There aren't that "many" other companies. Talk to KrioRus, I know they explored setting up a cryonics facility in Switzerland at some point.

Cryonics is a sufficiently desperate last grasp at life, one with a fairly small chance of success, that I'm not sure that this is a good idea. It would be a good idea if you had a disease that would make you brain dead, and then kill you.

It might be a good idea if your expect any life conditional on revival to be Really good. It would also depend on how much Alzheimers destroyed personality rather than shutting it down. (has the neural structure been destroyed, or is it sitting in the brain but not working?)