Things have grown significantly since then, as Hefty Seed Company will open its 39th store in late 2015. The company is now the 8th largest crop protection retailer in the U.S. and number 12 in seed. The Hefty Brand Soybean line is one of the fastest-growing seed brands in the country, and Hefty Seed Company is known as an industry leader for agronomic recommendations and in training agronomists.