Exhibit 21



Subsidiaries of ACT Teleconferencing, Inc.



|Name                                                                                      |  | Jurisdiction of Incorporation
|----------------------------------------------------------------------------------------- |  | -----------------------------
|                                                                                         
|ACT Teleconferencing Services, Inc., formerly ACT Capital, Inc.                           |  | Minnesota, USA               
|                                                                                         
|ACT VideoConferencing, Inc., formerly NBS, Inc.                                           |  | Minnesota, USA               
|                                                                                         
|ACT Research, Inc.                                                                        |  | Colorado, USA                
|                                                                                         
|ACT Proximity, Inc.                                                                       |  | Colorado, USA                
|                                                                                         
|ACT Teleconferencing Canada Inc.                                                          |  | Canada                       
|                                                                                         
|ACT Teleconferencing Limited (formerly 60% owned but 100% owned as of January 17,
2001)   |  | United Kingdom               
|                                                                                         
|ACT Business Solutions Limited, formerly Multimedia and Teleconferencing Services
Limited |  | United Kingdom               
|                                                                                         
|ACT Teleconferencing France SA                                                            |  | France                       
|                                                                                         
|ACT Teleconferencing GmbH                                                                 |  | Germany                      
|                                                                                         
|ACT Teleconferencing BV                                                                   |  | Netherlands                  
|                                                                                         
|ACT Teleconferencing Belgium SA                                                           |  | Belgium                      
|                                                                                         
|ACT Teleconferencing (Pty) Limited                                                        |  | Australia                    
|                                                                                         
|ACT Teleconferencing Hong Kong Limited                                                    |  | Hong Kong                    
|                                                                                         
|ACT Teleconferencing of Bermuda Limited                                                   |  | Bermuda                      
|                                                                                         
|ACT Teleconferencing Singapore PTE Limited                                                |  | Singapore