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C11 (C standard revision)

Cacti (software)

Construcciones y Auxiliar de Ferrocarriles

CBC News Network

CBUT-DT

CCTV-13

CDBurnerXP

Celery (software)

Ceph (software)

China Global Television Network

Chapel (programming language)

Progress Chef

Chemistry Europe

CHH Txuri Urdin

Chromebook Pixel

Club Hielo Jaca

CIVT-DT

CJMT-DT

CKVU-DT

Council of British International Schools

Code.org

CodeLite

Comac C919

CoMaps