These U.S.-born dogs aren’t just loyal—they’ve got job titles, responsibilities, and zero chill when it comes to slacking.

Some dogs were bred to nap and wear sweaters. Others clock in at sunrise, outwork everyone in a four-mile radius, and still want more. The American-born breeds on this list don’t know what a weekend is. They’re chasing, guarding, pulling, herding, and solving problems faster than most humans can open a group chat. These dogs aren’t just pets. They’re coworkers—minus the complaints and coffee addiction.