Code3 is a manufacturer of emergency vehicle lighting, sirens, and warning systems. The company's products are used by police, fire, and EMS personnel to provide visual and audible warnings to other drivers and pedestrians. Code3 was founded in 1974 and is headquartered in St. Louis, Missouri. The company has manufacturing facilities in the United States and Europe. Code3 is committed to innovation and has developed several patented technologies to improve the safety and effectiveness of its products.