Board Thread:General Discussion/@comment-2600:8805:3B02:6150:B9FB:92A:BC68:B50-20180410030016/@comment-4010415-20180410031144

Ahh.

Actually, Shade, Beacon, Haven, and Atlas are the Huntsman Academies, not the combat schools.

Signal and Sanctum are combat schools.

They haven't mentioned Vacuo's combat school, but the writers actually said in a Q&A that each academy has multiple combat schools and one Huntsman Academy, so I think you can honestly just make up a combat school.