The Parallels Plesk Billing software package is a commercial web hosting billing and automation program. Originally released under the U.S. company ModernGigabyte, LLC and designed in Louisville, KY, Parallels Plesk Billing became an Parallels, Inc. product when Parallels, Inc. acquired ModernGigabyte, LLC in January 2008. Originally called ModernBill, the product's name was changed to Parallels Plesk Billing as part of an overall rebranding of the company's products.