| INDUSTRISELSKABET AF 26. JANUAR 2002 A/S CVR 10048729 | BoardBoard of Directors | 2000 – 2013 | — | Dissolved |
| ENKOTEC A/S CVR 10363098 | BoardBoard of Directors | 1993 – 1995 | — | Dissolved |
| FLS ENERGY III A/S CVR 11153143 | BoardBoard of Directors | 1987 – 1996 | — | Dissolved |
| CABCOM ApS CVR 11959083 | BoardBoard of Directors | 1988 – 1990 | — | Dissolved |
| I.C. HOLDING ApS CVR 11987605 | BoardBoard of Directors | 2000 – 2007 | — | Dissolved |
| INDUSTRISELSKABET AF 17. JULI 2007 A/S CVR 13921091 | BoardBoard of Directors | 1990 – 2013 | — | Dissolved |
| NKT TRÅDVÆRKETS EJENDOMS A/S CVR 13921148 | BoardChairman | 1990 – 1991 | — | Dissolved |
| NKT RESEARCH & INNOVATION A/S CVR 13921199 | BoardBoard of Directors | 2009 – 2013 | — | Dissolved |
| INDUSTRISELSKABET AF 17. JANUAR 2002 A/S CVR 13921334 | OtherUnofficial title | 2004 – 2005 | — | Dissolved |
| INDUSTRIESELSKABET AF 1. MARTS 2003 A/S CVR 13921342 | OtherUnofficial title | 2005 – 2005 | — | Dissolved |
| ALSTOM SIGNALING A/S CVR 13921377 | BoardBoard of Directors | 1990 – 1995 | — | Dissolved |
| INDUSTRISELSKABET AF 2. MAJ 2002 A/S CVR 13921431 | BoardBoard of Directors | 2002 – 2004 | — | Dissolved |
| CFC LYSSKILTE A/S CVR 14009604 | BoardBoard of Directors | 1974 – 1992 | — | Dissolved |
| NKT TELCAB A/S CVR 15515848 | BoardBoard of Directors | 1991 – 1994 | — | Dissolved |
| NKT ULTERA A/S CVR 15515880 | BoardBoard of Directors | 2002 – 2013 | — | Dissolved |
| LEXEL HOLDING A/S CVR 18749386 | OtherFounder | 1995 – 2002 | — | Dissolved |
| UNIBOLT A/S CVR 43242318 | BoardBoard of Directors | 1996 – 1997 | — | Active |
| INDUSTRISELSKABET AF 1. FEBRUAR 2000 A/S CVR 18884380 | OtherFounder | 1995 – 2005 | — | Dissolved |
| EJENDOMSSELSKABET BLYTÆKKERVEJ A/S CVR 18983109 | OtherUnofficial title | 2004 – 2004 | — | Dissolved |
| INDUSTRISELSKABET AF 23. JUNI 2007 A/S CVR 25590368 | BoardBoard of Directors | 2008 – 2013 | — | Dissolved |
| INDUSTRISELSKABET AF 10. NOVEMBER 2003 A/S CVR 25715721 | OtherUnofficial title | 2005 – 2005 | — | Dissolved |
| INDUSTRISELSKABET AF 12. MAJ 2003 A/S CVR 25730143 | OtherUnofficial title | 2005 – 2005 | — | Dissolved |
| CNC SNEDKERIET A/S CVR 26117941 | BoardChairman | 2001 – 2007 | — | Dissolved |
| INDUSTRISELSKABET AF 11. OKTOBER 2001 A/S CVR 26277337 | BoardBoard of Directors | 2001 – 2011 | — | Dissolved |
| INDUSTRISELSKABET AF 8. DECEMBER 2001 A/S CVR 26395410 | BoardBoard of Directors | 2001 – 2011 | — | Dissolved |
| INDUSTRISELSKABET AF 18. DECEMBER 2001 A/S CVR 26402093 | BoardBoard of Directors | 2001 – 2011 | — | Dissolved |
| INDUSTRISELSKABET AF 21. DECEMBER 2001 A/S CVR 26412862 | BoardBoard of Directors | 2001 – 2011 | — | Dissolved |
| HEAS MASKINFABRIK A/S CVR 27327710 | OtherUnofficial title | 1997 – 1997 | — | Dissolved |
| SELSKABET CVR NR. 28574614 A/S CVR 28574614 | BoardChairman | 2008 – 2015 | — | Dissolved |
| INDUSTRISELSKABET AF 29.NOVEMBER 1991 A/S CVR 29166757 | OtherUnofficial title | 1933 – 1994 | — | Dissolved |
| NKT PHOTONICS A/S CVR 10048265 | BoardBoard of Directors | 2000 – 2001 | — | Active |
| NKT (Denmark) A/S CVR 25711548 | BoardBoard of Directors | 2000 – 2002 | — | Active |
| EATON ELECTRIC ApS CVR 14548408 | BoardBoard of Directors | 1975 – 1991 | — | Active |
| Fonden Direktør Valdemar Wennstrøm og Hustrus Legat CVR 18343517 | BoardBoard of Directors | 2017 – 2022 | — | Active |
| SCHNEIDER ELECTRIC DANMARK A/S CVR 70698714 | BoardBoard of Directors | 1917 – 1996 | — | Active |
| ESCON ELECTRONIC A/S CVR 33239866 | BoardBoard of Directors | 2010 – 2013 | — | Dissolved |
| JO JO A/S CVR 34586217 | BoardBoard of Directors | 1971 – 1996 | — | Dissolved |
| O B Consult CVR 34989176 | OtherStakeholder | 2013 – 2022 | — | Active |
| Direktør Cand Polyt Louis Lundbye Hustru og Børns Legat CVR 18343312 | BoardBoard of Directors | 2017 – 2022 | — | Active |
| ENKOTEC A/S CVR 15515791 | BoardBoard of Directors | 1991 – 1994 | — | Active |
| COLORLUX A/S CVR 37113018 | BoardBoard of Directors | 1996 – 1997 | — | Dissolved |
| Kolon A/S CVR 87580814 | BoardBoard of Directors | 2021 – 2022 | — | Active |
| Infinera Denmark A/S CVR 13920982 | BoardBoard of Directors | 1994 – 1994 | — | Active |
| NKT CABLES GROUP A/S CVR 15515872 | BoardBoard of Directors | 1991 – 2013 | — | Active |
| Swiss Steel Denmark A/S CVR 34723613 | BoardBoard of Directors | 1996 – 1999 | — | Active |
| NKT INTERNATIONAL A/S CVR 66653811 | OtherUnofficial title | 1997 – 1997 | — | Dissolved |
| ABETA INTERNATIONAL A/S CVR 78039817 | OtherUnofficial title | 1997 – 1997 | — | Dissolved |
| CUBIC TRANSPORTATION SYSTEMS (NORDIC) A/S CVR 78251328 | BoardBoard of Directors | 1995 – 1995 | — | Dissolved |
| NATIONAL OILWELL VARCO DENMARK I/S CVR 24255298 | BoardBoard of Directors | 2002 – 2007 | — | Active |
| NKT Invest A/S CVR 13921040 | BoardBoard of Directors | 2002 – 2013 | — | Active |
| SUBSEAFLEX HOLDING ApS CVR 11931979 | BoardBoard of Directors | 1995 – 2012 | — | Active |
| ITW CONSTRUCTION PRODUCTS ApS CVR 14395016 | BoardBoard of Directors | 1996 – 1998 | — | Active |
| NILFISK A/S CVR 62572213 | BoardBoard of Directors | 2010 – 2013 | — | Active |
