Erwin Franz Müller is a German businessman, the self-made billionaire founder of the Müller Ltd. & Co. KG (commonly known as Müller), one of the largest drugstore and retail chains in Europe. Born circa 1933, his career began in a specialized trade: he was a trained hairdresser and later a travelling salesman.

Müller founded his company in 1953 in Ulm, Germany, initially as a hairdressing salon. His strategic vision centered on discount retail and diversification. Recognizing the immense, untapped opportunity in the retail sector, he quickly pivoted the business model to include a vast range of cosmetics and drugstore products (often over 50,000 items), pioneering the concept of the modern German retail chain.

Erwin Franz Müller's career is defined by aggressive expansion and vertical integration into new retail concepts. The company opened additional outlets in Munich and Karlsruhe and began construction of a corporate headquarters in 1976. By 1978, annual revenue crossed 100 million D-Mark for the first time.

Under his leadership, Müller expanded rapidly across Europe, including Austria, Switzerland, Croatia, Hungary, and Spain, growing to over 900 locations and employing over 35,500 people. Müller successfully diversified into mail-order retail (Erwin Müller Versandhaus) and specialty catalogs (Baby Butt, Kinderbutt). His wealth is secured by the stable, continuous profitability of the private retail empire, which achieved €4.01 billion in revenue (2020 estimate). He remains a central executive figure, sharing management responsibility with others as the company continues to expand its European footprint.

Erwin Franz Müller's social impact is structural, stemming from Müller's role as a massive European employer (over 35,500 employees) and provider of affordable health, beauty, and consumer goods. The company contributes significantly to the retail economies of the regions where it operates.

His commitment is to the long-term, stable management of his private retail empire, ensuring its continuous growth and high-volume efficiency across Europe.

Erwin Franz Müller maintains the traditional, pragmatic style of a German industrial executive. His attire is consistently formal and high-quality, favoring tailored business suits. His aesthetic is one of serious authority and stability, befitting a multi-billion euro executive commanding a massive retail empire.

Residing in Ulm, Germany, his luxury is the immense security and financial reward derived from his multi-billion dollar fortune. His life is dedicated to industrial scale, efficiency, and the continuous growth of his essential retail conglomerate.