Forgot to give you the link:
http://salsacycles.com/support/faq/
Scroll just below the fold. Word is they and Surly are both owned by QBP and everything but the Ti frames are outsourced.
If you like the idea of a full-suspension 29er, you owe it to yourself to check out Lenz Sport. They happen to be U.S. made and Devin Lenz is a truly awesome guy.