FedEx, UPS, Amazon Logistics, basically every delivery company.
I don't know about the rest of them, but your information is totally wrong about UPS. The "delivery" people are most definitely employees. Union employees, Teamsters in fact. Which means that UPS doesn't get to push them around all that easily. But which also means that the relationship is occasionally more confrontational than it should be.
Interestingly enough, at least around here, UPS is also the best delivery company. Decent prices, can get daily pickups, delivers on time, drives a company truck.
Half the time with FedEx you have no idea why a random truck is stopping to drop off a package. We also at my office always have to call them to do any pickup, the UPS guy just grabs outgoing when it delivers the incoming.
I don't know about the rest of them, but your information is totally wrong about UPS. The "delivery" people are most definitely employees. Union employees, Teamsters in fact. Which means that UPS doesn't get to push them around all that easily. But which also means that the relationship is occasionally more confrontational than it should be.
https://teamster.org/divisions/package