| Abbreviation | Definition |
|---|---|
| CTRV | Cardillo Travel Systems, Inc. |
| CTRX | Celtrix Pharmaceuticals, Inc. |
| CTRX | CoTherix, Inc. |
| CTRY | Century Bancshares, Inc. |
| CTSC | Cellular Technical Services, Inc. |
| CTSH | Cognizant Technology Solutions |
| CTTDY | Christies International, P. L. C. |
| CTVB | atawba Valley Bancshares |
| CTVB | Catawba Valley Bancshares |
| CTVY | Cotton Valley Resources Corporation |
| CTWN | Chattown.Com Network |
| CTWS | Connecticut Water Service, Inc. |
| CTXS | Citrix Systems, Inc. |
| CUBA | Herzfield Caribbean Basin |
| CUBE | C Cube Microsystems, Inc. |
| CUCO | Cucos, Inc. |
| CUIS | Cuisine Solutions, Inc. |
| CULE | Cool Entertainment, Inc. |
| CULS | Cost- U- Less |
| CUMB | Cumberland Technology, Inc. |