Bremer Bank Has Roots in the Places Where We Live and Work That Go Back to 1943, and a History of Stepping up for Our Customers and Communities That Begins with Our Founder. Otto Bremer Believed That If Banks Helped Businesses in Good times and Bad, Communities Would Thrive. Today, We’re Proud to Work with the People Who Grow Our Food, Build Our Economy, and Serve Our Neighbors. We Offer Banking, Mortgage, Investment, Wealth Management, Trust and Insurance in Minnesota, North Dakota and Wisconsin. We’re Here to Help You Solve Your Toughest Problems, Seize Your Biggest Opportunities, and Achieve Success on Your Terms, Now and in the Future.