Holiday arms BA/Virgin/TUI will take a share of them depending on location.
We had people with TC bookings re-booking with us over the weekend and risked losing any deposits rather than wait for them to go under.
The good thing about TC and why we used them was if you booked online you didn't have pay a deposit and you could pay monthly by DD. Certainly when we first started using TC the other big travel companies didn't offer this. Annoying as we've now got to wait for our money back from our holiday next year to be able to re-book with someone else.