Whelen Engineering Company is a U.S.-based designer and manufacturer of high-performance emergency warning, lighting, siren, and mass notification systems used by first responders, law enforcement, fire departments, EMS, utilities, and industrial fleets worldwide. Built on more than 70 years of American innovation and craftsmanship, Whelen’s vertically integrated engineering and manufacturing model ensures precise quality, rigorous testing, and dependable performance when it matters most.

The company’s extensive product lineup includes advanced lightbars, control systems, white illumination lighting, sirens, auditory warning devices, and vehicle safety platforms engineered to enhance visibility, communication, and operational reliability in mission-critical environments. Whelen’s solutions are manufactured in its U.S. facilities and supported by a deep technical team committed to innovation and customer service.

Headquartered in Connecticut with additional manufacturing in New Hampshire, Whelen serves customers globally with trusted equipment that protects those who protect others, helping keep communities safe through reliable performance and industry-leading engineering.