GreatAmerica Bank National Association
A Community Bank Built on National Strength
Our Story
For years, GreatAmerica Bank operated as Heritage Bank, a trusted community institution known for the same friendly faces and dependable service that customers have built relationships around. In 2026, Heritage Bank became GreatAmerica Bank N.A., gaining a national bank charter and a broader set of capabilities, without losing what made it a community bank in the first place. The name on the door has changed, but the people, the values, and the commitment behind it have not.
Executive Leadership
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Adrian Golobic
Chair of the Board
Adrian Golobic is Chairman of the Board of Directors for GreatAmerica Bank, providing strategic governance and fiduciary oversight for the institution. In addition to his board leadership, he has managed Golobic Holdings, LLC since 2019, directing the family office's investment strategy, asset allocation, and portfolio management.
Previously, he spent a decade in mainland China, where he built, partnered in, and operated multiple international enterprises. This includes co-founding CloudBridge - Media by Design, which led strategic tourism marketing and consulting services from 2012 to 2019.
Through his entrepreneurial ventures and investment background, he brings rigorous balance sheet management, long-term alignment, and business modeling perspective to the Board. His experience in scaling operations, entering new markets, and driving customer acquisition directly supports GreatAmerica Bank's continued growth and institutional stability.
He holds a Master of Business Administration with High Honors (Wallman Scholar) from the University of Chicago Booth School of Business and a B.A. in Philosophy from Cornell College.
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Martin Golobic
Chief Executive Officer
Martin Golobic, Chief Executive Officer, is responsible for leading strategic leadership and company culture as we continue to evolve further into a digital business.
Martin has served in multiple functions within GreatAmerica that include Credit Analyst, Vendor Relationship Manager, Regional Account Manager, National Account Manager, and Director of Operations – New Strategic Opportunities and Vice President and General Manager of our Connected Technology Group.
In his current role, Martin will set our future vision of products, services and business units for GreatAmerica, IRH Capital and all subsidiaries as we respond to market changes, emerging innovations and digitally enabled business solutions.
Martin earned his B.A. degree in Economics from Colorado College. He is an avid pilot, fills his spare time with his children's activities and has served on several boards including the Cedar Rapids Museum of Art Board of Trustees and Cedar Rapids Opera Theatre.
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John Turpen
President
John G. Turpen, President, is an experienced banking executive with over 28 years in the banking industry and a demonstrated history of attracting, developing, and maintaining talent to effectively manage bank risk, activities, and operations.
Previously, Mr. Turpen served as the Executive Vice President and Chief Risk Officer of Independent Bank Group, Inc. (NASDAQ: IBTX) from July 2021 to January 2025, where he was responsible for leading the independent corporate risk function, which oversaw strategic management of all financial and non-financial risks throughout the company. Prior to joining IBTX, Mr. Turpen was Chief Risk Officer of Texas Capital Bank from September 2018 to February 2021 and of Texas Capital Bancshares, Inc. (NASDAQ: TCBI) from January 2019 to February 2021. From April 2016 to September 2018, Mr. Turpen served as Chief Risk Officer for corporate and commercial banking at U.S. Bancorp (NYSE: USB). Mr. Turpen joined USB in 2009 after holding increasingly senior positions in credit, risk and strategic planning at HSBC and Wells Fargo.
Mr. Turpen received his B.A. in Finance and his M.B.A. in Accounting from Drake University.