This is some sort of research company.  I missed the call on my cell and called them back, and they asked me if I had signed up to be on some sort of list.  I told them I hadn't.  Then they proceeded to try to get personal information out of me (What's your name, number etc.), and I didn't give them any info and told them I wasn't interested in whatever they were doing.

This is a number for Benchmark Research, a market research company.  If you get a call from them, you have previously expressed interest in participating in research studies.