I hope to find some list of companies that use it. The more enterprise
level the list the better since that’s the main space we deal with.
My (small) company http://www.logeek.fr developed and still maintains
group of Java CRM extensions for BMC
JRuby, in a fairly enterprisey environment (call-center subsidiary of
french insurance company, so fairly far away from startups).
It’s a small scale system (handling =~10k Resque jobs per day,
PDF documents, creating/updating tasks in the CRM via the API,
etc), but it showed me that using JRuby for “enterprise glue” works
and is a place where JRuby definitely shines (good testing quality,
code, ability to leverage both ruby and java libraries etc).
hope this helps,