On September 9, 2023, Keystone's Mac Shack, The Stretch, and Killer Queen will donate 9% of sales to the Joe Burrow Foundation to help the underprivileged and underserved.
On March 3 and March 4, 2022, all 4EG locations teamed up to raise $10,461 for United Help Ukraine, an organization that provides medical aid and humanitarian relief Ukrainians.
Keystone's Mac Shack participated in Taste of the Bengals at Paycor Stadium on August 30, 2023, benefiting the Freestore Foodbank. They brought 3 varieties of mac + cheese to the event!