The following corporate members of the ITS provide generous support to all ITS activities:
| ITS Corporate Global Members: | 
|  | AT&T | 
|  | Deutsche Telekom | 
|  | Huawei Technologies Co., Ltd. | 
|  | KDDI Research, Inc. | 
|  | Michael H Ryan BA LLB | 
|  | National Broadcasting and Telecommunications Commission of Thailand (NBTC) | 
|  | Nippon Telegraph and Telephone Corporation (NTT Corporation) | 
|  | NERA | 
|  | Orange | 
|  | TELUS Communications | 
|  | TIM Celular S.A. | 
| ITS Corporate International Members: | 
|  | Serentschy Advisory Services GmbH | 
| Non Profit / Governmental Members: | 
|  | Center for Communication, Media and Information Technologies (CMI) | 
|  | Columbia Institute for Tele-Information | 
|  | Chalmers University | 
|  | Department of Information and Communication Traffic, Faculty of Transport and Traffic Sciences, University of Zagreb | 
|  | IDATE | 
|  | National Communications Commission, R.O.C. (Taiwan) | 
|  | Pacific Telecommunications Council | 
|  | Taiwan Communications Society (TCS) | 
|  | ZBW - Leibniz Information Centre for Economics |