
I am currently on a tier-2 visa and would like to switch to GTV.
I received an endorsement letter from my employing university, that looks something like this:

When filling the application, I need to choose an endorsement body from the list:

Asking university HR were unhelpful and didn't know what's the correct choice, can someone here help?
(For context, if it matters, I'm a permanent contract lecturer and have finished my probation.)