| Abbreviation | Definition |
|---|---|
| UCIC | United Cable Industries Company |
| UCIC | United China Import Company |
| UCIL | Union Carbide India Limited |
| UCIL | Uranium Corp of India Ltd |
| UCIL | Uranium Corporation of India Limited |
| UCIL | Uranium Corporation of India Ltd |
| UCN | Ukrainian Consulting Network |
| UCN | United Carrier Networks |
| UCNL | Ultra Consulting Network Limited |
| UCO | Universal Compression Holdings, Inc. |
| UCO | Urban Coffee Opportunities |
| UCP | United Cattle Products |
| UCP | United Cow Products |
| UCQ | Uni- Center Querenburg |
| UCR | United Phosphorus Limited |
| UCS | Universal Coaching Service |
| UCT | Universal Conversion Technologies |
| UCT | Upper Canada Technologies |
| UCU | Universal Concepts Unlimited |
| UCV | UitwisselingsCentrum en verekening |