you are definately going to require the services of a foundation specialists. Tom is right, this job is very expensive, figure one jack about every 8 foot around the home and each jack cost $500. This is the rate in my area.
Go to the BBB and look up some foundation repair companies. Then ask for references.
But, counter to Tom, I see no need for a contractor and an engineer. With a reputable company, you can save money.