Finding decent hauliers is a problem these days but you can try:
IRF - Stoke on Trent, use to run with them and I know they take on Subbies
Cool Solutions (Hull)
Nedexco (Rilland, NL)
Post Kogeko(NL)
Tundermann(Rotterdam/Hull/Scotland/Ireland)
Maenhout Transport - Ostende, Belgium
P&O Ferrymasters and P&O Refrigeration - Dover
Nagel Logistics - Dover
LK Walter - Austria ( must have own trailer/tilt/Euroliner)
Norfolk Line - Belfast
Rowan - (Flexible Link) - Ireland
McBurney Refrigeration (Lpool/Kells)
They are just a few that I can think of, and do pay you. Be careful with the smaller companies that you may see advertised or not heard of.You may just get ripped off. I have had dealings/worked for all of the above at one time or another and they are probably the best out of a bad bunch and you do get paid.
If you had your own fridge you may care to try O’leary Logistics in Dover or try looking on www.coolload.com (have to register). Loads for fridges and even ambient are posted on there every day.
Hope the above helps.
Cheers