applications of secure multparty computation

I'm a newcomer to the field of cryptography, and I've been
doing a bit of reading on secure multiparty computation.
Now, I've seen a couple of toy examples such as dating
problem and millionare problem that use SMPC, and I've seen
some proposed applications for things like electronic
voting, but I was wondering are there any real-world
products or services currently available that actually
use SMPC? If you know of any, could you please provide me
with links to documents describing them?

Thanks,
Joseph

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