I shopped around quite a bit to find someone who would move a tank over 100g. The only place I found that was ready and willing to do it was a company called Deep Sea Aquatics. The number is (edited out). I didn't end up using them (I got a different tank and moved it myself), but he was very friendly and his price to move it was very reasonable.
I am having him come over tomorrow to help with some things, so I can give better feedback on working with him in 24 hours.
If the tank is empty, and you just need help physically moving it, the other option is a furniture moving company. That is how I got my tank from San Diego to Long Beach. The seller hired one and they were waiting at the house the day I went to see the tank. The tank I brought was completely dry though, so that might be a variable for you.