How Harry built the fortune
Harry Stine built his wealth in a corner of agriculture that most people never see: the breeding of seed varieties. On his family's farmland near Adel, Iowa, he began selling soybean seed in the 1960s and soon moved from simply reproducing existing varieties to breeding new ones. Plant breeding is slow and costly, since each new line must be crossed, selected and tested across many seasons and locations before it can be sold, but the best varieties can be used across millions of acres. Soybeans are self pollinating, which means farmers could in principle save seed from one harvest to plant the next, so breeders depend on licensing agreements and intellectual property protections to earn returns on their work.
Stine's key business insight was that his genetics could earn money far beyond the seed his own company sold. Starting in the 1980s, Stine Seed licensed its soybean germplasm to large seed and agrochemical companies, which combined it with their own traits, such as herbicide tolerance, and sold it to farmers under their own brands. Because many soybean varieties grown in the United States trace part of their genetics to Stine breeding programs, the licensing income became a major and steady source of revenue. This model meant that Stine did not need to build a nationwide sales force to profit from its research. Royalties from licensees provided income while the company continued to sell seed under its own name in the Midwest.
The company also developed corn hybrids and promoted a particular approach to growing corn, in which taller plants with more upright leaves are planted in narrower rows at higher densities to raise yields per acre. Stine has argued that farmers can produce much more grain on the same land with plants bred for this system. Stine Seed remains a family owned business, which means his fortune is tied to the company and its farmland rather than to publicly traded shares.
Companies and holdings
Stine Seed Company is based in Adel, a small town west of Des Moines, and operates research facilities, seed production fields and processing plants in Iowa and other Midwestern states. The family also owns substantial farmland, which serves both as a breeding ground for new varieties and as an investment in its own right. Seed breeding programs like Stine's rely on test plots spread across different soils and climates, so that new varieties can be matched to the conditions in each region where they will be sold.
- Stine Seed Company, founder and owner
- Licensing agreements for soybean and corn genetics with other seed companies
- Farmland in Iowa and the surrounding region
- Research and testing operations across the Corn Belt
Early life and career
Stine grew up on a farm in Iowa in a family that raised crops and livestock. As a young man he became interested in why some soybean plants produced more than others, and he began testing and selecting plants on the family's land. He started selling seed in the 1960s and built the company step by step, reinvesting earnings into breeding programs rather than expanding through outside capital. His approach was hands on and practical, built around field observation and record keeping rather than formal laboratory research in the early years.
His work came at a time when commercial seed breeding was consolidating and large companies were investing in biotechnology. Instead of competing directly with those firms on every front, he positioned Stine as a supplier of high performing base genetics. That strategy allowed a family company from a small Iowa town to become a significant presence in the national seed industry.
Philanthropy and public life
Stine keeps an exceptionally low public profile and rarely gives interviews or appears at industry events beyond those tied to his company. Public information about his personal philanthropy is limited, though the company supports agricultural education and local community projects in the Adel area. His fortune has drawn attention because it was built far from the technology and finance centres that produce most large American fortunes.
His children have taken on roles in the business, and the company continues to be run as a family enterprise. Outside agriculture circles he remains little known, despite the reach of his seed genetics across American farmland.