It was 1979 when potato king J.R. Simplot built a 7,370-square-foot, Mediterranean-style mansion atop a prominent hill in the Boise Highlands. Although the mansion has since been demolished, Simplot’s ...

BOISE, Idaho -- The U.S. Department of Agriculture has approved Idaho-based J.R. Simplot Co.'s new genetically modified potato. But one of the company's oldest business partners -- McDonald's -- ...

Simplot Corporate Headquarters, 1099 W. Front St. in Boise. Pictured on Jan. 13, 2026. (Sarah A. Miller/smiller@idahostatesman.com) Two longtime employees of J.R. Simplot Co. took on the Boise-based ...

BOISE – Idaho is about to end its distinction as one of just a handful of states with no official governor’s residence – and do it in a striking way. J.R. “Jack” Simplot, Idaho’s richest man and a ...

BOISE – A dozen years after a customer revolt forced Monsanto to ditch its genetically engineered potato, an Idaho company aims to resurrect high-tech spuds. This month, tuber processing giant J.R.

BOISE, Idaho (AP) -- Billionaire J.R. Simplot, the spud king of America whose wealth also helped create one of the world's biggest computer chip makers, died Sunday at his Boise home. He was 99. Ada ...

The agricultural company J.R. Simplot Company, one of the largest potato producers in the world, struck a deal with the developers of a specific gene editing technology. That tech will allow Simplot ...

J.R. Simplot, a billionaire who grew up in a sod-roofed log cabin and dropped out of school at 14, then marshaled luck, spunk and inventiveness to fashion an entrepreneurial career that included ...

The Klaus Thiessen Award has been in existence since 2014, but it had never gone to an agribusiness — until this year.