz joined forces to create a CPA firm focused on providing proactive and personalized service, coupled with leading edge accounting and business solutions. Today, Mann Weitz & Associates is more than 25 professionals strong and remains firmly committed to its founding vision.In May 2012, after fighting a brave battle against cancer, Len Weitz passed away. Len can never be replaced and is deeply missed by all who worked with him. He had legendary business skills and was a caring and compassionate mentor to clients as well as associates, friends and family.

Today, MWA is led by Founding Member, Mark Mann and Member Manager, Ellyn Samsky, along with two partners, Davida Finkle and Marcy Steindler – who share a commitment to ensuring that each and every client receives the service and expertise the firm is known for delivering.


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