@David_HarrisonJul 13.2004 — #Well for .uk's it's [url=http://www.nominet.net/]Nominet[/url] and for .com's it's [url=http://www.verisign.com/]VeriSign[/url].
@AdamGundryJul 13.2004 — #The highest level organisation is [url=http://www.icann.org/]ICANN[/url], but bodies such as Nominet and Verisign handle the actual day-to-day running of a top-level domain.