I took some time to import and update quite a bit of RADIUS vendor dictionaries for 3rd party vendors into ISE. I grabbed this information from various community and open source sites but I obviously can't test it against every vendor out there since I don't have a selection of 140+ 3rd party NADs sitting in my lab. After I imported them to ISE, I exported them and have uploaded them here.
Note: If any of these don't work or I need to update some of the attributes, please shoot me a PM and I'll make the necessary adjustments. Also if there are any vendors I should be adding, let me know.