Whois Opt-Out
Any individual (as opposed to a company or organisation) registering a .uk domain name has the option to opt out of the Whois database after their domain has been registered. Organisations and companies are required to submit their details to the public Whois database.
Any individual registering a .eu domain name is automatically exempt from public Whois entry during the domain registration process. Organisations and companies are required to submit their details to the public Whois database.