Based in Grand Rapids, Michigan, GTBK Marketing is a practice management and marketing firm specializing in services for professionals in the financial industry, such as attorneys, CPAs, financial advisors and insurance agents. GTBK Marketing offers a variety of business coaching and marketing products, from intellectual property and strategies to physical materials for marketing. GTBK Marketing also provides financial industry specific support services including customized mailing lists and services; software licensing and support, even printing and copying services. Finally, GTBK Marketing offers advanced training programs for financial professionals, including seminars which teach how to utilize specific intellectual property developed by the firm and other industry leaders.

With the help of CEO Dennis Tubbergen, GTBK Marketing has become a premier provider for consulting, marketing, strategies, training and services to more than 24,000 professionals. Having over 25 years of experience in the financial services industry to bring to the table, Dennis Tubbergen is known as one of the top financial professionals in the country. As the leader of GTBK Marketing, Dennis Tubbergen takes an 'in the trenches' approach to directly consult with clients, helping them to meet their business and marketing goals.