1 Company in Beachwood, Ohio

Eaton was founded in 1911 by two entrepreneurs who invented a better truck axle — and the company made its name supplying axles and superchargers to early automakers. But its modern identity came from a different bet: in the 2000s, Eaton transformed itself from a diversified industrial into a focused power management company, culminating in the 2012 acquisition of Cooper Industries, which made it a global electrical giant. The business now centers on electricity in every form: electrical equipment (switchgear, circuit breakers, and the transformers that distribute power in buildings and data centers), aerospace (hydraulics, fuel systems, and actuators for commercial and military aircraft), and vehicle (transmissions and drivetrain components for commercial trucks). Its data center power business has boomed with the AI buildout — Eaton's uninterruptible power supplies and power distribution racks are in high demand as hyperscale data centers consume ever more electricity. Legally headquartered in Dublin (operationally in Cleveland, Ohio), with about 85,000 employees and annual revenue near US$23 billion, Eaton is riding the electrification of everything. For facility managers and data center operators, Eaton is the supplier whose name is on the electrical gear that keeps power flowing — the company that turned a truck part maker into an electricity infrastructure player.