Exhibit 21.1 SUBSIDIARIES OF REGISTRANT Following is a list of all subsidiaries of Luminant Worldwide Corporation: - LWC Operating Corp. - LWC Management Corp. - Potomac I Holdings, Inc. - Multimedia I Holdings, Inc. - RSI Group, Inc. - Align Solutions Corp. - InterActive8, Inc. - BD Acquisition Corp. - Integrated Consulting, Inc. - Free Range Media, Inc. - Align - Synapse Acquisition Corporation - Align - Fifth Gear Acquisition Corporation - Potomac Partners Management Consulting LLC - Multimedia Resources LLC - Resource Solutions International, LLC 1