| Kong Tiki Records AS | Oslo | 2004 |
| Kongen Marina AS | Oslo | 1993 |
| Kongens Plass Drift AS | Kristiansund N | 2016 |
| Kongensfryd AS | Buvika | 2024 |
| Kongerødvegen 3 AS | Sandefjord | 2009 |
| Konges Sløjd | Dk-1434 København K | 2022 |
| Konghelle Bil AS | Oslo | 2005 |
| Kongla Invest AS | Vettre | 2023 |
| Kongmo AS | Porsgrunn | 2022 |
| Kongsberg Automotive Inc. | 19904 Kent | 2021 |
| Kongsberg Beauty Industry AS | Kongsberg | 2016 |
| Kongsberg Bil & MC AS | Kongsberg | 2018 |
| Kongsberg Blomster Og Hage AS | Kongsberg | 2020 |
| Kongsberg Brannsikring AS | Kongsberg | 1996 |
| Kongsberg Energi Stasjon AS | Kongsberg | 2024 |
| Kongsberg Gass AS | Kongsberg | 2007 |
| Kongsberg Interiør AS | Kongsberg | 1986 |
| Kongsberg Kjøkkensenter AS | Kongsberg | 2000 |
| Kongsberg Klokker Og Smykker AS | Kongsberg | 2014 |
| Kongsberg Maritime Netherlands B.V. Nuf | 3195 Hv Pernis | 2010 |
| Kongsberg Mat AS | Kongsberg | 2009 |
| Kongsberg Parfymeri AS | Kongsberg | 2007 |
| Kongsberg Precision Cutting Systems Belgium BV | Be-9051 Gent | 2021 |
| Kongsberg Software AS | Kongsberg | 2022 |
| Kongsberg Solskjerming AS | Kongsberg | 2025 |
| Kongsberg Tilhengerservice AS | Kongsberg | 2014 |
| Kongsberg Trading AS | Kongsberg | 2018 |
| Kongsfoss Norge AS | Nesbru | 1993 |
| Kongshov AS | Kirkenær | 2011 |
| Kongshytta AS | Harstad | 2012 |
| Kongsmoen AS | Oslo | 1981 |
| Kongsvik Landhandleri AS | Kongsvik | 2023 |
| Kongsvinger Apotek AS | Kongsvinger | 2016 |
| Kongsvinger Bilsenter AS | Kongsvinger | 2014 |
| Kongsvinger Bobil AS | Grinder | 2019 |
| Kongsvinger Elektriske AS | Kongsvinger | 1971 |
| Kongsvinger Frukt Og Grønt AS | Kongsvinger | 2025 |
| Kongsvinger Kjøkken AS | Kongsvinger | 2018 |
| Kongsvinger Musikksenter AS | Kongsvinger | 2011 |
| Kongsvinger Optiske AS | Kongsvinger | 2017 |
| Kongsvinger Sport & Fritid AS | Kongsvinger | 2002 |
| Kongsvinger Ur Og Smykker AS | Kongsvinger | 2000 |
| Konica Minolta Business Solutions Norway AS | Oslo | 1992 |
| Konkursnett AS | Lierskogen | 2016 |
| Konkurssalg Og Import AS | Skollenborg | 2014 |
| Konkylie Design AS | Stavanger | 2024 |
| Konnect E2E AB Nuf | Oslo | 2024 |
| Konnekt Norge AS | Oslo | 2016 |
| Konnerud Apotek AS | Drammen | 2021 |
| Konnerud Servicesenter AS | Drammen | 2026 |
| Konnerudgata Alltid AS | Drammen | 2021 |
| Kono Green AS | Oslo | 2021 |
| Konow Holding AS | Oppegård | 2021 |
| Konows Auto AS | Oslo | 2021 |
| Konowsgate Dagligvarer AS | Oslo | 2017 |
| Konowsgate Nærbutikk AS | Oslo | 2012 |
| Konrad Sekkingstad AS | Fjell | 2002 |
| Konsept Innredning AS | Oslo | 2026 |
| Konsept Service AS | Langhus | 2012 |
| Konseptor AS | Ålesund | 2007 |
| Konsmo Mat AS | Konsmo | 2020 |
| Konstabel AS | Oslo | 2013 |
| Konstlagret Sverige AB Nuf | Oslo | 2017 |
| Konsul AS | Åmdals Verk | 2024 |
| Konsulent Dan Gøran Lunde AS | Oslo | 2014 |
| Konsulent Service Limited Nuf | Oslo | 2020 |
| Konsum Gruppen Norge AS | Oslo | 2000 |
| Konsum Nord Ekonomisk Forening | 90177 Umeå | 2009 |
| Kontaktlinseinstituttet AS | Bergen | 2004 |
| Kontaktsalg Da | Jar | 2011 |
| Konterud Dagligvare AS | Lillestrøm | 2023 |
| Kontiki Bruktbil AS | Stavanger | 2020 |
| Kontoor International Sagl | Ch-6855 Stabio | 2019 |
| Kontor & IT AS | Lyngdal | 2020 |
| Kontor Design AS | Bardufoss | 2005 |
| Kontor Engros Oslo AS | Nesbru | 2000 |
| Kontor Holding AS | Arendal | 2023 |
| Kontor Konsult AS | Torp | 1989 |
| Kontor Og Grafisk Alta AS | Alta | 1998 |
| Kontor Og Interiør Harstad AS | Harstad | 2005 |
| Kontor Og Kaffe AS | Sandefjord | 2014 |
| Kontor Og Kopiservice AS | Geilo | 1988 |
| Kontor-Rek Da | Oslo | 1988 |
| Kontorbyrået AS | Skollenborg | 2017 |
| Kontorcompagniet AS | Høvringen | 2012 |
| Kontorcompaniet AS | Drammen | 1981 |
| Kontoreksperten AS | Helle | 2015 |
| Kontorforum AS | Brønnøysund | 1987 |
| Kontorinteriør AS | Rørvik | 1983 |
| Kontorinteriør Ringerike AS | Hønefoss | 2009 |
| Kontorleverandøren Gjøvik AS | Hunndalen | 1998 |
| Kontorleverandøren Hamar AS | Hamar | 1992 |
| Kontorleverandøren Lillehammer AS | Lillehammer | 1992 |
| Kontormiljø Ringerike AS | Hønefoss | 2003 |
| Kontorpartner AS | Porsgrunn | 2010 |
| Kontorplan AS | Orkanger | 1989 |
| Kontorpunkt AS | Måløy | 1991 |
| Kontorrama AS | Oslo | 1984 |
| Kontorsenteret AS | Førde | 1992 |
| Kontorsenteret Østfold AS | Halden | 2003 |