Swissport
I was on last Friday's LH953 to FRA with a scheduled pushback of 08:50. The inbound was on time yet, as usual, the ground handling people seem incapable of turning round a plane in the allotted time.
We started boarding as soon as the cleaners were finished at 08:37 and passengers were still coming on board at pushback time. The captain then announced that we had missed our slot because the ground handlers had failed to provide a tug in time. As a result we did not push back until 09:44, a delay of 54 minutes.
Before anyone flames me and says that ground handlers are wonderful, hard working people, I know that many of them are. However, Swissport seem to be taking a couldn't care less attitude due to their monopoly and not only were passengers on my flight inconvenienced (missed connections etc) but many others were as well. The same aircraft operated the 954 and 955 to and from BHX resulting in a 3hr 35min delay in departure of the 955.