Exhibit 21.1 LIST OF SUBSIDIARIES OF DUNN COMPUTER CORPORATION, A VIRGINIA CORPORATION The following companies will be subsidiaries of the Company as of the Closing: 1. Dunn Computer Corporation, a Delaware Corporation. 2. Dunn Computer Operating Company, a Virginia Corporation. 3. STMS, Inc., a Virginia Corporation. 4. STMS Acquisitions Corporation, a Delaware Corporation. 5. International Data Products, Corp., a Maryland Corporation. 6. In addition, prior to the Closing, the Company will form subsidiary corporation in Puerto Rico.