This pub concept thrives with a large tap selection and high-quality, highly customizable burgers. Now it’s taking steps to grow on a larger scale.

There aren’t many places in the United States with a stronger pub culture than Wisconsin. If you’re able to launch a successful beer-and-burger pub chain there, you’re probably onto something. Mr. Brews Taphouse, then, is a clear success story.

The 16-unit concept, which opened its first location in 2013 in Weston, Wis., is the brainchild of Steve Day, a first-time restaurateur with an entrepreneurial background. Though today’s tagline didn’t exist at that time, it sums up core elements of Mr. Brews from the start: “Where the perfect burger meets your new favorite beer.”...