This list is not intended to reflect at all on the value to users of the hosts listed here.
This list is merely to let users hosts tested and found to be compatible with plugins, latest versions plus the older verions where the VST2 parameter store/restore problem was fixed.
Samplitude Pro X3 Suite
Harrison Mixbus32c version 3 and Mixbus4
SONAR X3, X2
Bitwig 2.2 (reported by a user)
FL Studio 12 : Needs to be retested…
Mixcraft 8 Pro Studio
Cantabile 3 Lite