Structural Engineer vs Foundation Repair Company

[Brandon Low]

I had a car drive through my property last week and there is a big whole in the side of my house. You can see the thread that I started over here:

http://www.biggerpockets.com/forums/52/topics/1984...

I need to get somebody out there to evaluate the damage, but I am not sure who is right for the job. Can I just get a foundation repair company to evaluate the damage or do I need a structural engineer to write a report? Are they the same thing? 

I've read that if I ever wanted to sell the house, I would need to have a report from a structural engineer showing what is wrong, and proof that I have fixed it. Would using a foundation repair company be good enough?