In 2006, Ryan Koga found himself in Billings, Montana, pursuing a Master’s in Athletic Training. To make ends meet, he took a job at a local brewpub—and that’s when everything changed. At 25, Ryan tasted his first "real beer," and just like that, his life was never the same. He found a new passion, one that would eventually lead to the creation of Karben4 Brewing.

Ryan’s love for craft beer only grew, and soon, he shared his newfound passion with his younger brother, Zak. Together, they decided to take the plunge and start a brewing venture. In 2012, they opened the doors to Karben4 in Madison, Wisconsin—the place where Zak had attended the University of Wisconsin. Combining Ryan's passion and Zak's drive, they had the perfect formula to bring something fresh and exciting to the Madison beer scene.

At Karben4, it’s all about high-quality beers, fun branding, and, of course, a sense of humor. What began as a small operation soon grew into a thriving business. As their beers found their way into more hands, demand grew. Today, Karben4 Brewing proudly distributes to three states, but no matter how big they get, they remain true to their roots—keeping the fun, quality, and authenticity at the heart of everything they do.

From day one, the Koga brothers have promised to give back to the community, stay true to themselves, and bring fearless creativity to every brew. Whether they’re pushing boundaries with new styles or sticking with crowd favorites, Karben4 continues to focus on delivering the best beer experience possible.

So, swing by the taproom, grab a pint, and see what Karben4 Brewing is all about. No matter where you’re from or what beer you’re into, we’ve got something special waiting for you.