We work with you on a personal level to determine the best solutions for your unique needs, then leverage our seasoned expertise to achieve the best possible results.


We are your trusted partner in success. Our firm is large enough to offer a full range of professional services at a fair price, but small enough to give you the individual attention that you deserve.


Rest assured that when a need arises, our firm is ready and capable to handle everything for you so you can focus on what matters most to you.

Staff Profiles

John T. Grebe, CPA, CFP, President

Since earning a degree in Accounting from Eastern Illinois University in 1980, John has worked in various financial disciplines ultimately focusing on Public Accounting. Obtaining his CPA certification in 1982, he initially worked as a corporate financial analyst and internal auditor.

After gaining invaluable experience in the corporate world, John developed a desire to become more involved with the personal side of accounting – helping clients obtain financial security and success. Taking steps to realize this dream, he earned his Certified Financial Planning (CFP) designation in addition to obtaining his securities license (Series 6, 7 and 63) in 1988.

Making the move from corporate to small business, John joined the Wheaton, Illinois CPA firm of Volpe & McConnachie in 1991. Shortly after joining the business, he became an owner/partner. In 1998 he secured full ownership, changing the name of the firm to Grebe & Associates, PC.

John and his wife Dawn have three sons and reside in Wheaton, Illinois. He is an active community member and enjoys coaching, running, cycling and reading.

Professional Memberships: Illinois CPA Society, American Institute of Certified Public Accountants.

Check the background of this investment professional on FINRA’s BrokerCheck

Jana L. Blaschak, CPA, Senior Manager, Accounting Services

Earning her Bachelor’s Degree in Accounting and CPA in 1984 from Northern Illinois University, Jana has been at Grebe & Associates since 2000. She is an expert in QuickBooks, corporate accounting, and tax preparation. Jana lives with her husband in Naperville, Illinois.

Marie McGrath, CPA, CMA, MBA, Senior Manager, Tax

Earning her Bachelor’s Degree in Accounting and MBA from Northern Illinois University in 1989, she has also earned her CPA and CMA. Marie has been at Grebe and Associates since 2015. She is an expert in corporate and individual tax preparation, as well as small business and corporate accounting. Marie lives with her husband in Bartlett, Illinois.

Cynthia Krage, Office Manager

Earning her Bachelor’s degree in Business Management in 1984 from Iowa State University, Cindy has been at Grebe & Associates since 2009. Cindy lives with her husband in Sugar Grove, Illinois.

Lora Bak, Accountant

Nimisha Nalini, Accountant