[1] As of 2022[update], its approximately 72,000 employees work in 152 production plants and 12 major research and development centers in Germany, Great Britain, the United States, Brazil, Japan, China, India, Poland, Romania, Spain, and Slovenia.

In 1924, the company merged with Chemische Fabrik Griesheim-Elektron, the inventors of the magnesium alloy Elektron,[5] and was renamed Elektronmetall GmbH.

The Fellbach plant accounted for 70% of Germany's output of magnesium, aluminium and zinc alloy pressure die castings.

In 1964, Hermann and Ernst Mahle decided to waive private ownership in their company and make it part of a foundation for public benefit.

In 1976, Mahle made the first series-production aluminium engine blocks in Europe using low-pressure die casting.

In 1988, their composite camshaft was enhanced to production standards, and in 2001, they developed a cooling system for diesel engine pistons in high-speed passenger cars.