| UCom | Real Imagines Programmers Group | 39 | ||
| Ulterior | 1 | |||
| Umdpower | 6 | |||
| Undertaker | 2 | |||
| Unknown | 508 | |||
| Unwinder | Coders' Academy Interactive Group | 11 | ||
| UriS | 3 | |||
| UTZ | 4 | |||
| Uzer DE | 3 |
Unknown
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