Pioneer Hi-Bred is one of the world's leading developers and suppliers of plant genetics, providing seeds to farmers in more than 90 countries. Based in Grand Rapids, Ohio, it offers a range of products that includes corn, cotton, mustard, rice, wheat, sunflowers, soybeans and inoculants. The company also provides agronomic support and services to help increase farmer productivity and profitability and develops sustainable agricultural systems. It carries brands, such as Pioneer, Plenish, Optimum and Optimum AcreMax, to name a few. Pioneer Hi-Bred is a subsidiary of DuPont, a science-based products and services company.