That's exactly what trademark doesn't cover. If it's different industries with no overlap it's fine.

I have a Delta scroll saw at the house, and I've flown to Atlanta on Delta. They're different companies sharing a name, but that's okay because their products don't overlap.

A more interesting example is Apple. Apple Records and Apple Commputers got info a trademark kerfuffle in the 2000s when Apple Computers started selling music on iTunes.