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