Thanks Cheryl! That did the trick!
I'm sure it's not a complete list, and it looks like the information is a tad outdated (for instance, the information for the company I work for does not reflect a certification we obtained 18 months ago).
But regardless, it's a lot more than I had before! I even found a plant that is TS 16949 certified within 10 miles of my office.
That's certainly a site I will bookmark and use frequently.
Norman V.