| Rank | Abbreviation | Meaning |
|---|
| ***** | CTDC | Confederación de Trabajadores Democráticos de Cuba
| |
| ***** | CTDC | Center for Telecommunications and Digital Convergence
| |
| ***** | CTDC | Centre Technique Départemental de la Consommation
| |
| **** | CTDC | colon-targeted delivery capsule
| |
| **** | CTDC | China Textiles Development Center
| |
| **** | CTDC | Community Training and Development Centre
| |
| **** | CTDC | Construction Technology Development Centre
| |
| **** | CTDC | Congress of Toxicology in Developing Countries
| |
| **** | CTDC | Caribbean Tourism Development Company
| |
| **** | CTDC | Contact Transscleral Diode Laser Cyclophotocoagulation
| |
| **** | CTDC | China Technology Deveopment Group Corporation
| |
| **** | CTDC | Clothing Technology Demonstration Centre Company Ltd.
| |
| *** | CTDC | china technology development corp
| |
| *** | CTDC | Cairo Technology Development Center
| |
| *** | CTDC | Company Technical Document Center
| |
| *** | CTDC | Copper Technical Data Centre
| |
| *** | CTDC | Clean Tech Development Center
| |
| *** | CTDC | Concerned Taxpayers of Duval County
| |
| ** | CTDC | Clementi Training and Development Centre
| |
| ** | CTDC | Central Travancore Development Corporation
| |
| ** | CTDC | Caribbean Tourism Development Corporation
| |
| ** | CTDC | Control Track Direction Computer
| |
| ** | CTDC | Cyprus Tourism Development Company
| |
| ** | CTDC | Central Toronto Diving Club
| |
| * | CTDC | Calico Twirlers Dance Club
| |