The MyHeritage tests are processed in FTDNA's lab in Houston, Texas, but MyHeritage do their own matching and interpretation.
MyHeritage also own Geni.com. You can upload you autosomal results to Geni free of charge. I've actually got more matches at Geni (26) than I have at MyHeritage (10).
I don't understand why MyHeritage don't merge the MyHeritage and Geni websites rather than maintaining them as two separate entities.