If you consider news companies people, then yes! Haha.
Anyway, it's definitely feasible. Spark 1 Studios, for example, builds studios in shipping containers; even sells them! VocalBooth.com also does trailer studios, up to semi size. Of course, these options both entitle thousands of dollars. I have seen many builds inside shipping containers, storage sheds, etc. It is true, though, that one would need quite a bit of treatment, bass trapping especially!