Friedhelm Loh
Manufacturing · Haiger
Net worth
$14.6B
Today
+$223+0.00%Past month
−$46M−0.32%As of Nov 11, 2026, 1:50 PM EST
Friedhelm Loh's group of companies provides software, products and services to industries including switchgear manufacturing and utilities. His largest company, Rittal, supplies electrical enclosures, climate-control technology, power-distribution gear and IT infrastructure. He inherited the business from his father, Rudolf, who invented the first mass-produced enclosures for electrical control systems. Today, the group has over 12,000 employees, 100 global subsidiaries and annual revenue of around $3 billion.
Net worth over time
Principal holdings
1 positions| Company | Industry | Share | Value |
|---|---|---|---|
Private holdings | Manufacturing | 100.0% | $14.6B |
Also known for
- Loh collects antique cars and publishes religious literature through his Christian Media Foundation.
- In 2011, he committed $6.8 million to establish the Rittal Foundation, supporting educational, social and scientific projects.
“Stagnation means regression.”

