EXHIBIT 21.1 ------------ Applied Digital Solutions, Inc. List of Subsidiaries Company Name Country or State of Incorporation/Formation ACT Communications Inc. Delaware ACT-GFX Canada, Inc. Ontario, Canada ADS Bay Area, Inc. f/k/a Lynch, Marks & Associates, Inc. California ADS Monterey, Inc. f/k/a Hornbuckle Engineering, Inc. California ADSI Telecomm Services, Inc. Pennsylvania ADSI Telecomm Services of Maryland, Inc. Maryland Advanced Power Solutions, Inc. Delaware Advanced Telecomm of Maryland, Inc. Pennsylvania Advanced Telecomm of Pittsburgh Pennsylvania Advanced Telecommunications, Inc. Illinois The Americom Group, Inc. Louisiana Applied Digital Oracle Practice, Inc. f/k/a Port Consulting, Inc. Florida Applied Digital Retail, Inc. f/k/a Transatlantic Software Delaware Corporation Inc. Applied Digital Retail Limited f/k/a Transatlantic Software United Kingdom Corporation Limited Applied Digital Solutions Financial Corp. New Hampshire Applied Digital Solutions International Limited United Kingdom Arjang, Inc. f/k/a Applied Digital Retail, Inc. f/k/a STR, Inc. Ohio BALVA Financial Corporation Maryland Blue Star Electronics, Inc. New Jersey Bostek, Inc. Massachusetts Caledonian Venture Holdings Limited United Kingdom Computer Equity Corporation Delaware Consolidated Technologies Holdings Inc. British Columbia, Canada Cybertech Station, Inc. Pennsylvania Digital Angel Corporation f/k/a Digital Angel.net Inc. Delaware Digital Angel Holdings, LLC Minnesota Digital Highways, Inc. Virginia Elite Computer Services, Inc. New Jersey Federal Convention Contractors, Inc. Delaware Federal Services, Inc. Delaware GDB Software Services, Inc. New York Government Telecommunications, Inc. Virginia Independent Acquisition, Inc. California Information Technology Services, Inc. New York InfoTech USA, Inc. f/k/a Information Products Center, Inc. New Jersey Intellesale, Inc. f/k/a Intellesale.com, Inc. Delaware Micro Components International Incorporated Massachusetts Neirbod Corp. f/k/a ACT Wireless Corp. Delaware Norcom Resources Incorporated Minnesota Payless Communications Inc. British Columbia, Canada PDS Acquisition Corp. Delaware Perimeter Acquisition Corp. Delaware Pizarro Re-Marketing, Inc. Texas Precision Point Corporation Delaware Service Transport Company New Jersey Signal Processors Limited United Kingdom Signature Industries Limited United Kingdom Company Name Country or State of Incorporation/Formation VeriChip Corporation (f/k/a Surgical Identification Services, Inc.) Delaware SysComm International Corporation Delaware Teledata Concepts, Inc. Florida Timely Technology Corp. California U.S. Electrical Products Corp. New Jersey WebNet Services, Inc. New York