I think everybody who uses CL uses a subset. The problem is that everyone uses a different subset, which can be an issue when using libraries.
Do you mind sharing where you work?
Like most people I know of who use Scheme or other Lisps in the real world, I'm in the financial services industry. Here's a job opening for someone who would report to me:
https://tbe.taleo.net/NA4/ats/careers/requisition.jsp?org=EA...
What I don't understand is why you want something "a little less bulky"? Can't you use a subset of CL?