After 41 years: Marcus Müller is leaving McDonald's in Korbach!
On August 1, 2025, Arndt Heiderich took over the McDonald's restaurants in Korbach and Diemelstadt from Marcus Müller.

After 41 years: Marcus Müller is leaving McDonald's in Korbach!
There are fresh changes at McDonald's in the small town of Korbach and the neighboring Diemelstadt. On August 1, 2025, Arndt Heiderich took over the two restaurants. Where Marcus Müller previously worked as a franchisee, a new chapter is now being opened. Müller, who has been active in these branches since 1999 and became an independent franchisee in 2009, has decided to leave his company for personal reasons.
Marcus Müller's story is an impressive one: he had been working in various McDonald's restaurants since 1987 and later took over his father's business in the second generation. After 41 years of service, he now wants to take more time for his family. Despite his farewell, Müller looks back positively on his time and appreciates the collaboration with his team and the contact with the guests. HNA reports that he has always valued his enjoyment of the work and the memories he has created mean a lot to him.
New leadership, new impulses
Arndt Heiderich will hold the reins in the future and already has a lot of experience, as he now manages a total of 14 McDonald's restaurants in East Westphalia-Lippe and neighboring regions. With around 650 employees, including 13 trainees, Heiderich relies on dynamism and further development in his team. Under his leadership, the two locations in Korbach and Diemelstadt will not only remain in place, but will also be revitalized with new ideas. It is particularly important to him to continue Müller's legacy with respect and to support the existing team in everyday life.
One of the first actions will be to review restaurants to identify potential investments. While the location in Diemelstadt was only extensively renovated at the end of 2024 and is now digitally optimized, it remains to be seen what measures Heiderich is planning for Korbach.
The McDonald’s franchise model
The McDonald’s franchise system plays a central role in the restaurant world. Founded by Ray Kroc, it is now considered the most successful franchise model in the world. In Germany, over 70% of the 1,264 McDonald's restaurants are operated by independent entrepreneurs who are willing to undergo a rigorous selection process. förderland.de explains that franchisees usually have to invest between 70,000 euros and 600,000 euros and are obliged to pay a fee of 5% of net sales. This structure allows franchisees to maintain their own identity while benefiting from a proven business model.
With the change in Korbach and Diemelstadt, it remains to be seen what effect the new circumstances will have. It remains to be seen whether the team will continue to grow under Heiderich and what new offers will be available to guests in the future. However, one thing is certain: McDonald's in this region remains an interesting place for those who want to enjoy good food in the fast food style.