CaptiveAire Systems is the largest privately held manufacturer of commercial kitchen ventilation systems in the US and a manufacturer of HVAC equipment. The company, founded by Robert L. Luddy in 1976, is headquartered in Raleigh, North Carolina. Since its inception, the company has expanded from fire suppression to a wide array of products including exhaust, pollution control, fire suppression and prevention, HVAC, and utility distribution. In 2018, CaptiveAire brought in over $500 million in revenue.