ccTLDs - Become a Registrar

I was wonder if anyone within the group has done this research and might be able to save me a bit of time. I am in the process of putting together a new Registrar and we would like complete ccTLD coverage. I know for example CIRA (.ca) has a Canadian Presence Requirement and we have formed a Canadian Corporation to meet this requirement. I am hoping to find what other TLD operators may have similar requirements. Cheers Ryan