Go to My Favorite WEB Search Engine and enter in +"under counter ice" ('+' and double-quotes and all), and press Search. You'll get some Corporate 'hits' as well as 'places' that have them installed in the kitchen, (like new homes, apts., etc., etc..) At worst, you can try to contact the latter to see who makes the ones already installed.
Maybe others have some info based on personal experience. My 'help' is only from a WEB search. My best to ya and hope this helps.