Office Location

3029 Commercial Avenue Northbrook, IL 60062-1912
Phone: (847) 480-2370
Fax: (847) 480-7437



In 2016, Madison Sales Group celebrated their 70th anniversary of being in business. Our success has been built on quality customer service and high quality products for great prices. George Denenberg was there from the beginning, starting a family tradition that continues today.

George, who was the youngest of three children, was raised by his mother on Chicago’s West Side. His father had died when he was only two and a half. From these humble beginnings, a desire and determination for success was born. After returning from the military, George worked at a pawnshop where his education and understanding of precious stones and the jewelry business began. In 1946, Madison Sales Group (MSG) opened at 22 West Madison Street in Chicago’s business district, “The Loop.” Later, their offices moved to 29 East Madison Street right in the heart of Chicago’s historic Jeweler’s Row. In 1985, Madison Sales Group moved to Northbrook, where it is to this day.

George’s son Marc, a certified gemologist through the Gemological Institute of America (GIA), joined the business in 1982. Through our long time customer relationships, their needs helped to develop and expand our business by adding an additional focus. We created a division that focuses on brand marketing and custom promotional items. Madison Sales Group Brand Marketing continues to provide the same focus on providing quality customer service and high quality products for great prices to their customers today. We have a creative team who can provide your company with innovative ideas to promote your brand.  MSG services customers all other the United States and around the world. We utilize our overseas contacts for some of our custom items and by having a Quality Control Manager based in China. Our Quality Control Manager can ensure you are pleased with our results. MSG Account Managers can also assist you by providing ideas that will work well with the concept you want to use in promoting your business.

Marc’s son Adam joined Madison Sales Group, continuing the family tradition!  Madison Sales Group looks forward to assisting your needs too!

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