Source: http://www.godaddy.com/ssl/ssl-extended-validation.aspxPremium Extended Validation Certificates require the most extensive vetting process compared to all other types of SSL Certificates. They also provide the highest level of online assurance for your customers using a process that's standardized across all certification authorities.
Validates the existence, identity and legitimacy of a company through a rigorous authentication process. Verification includes:
: The legal, physical and operational existence of the company.
: That the company matches official records.
: That the company has exclusive right to use the domain.
Extended SSL Certificates are available only to corporations which are legally registered and verified with a status of "Good Standing," Active" or equivalent.
Available only for businesses in the United States, Canada, United Kingdom, New Zealand and Australia.
Browsers also display both the organization name and issuing certification authority. Using the same rock-solid, 256-bit encryption technology as our Standard SSL and Deluxe SSL Certificates, Premium Extended Validation SSL Certificates prove that your Web site is a secure place for customers to conduct business.