I believe TNT and UPS self handle. I may be wrong on these. I know FedEx definitely self handle.
But apart from them, all others Airlines are done by Swissport after they took over Servisair. As it’s been mentioned.
I have today seen the Stobart operation for the first time.
Good news for any of you who collect Stobart truck names as the new tugs here are all named.
I nice touch to the operations I think.