Rainmaker Entertainment, Inc. (formerly Mainframe Entertainment Inc.) is a Canadian computer animation and design company based in Vancouver, British Columbia and Los Angeles, California. They are best known for producing the first ever CGI animated series ReBoot, as well as the Transformers spin-off Beast Wars: Transformers and Transformers: Beast Machines. In recent years they have also become known for producing most of the Barbie film series for Mattel.