In 1955, the company adopted the FS trademark, which has remained in use by its member cooperatives since then.

FS Services and Illinois Grain Corporation merged in 1980 to form Growmark.

[3] It entered the northeastern U.S. market in 2002 by purchasing Agway's seed and agronomy businesses, including Seedway.

[3][4] Growmark cooperative members also operate the FAST STOP regional chain of convenience stores and fueling sites.

The retail emphasis evolved due to reduced farmer fuel usage due to adoption of no-till and minimum-till farming methods that require fewer trips over crop fields.