Unternehmensgruppe Theo Müller began in 1896 when Ludwig Müller founded a dairy in Aretsried, Bavaria, and says it remains 100 percent family-owned. Its contact page lists a head office in Luxembourg. The group makes dairy products, fish and delicatessen foods, dressings, sauces and convenience food, and runs logistics and packaging businesses. Brands include Müller, Müllermilch, Weihenstephan, Sachsenmilch, Landliebe, Homann and Nordsee.

The group reports 35,000 employees, exports to more than 80 countries and turnover of EUR 10.3 billion for 2025. It names the United Kingdom among the markets where it shapes the industry, and Müller UK & Ireland reports nine UK sites and 7,500 employees.

Food Engineering ranks the group 45th in its 2026 Top 100 Food and Beverage Companies, with food sales revenue of $12,085 million for the year to December 2025. This figure is Food Engineering’s estimate.