Our product development team is regularly working alongside today's best third-party controller manufacturers to confirm compatibility!
You can find our up-to-date compatibility guide here:
https://www.kontrolfreek.com/pages/compatibility-guide
Also please keep in mind that any third-party controllers that have identical dimensions to the default OEM analog sticks will also be compatible with our thumbsticks.
Should you have any suggestions on any other third party controllers for our product dev team to test, please submit a ticket to our support team! They'd be happy to pass the message along.
GLHF!