| Charitatos, Kostas | Kostas Charitatos | Composer | 2006 | 1 | |
| Cunneen, Paddy | Paddy Cunneen | Composer | 1990 - 2009 | 10 | |
| Chopin, Frédéric, | Frédéric Chopin | Composer | 1916 - 2012 | 29 | |
| Chert, Kais | Kais Chert | Composer | 2010 | 1 | |
| Czibulka, Alphons, | Alphons Czibulka | Composer | 1885 - 1896 | 4 | |
| Curjel, Hans, | Hans Curjel | Composer | 1924 | 2 | |
| Conradi, -, | - Conradi | Composer | 1903 - 1909 | 3 | |
| Celius, Olav, | Olav Celius | Composer | 1991 | 1 | |
| Celius, Henrik, | Henrik Celius | Composer | 1991 | 1 | |
| Christensen, Jon, | Jon Christensen | Composer | 2009 | 49 | |
| Cedrins, Franz Edvard, | Franz Edvard Cedrins | Composer | 2013 - 2014 | 2 | |
| Collins, Sarah | Sarah Collins | Composer | 1990 | 2 | |
| Chernin, Elena | Elena Chernin | Composer | 1993 - 1995 | 6 | |
| Carpi, Fiorenzo | Fiorenzo Carpi | Composer | 1981 - 2005 | 6 | |
| Campbell, Arthur | Arthur Campbell | Composer | 1981 | 1 | |
| Castegnaro, Lola | Lola Castegnaro | Composer | 1945 | 1 | |
| Cepeda, Boris | Boris Cepeda | Composer | 2013 | 1 | |
| Christensen, Bo | Bo Christensen | Composer | 2013 | 1 | |
| Czarnik , Hans | Hans Czarnik | Composer | 1985 | 1 | |
| Conway , Roma | Roma Conway | Composer | 1987 | 2 | |
| Cooper, Richard | Richard Cooper | Composer | 1984 | 1 | |
| Chava-Vagia, Aigli | Aigli Chava-Vagia | Composer | 1989 | 2 | |
| Chiaramello, Giancarlo | Giancarlo Chiaramello | Composer | 1993 | 2 | |
| Czebotar , Robert | Robert Czebotar | Composer | 1991 | 1 | |
| Courtin, Bruno | Bruno Courtin | Composer | 1994 | 1 | |
| Condon, Fernando | Fernando Condon | Composer | 1994 - 2001 | 3 | |
| Chydenius, Kaj | Kaj Chydenius | Composer | 1980 | 1 | |
| Conely, James | James Conely | Composer | 1997 | 1 | |
| Coburger, Christoph | Christoph Coburger | Composer | 1995 - 2018 | 5 | |
| Crişan Rusu, Dorina, | Dorina Crişan Rusu | Composer | 1997 - 1998 | 2 | |
| Corapi, Giordano | Giordano Corapi | Composer | 2013 - 2014 | 4 | |
| Coombes, Douglas | Douglas Coombes | Composer | 1967 | 1 | |
| Carrapatoso, Eurico | Eurico Carrapatoso | Composer | 2002 | 1 | |
| Cavalieri, Pietro | Pietro Cavalieri | Composer | 2002 | 1 | |
| Csemiczky, Miklós | Miklós Csemiczky | Composer | 2002 | 1 | |
| Christensson, Christer | Christer Christensson | Composer | 2003 | 4 | |
| Christofides, Constantin | Constantin Christofides | Composer | 2003 | 2 | |
| Cybinski, Patrick | Patrick Cybinski | Composer | 2004 | 1 | |
| Claris de Florian, Jean-Pierre | Jean-Pierre Claris de Florian | Composer | 2004 | 1 | |
| Cón, Karel | Karel Cón | Composer | 2000 | 1 | |
| Cristei, Cornel | Cornel Cristei | Composer | 2010 | 2 | |
| Cullen, Ian | Ian Cullen | Composer | 2005 | 1 | |
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