It has more than 900 patents, specializing in soybean and corn genetics, is based in the small town of Adel, Iowa, and is almost entirely owned by Harry Stine and his four children.

[1] In 1997, they entered into a large-scale collaboration with Monsanto, focusing on increasing corn and soybean yields.

[4][5][6] In 2018, a lawsuit was filed against the company by a group of black farmers who allege that they were deliberately sold inferior seeds.

[9] It is the world's largest private seed company, has 15,000 acres of Iowa farmland and is almost entirely owned by Harry Stine and his four children.

[3] Stine Seed have developed high-density corn varieties, with shorted plants but planted 8-12 inches apart, rather than 42 inches apart when horses were used, allowing for average yields of up to 300 bushels per acre.