Founded in 2003 by former U.S. Air Force serviceman Edward Nelson, Nelson Controls LLC makes customized HVAC and industrial valves after beginning as a valve distributorship. Based in Manorville, New York, the company is known for developing a heavy-duty non-rising stem globe valve designed to address seat leakage, corrosion, and demanding steam service conditions. Nelson Controls also provides custom engineering, field-service maintenance, and customer training alongside its valve products.