I've got some made by Global but I cant find any info on them or a stockist. Plenty of anti pick pins in them and thumbturns that don't open with piano wire. Wish I could get some more...
I believe kaba do a very good one, ICL have just released their anti snap cylinder and i believe quite a few are in the pipeline to meet the new standards.
SKS are selling them. Nice quality cylinder and good price too. Will be adding a lot of them as a mid-range upgrade to customers to my current Asec stock in the next few months.