As HN: Any YC startup that isn't software?

I'm not interested in applying for a company that doesn't write software, but can anyone think of YC startups outside software, and, even more broadly, outside the "technology" space?

I ask because of:

Do you only fund startups that write software? We'll consider startups in any field, but odds are better for startups writing software, because that's what we understand.

Wakemate and Wattvision have hardware components. They still have some software, of course, but they sell their hardware.