Most Popular Domain RegistrarsThe top ten most popular domain registration companies based on total number of domains registered.
Created on 6/26/2012, source: http://www.webhosting.info/registrars/top-registrars/global/
The Top TenX
Has almost 3 times as many domains as the second place registrar and has as many domains registered as the next five companies combined.
Largest non-US domain registrar
German domain registrar behind 1&1
Not trustworthy. They will sell your name out from under you the moment they get the chance - on their sister company, SNAP NAMES. TOTAL conflict of interest going on here.