Amazon Route 53 - Amazon Route 53 is a highly available and scalable DNS web service.
Domainz.io - Premium domains, for not so premium prices
DNS Made Easy - DNS performance, reliability, and security have never been easier.
Cloudflare DNS - Install the free app that makes your phone’s Internet more fast, private, and reliable.
Brandpa - Domain names for startups
ClouDNS - ClouDNS is a platform that allows users to keep their websites, data, and network security all the time.