30 Years John Kasperek LOGO
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    A History of Success

    The Mission of John Kasperek Co., Inc. is to provide the highest level of service in all aspects of accounting to a diverse client base within the community, helping them to achieve continued financial success and growth through trusted relationships. 

    John Kasperek Co., Inc. is a leading expert governmental and nonprofit auditing and consulting firm in the Chicago Southland region. For more information about these services, please download our company profile or schedule a free consult by emailing This email address is being protected from spambots. You need JavaScript enabled to view it..JOHN KASPEREK Co, Inc BBB Business Review

    • Our Clients

      Our Clients

      Our client list at John Kasperek Co., Inc. features a wide range of significant audit work including local governments, townships, school districts, municipal pension funds, not-for-profit organizations and common interest real estate associations. In addition, we also serve a variety of small business S-Corporations, Partnerships and individuals.

      We are happy to provide contact information for referrals upon request. Here is a sample of our client list.

    • Our Staff

      Our Staff

      Our team at John Kasperek Co., Inc., Certified Public Accountants is dedicated to providing quality, personalized financial guidance to local government, not-for-profit organizations, businesses, corporations and individuals.

      Managing Partner John Kasperek, Jr. has developed our team of professionals with an excellent working knowledge of the accounting principles and current standards to provide the highest level of excellence to our clients. Well known throughout Chicagoland area for his diverse expertise in all aspects of accounting, John has built a thriving company that serves the critical needs of the south suburban and northwest Indiana region.

      Please feel free to reach out to John or the rest of our team at John Kasperek Co., Inc. any time for answers to your questions. Email This email address is being protected from spambots. You need JavaScript enabled to view it. or call (708) 862-2262.

    • Our News

      Our News

      In order to better serve our clients, partners, friends and colleagues, John Kasperek Co., Inc. will issue a new monthly digital newsletter with relevant financial and accounting information, changes to auditing standards and procedures, news and announcements from our firm. Please email This email address is being protected from spambots. You need JavaScript enabled to view it. if you would like to be added to our digital newsletter distribution list.

      Additionally, we recently created an informative, consumer-focused accounting blog titled Your Friends that Count that is posted online at www.kasperekcpa.com/friends and is distributed through Facebook and LinkedIn.

      We will post press releases, announcements and stories from our firm to our Newsroom page.
    • Our Offices

      Our Offices

      John Kasperek Co., Inc.’s Corporate Office in Mokena is conveniently accessible from I-80 and Lagrange Road. JKC’s Calumet City Office is located near Torrence Avenue, I-80 and I-94. Our primary service area reaches throughout the Chicago Southland and Northwest Indiana region.

      We travel to our clients to provide services when and where they are needed.

      9980 190th Street, Unit A
      Mokena, IL 60448
      1471 Ring Road
      Calumet City, IL 60409
      (708) 862-2262
      This email address is being protected from spambots. You need JavaScript enabled to view it.

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