Red Hat
Red Hat acquired open-source middleware provider JBoss on June 5, 2006, and JBoss became a division of Red Hat. On September 18, 2006, Red Hat released the Red Hat Application Stack, which integrated the JBoss technology and which was certified by other well-known software vendors. On December 12, 2006, Red Hat stock moved from trading on NASDAQ (RHAT) to the New York Stock Exchange (RHT). In 2007 Red Hat acquired MetaMatrix and made an agreement with Exadel to distribute its software.