| C-Mon & Kypski | — | 2000 | — |
| C.C.C. Inc. | — | 1967 | — |
| Cairo Liberation Front | — | december 2012 | — |
| Calefax Reed Quintet | — | 21 november 1985 | — |
| Callenish Circle | — | 1992 | 2007 |
| Camerata of the 18th Century | — | 1991 | — |
| Camerata Trajectina | — | 1974 | — |
| Capcap… cap | — | 2010 | — |
| Cappella Amsterdam | — | 1970 | — |
| Cappella Pratensis | — | 1987 | — |
| Carach Angren | — | 2003 | — |
| Catapult | — | 1973 | 1979 |
| Caught in the Act | — | 1992 | — |
| Causes | — | 2013 | 2019 |
| Cees & Marjan | — | 1973 | 1977 |
| Celestial Season | — | 1991 | — |
| Cenobites | — | 1994 | — |
| Centerfold | — | 1984 | 1989 |
| Centurian | — | 1997 | 2011 |
| Ceremony | — | 1989 | — |
| Ch!pz | — | 2003 | 2011 |
| Chainsaw | — | 1996 | — |
| Champagne | — | 15 oktober 1976 | 1981 |
| Charly Lownoise & Mental Theo | — | 1993 | 2022 |
| Chef’Special | — | 2008 | — |
| Circus Custers | — | 1980 | 1996 |
| Cirith Gorgor | — | 1993 | — |
| City to City | — | 1998 | — |
| Clan of Xymox | — | 1984 | — |
| Claw Boys Claw | — | 1983 | — |
| Clazz Ensemble | — | 2007 | — |
| Clean Pete | — | 2012 | — |
| Cliffhanger | — | 1993 | 2001 |
| Cliteater | — | 2002 | 2023 |
| Cobra Spell | — | — | 2026 |
| Coda | — | 1983 | 1996 |
| Cold Body Radiation | — | 2009 | — |
| Cold Void | — | 2012 | — |
| Colossa | — | 2008 | — |
| Combattimento Consort Amsterdam | — | 1982 | 2014 |
| Consortium Project | — | 1999 | 2012 |
| Cooper | — | 1992 | — |
| Cords | — | 1991 | — |
| Cosmic Dealer | — | 1968 | 1973 |
| Countess | — | 1992 | — |
| Coïtus Int. | — | 1978 | 1992 |
| Crackerhash | — | 1968 | 2004 |
| Cremation | — | 1993 | — |
| Critical Mass | — | 1994 | — |
| Cryptosis | — | februari 2020 | — |
| CSMD | — | 1998 | — |
| Cubicolor | — | 2014 | — |
| Cuby + Blizzards | — | 1964 | 2011 |
| Cultus | — | 1998 | — |
| CUT_ | — | september 2013 | — |