Searching for Scanners/MFDs with Native 64-bit TWAIN Drivers

I’ve been searching for companies that developed native 64-bit TWAIN drivers for their scanners, but I seem to only find drivers that work with WoW (I’m assuming those drivers are 32-bit). Is development of native 64-bit TWAIN drivers uncommon? Other than searching for drivers of various scanners, is there a centralized source where I could find this? This is anecdotal, but tech support people for scanner manufactures don’t seem to understand the difference between an OS’s bit version and the driver’s bit version. So I’m skeptical of the information they’re giving me.

Question by Jade Cowan on Super User, licensed CC BY-SA. We show a short excerpt and link to the original thread as credit.