On 27 January 1906 the Grain Growers' Grain Company (GGGC) was founded as a cooperative company to handle marketing of the grain, under Partridge's leadership.
Partridge resigned as president of the GGGC at the 1907 convention, in part because the company's original cooperative structure had been modified to meet the requirements of the Grain Exchange, in part because he was not interested in running the company he had launched.