In addition to his work with the Make-A-Wish Foundation, Guy Fieri has worked extensively to support first responders. For example, he's cooked food for the firefighters working to put out blazes in California, as well as those displaced by those wildfires. He's also thrown parties for first responders, particularly in the wake of the 2017 shooting massacre in Las Vegas, as per Delish.

Additionally, Fieri has worked tirelessly to help those working in the restaurant industry. For one, his show "Diners, Drive-Ins and Dives" helps mom-and-pop restaurants dramatically in what's known as the "Triple-D effect." Additionally, during the COVID-19 pandemic, Fieri helped to raise over $20 million for struggling restaurant workers, as noted by Grub Street. "I've been through some s**t in my day ... but in a million years, you never could have told me a story as horrific, as decimating, as this has been," he declared.

And, in the wake of Hurricane Irma, Fieri wrote a check to chef José Andrés, who was on the ground in Puerto Rico feeding displaced families. Fieri cites the chef as major inspiration for his charity work, too (via Delish).