Janie Mueller

Commercial Brokerage Coordinator

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Donna Miller

Director of Human Resources

Donna Miller is the Director of Human Resources for Gundaker Commercial (GCG). With more than 20 years of human resources and accounting experience related to commercial and multifamily property management, Donna’s knowledge in human resources, accounting and administration makes her a vital asset to the corporation....

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Mary Mercurio

CFO & Senior Vice President - Finance

As Senior Vice President of Finance and Chief Financial Officer of Gundaker Commercial Group, Inc., Mary Mercurio brings over 20 years of accounting related to the construction industry to her position. Her past experience includes working in all financial phases of commercial real estate and land...

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Mike Hejna, CCIM

President & CEO

Michael J. Hejna is President & Chief Executive Officer of Gundaker CommercialGroup, Inc. (GCG). With a background in real estate financing and development,his responsibilities include overseeing the functions of GCG as a company, with a primary focus on organization and capital formation of developments and joint...

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Roxanne Bellistri

Marketing Manager/ Research Specialist

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Gordon Gundaker


Gordon A. Gundaker is the Chairman of Gundaker Commercial Group (GCG). He has joined the organization on a full-time basis after retiring from his post as President and Chief Executive Offi cer of Coldwell Banker Gundaker, the St. Louis metro area’s largest residential real estate company, in July of...

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We Don’t Just Write Deals, WE BUILD RELATIONSHIPS!


Gundaker Commercial Group

2458 Old Dorsett Road

Suite 311

St. Louis, MO 63043