F riedhelm Loh is a German self-made billionaire and the owner and CEO of the Friedhelm Loh Group, a diversified industrial company. The group's core and most famous business is Rittal, a world-leading manufacturer of electrical enclosures, the metal cabinets used to house control panels and other sensitive electronic and electrical equipment in factories and data centers.

He inherited his father's small business and transformed it into a global industrial powerhouse. He built Rittal into a dominant global player in its niche. The Friedhelm Loh Group also includes Eplan, a major provider of software for electrical engineering, and other industrial businesses. He is a prime example of Germany's successful "Mittelstand" of family-owned, export-oriented industrial companies. He is also a devout Christian and a major philanthropist, supporting numerous social and religious causes.