A suite is the location of a business within a shopping mall or office building. The suite's number also serves as a sort of address within an address for purposes of mail delivery and pickup.
Some commercial mail receiving agencies may also use the 'suite' designator to indicate a company's private post-office box by listing it as a suite rather than a post-office box, though by order of the United States Postal Inspection Service, most of the major CMRA companies such as The UPS Store/Mail Boxes Etc. have drawn this down as the result of mail fraud where unscrupulous businesses who count on their targets not researching their addresses market a post-office box 'suite' or virtual office as an actual office location with personnel.
In the USA, suite can be abbreviated "STE" in postal addresses.
Video Suite (address)
References
Source of article : Wikipedia