Whelen

Whelen is an American manufacturer of warning lights, sirens, and related equipment for emergency and law enforcement vehicles. Founded in the mid-20th century, the company specializes in the design and production of vehicle warning devices used by police, fire, EMS, and commercial fleets. Its product portfolio includes LED lightbars and beacons, strobe and halogen lighting, sirens, public-address and intercom systems, loudspeakers, and the associated controllers, wiring, and power management hardware.

Whelen emphasizes durable, weatherproof housings and modular, upgradeable components to support varied installation configurations on ambulances, police cruisers, fire apparatus, and utility trucks. Headquartered in the United States, Whelen operates manufacturing facilities and a global distributor network to serve customers in North America, Europe, Asia, and other regions. The company is privately held and primarily serves emergency response agencies, municipalities, and commercial fleets with products designed to meet industry standards and regulatory requirements.

In addition to standard warning lighting and audible alert products, Whelen has expanded into integrated warning and communications systems, including networked control panels and software interfaces for fleet management and incident response. Whelen has historically invested in research and development to advance LED technology, energy efficiency, and reliability, helping to shape industry trends in emergency vehicle warning systems.