Be careful. Get recommendations. Most companies tack on tons of extra charges. One well known company had the practice of adding 13% (IIRC) charge to everything just because and Israeli small claims court said they knew him well! He was sue-happy.
If you are there while they pack and also when they load the container, you will save a lot since you can make sure that they are stuffing everything (vases, containers, washer/dryer/fridge, drawers, etc) and packing tightly, and that they are not leaving any big holes ( on top of or around boxes).