TOP AG is a farmer owned cooperative serving a multi-county area in southwestern Illinois covering the entire area east of St. Louis. We have grain facilities located in Addieville, Mascoutah, Okawville, Pierron, St. Libory and Trenton. Total storage capacity of all seven locations total +7 million bushels. The Okawville, Pierron and Trenton locations also offer seed, fertilizer and chemicals along with related services of delivery, custom application and grain trucking. In addition the Trenton facility operates the region’s leading dairy feed mill, while bagged feed products are available at all locations. TOP AG also operates a lumber yard at its Okawville location.