Alltask are on there and can't get men to go there, all their men live in kent, I'm sure if you ring the office and ask for Nick mills, I'm sure he will start you there.
Palmers have work there, it used to be a chap called Spencer Malone or Nick someone who were the contacts.
They also had work at Gatwick an old boy was in charge there can't remember his name though, I worked down there for an agency couple of years ago.