EMC Corporation today announced the acquisition of Dantz, the developer of the Retrospect backup and recovery software for Mac OS X. Dantz, founded in 1984, will continue to operate in Walnut Creek, California. Dantz’s president and CEO, Larry Zulch, will report to Dave DeWalt and Mark Lewis, co-leaders of the EMC Software Group. EMC acquired Dantz in a cash transaction valued at less than US$50 million. Dantz is EMC’s 15th software acquisition since the beginning of 2000.