Raven Industries is an industrial manufacturing company based in Sioux Falls, S.D. Its three core divisions are: engineered films, which makes ultra thin and reinforced plastic sheeting; electronic systems, which provides electronics manufacturing services; and flow controls, which manufactures precision products for agriculture. Its product list includes geomembrane linings and covers, rail car covers, grain covers, fumigation covers, waste disposal liners, poultry house ceilings, window and door flashing, retarders and hog confinement ceilings. The company also provides manufacturing services and products through its Aerostar subsidiary.