I don't know if this is somewhat similar to other companies I won't name, but there's a practice of hiring contractors that work for a "contracting company" as

I don't know if this is somewhat similar to other companies I won't name, but there's a practice of hiring contractors that work for a "contracting company" as a W2, but then works "in the office" at another company. I did this a couple times. One thing I would say is that even though my contract was 6 months, the contacts you get is incredible through doing this. It also offers people a way to get a job at more stable companies without the insane interview process. Definitely helps open doors for people that would otherwise not have a chance at getting a job at the place. That all being said, if this is different from what I described, ok.