| Kabelvåg Yoga Da | Kabelvåg | 2023 |
| Kadi Studio AS | Fetsund | 2022 |
| Kae Consultants Ans | Oslo | 1992 |
| Kai AS | Arendal | 2006 |
| Kairos World AS | Oslo | 2023 |
| Kajakkpadling.No AS | Kodal | 2022 |
| Kajakkpilotene Da | Morvik | 2010 |
| Kajakkspesialisten AS | Vestfossen | 2012 |
| Kajlie Holding AS | Oslo | 2023 |
| Kakhaugen Ballstad Barnehage AS | Ballstad | 2023 |
| Kaldhussæters Helsetjenester AS | Oslo | 2023 |
| Kaldshola AS | Finsland | 2022 |
| Kaldvell Åpen Barnehage AS | Lillesand | 2023 |
| Kalvehagen Familiebarnehage - Avd Hundremeterskogen Da | Kristiansand S | 2019 |
| Kalvehagen Familiebarnehage Da | Kristiansand S | 2002 |
| Kamal Coaching AS | Fyllingsdalen | 2024 |
| Kamaldip Holding AS | Fyllingsdalen | 2024 |
| KAMEL555 Holding AS | Oslo | 2022 |
| Kamerat Tofteland AS | Søgne | 2007 |
| Kampen Mot Hodet AS | Asker | 2024 |
| Kampklar AS | Kongsberg | 2026 |
| Kanalspesialistene AS | Bergen | 2012 |
| Kaospilotene Norge Da | Oslo | 2006 |
| Kapelo AS | Oslo | 2004 |
| Kapitelberget Natur - Og Kulturbarnehage SA | Skien | 1991 |
| Karakterboost AS | Oslo | 2024 |
| Karasjok Kjøreskole AS | Karasjok | 2014 |
| Kardangen Trafikkskole AS | Kristiansand S | 2011 |
| Kardemomme Barnehage SA | Oslo | 1994 |
| Kari Mettes Trafikkskole AS | Harstad | 2024 |
| Kari Nyhus AS | Tolvsrød | 2022 |
| Karin Gamst AS | Våle | 2018 |
| Karina Alsos AS | Nodeland | 2024 |
| Karine Andreassen AS | Stavern | 2015 |
| Karlsen Trafikkskole AS | Tromsø | 2014 |
| Karmsund Barnehage AS | Avaldsnes | 2006 |
| Karmsund Trafikkskole AS | Kopervik | 2018 |
| Karmsundet Båt, Mat & Vin AS | Kopervik | 2014 |
| Karmøy Helse & Harmoni AS | Kopervik | 2026 |
| Karriereakademiet AS | Vollen | 2020 |
| Karrierelaboratoriet AS | Stavanger | 2018 |
| Karrierepiloten AS | Bodø | 2022 |
| Karriereportalen AS | Sandefjord | 2026 |
| Karrieresupport AS | Strømmen | 2020 |
| Karveslettlia Barnehage SA | Kvaløysletta | 1994 |
| Kase AS | Skedsmokorset | 2021 |
| Kasland Trafikkskole AS | Bø I Telemark | 1981 |
| Kasland Trafikkskole Notodden AS | Notodden | 2023 |
| Kasofil AS | Oppegård | 2010 |
| Katalyst Konsult AS | Oslo | 2024 |
| Kateter AS | Trondheim | 2022 |
| Katinka Ødegaard Holding AS | Auli | 2019 |
| Katta Barnehage AS | Oslo | 2022 |
| Kattemskogen Barnehage AS | Heimdal | 2006 |
| Kausvol Gardsbarnehage AS | Stange | 2006 |
| Kavakava AS | Oslo | 2011 |
| Kawa Invest AS | Langhus | 2011 |
| Kayak Bergen AS | Herdla | 2020 |
| Kazegroup AS | Sandvika | 2015 |
| KBT Fagskole AS | Trondheim | 2019 |
| Ke-Invest AS | Tromsø | 2022 |
| Keeper AS | Morvik | 2019 |
| Keipi AS | Oslo | 2023 |
| Keiron AS | Oslo | 2016 |
| Kelvin Top-Set Limited | Irvine Ka11 4Lf | 2020 |
| Kens Trafikkskole AS | Lakselv | 2014 |
| Kept AS | Laksevåg | 2024 |
| Keramikkverkstedet Asker AS | Asker | 2025 |
| Ket-Os AS | Fetsund | 2008 |
| Key Trafikkskole AS | Oslo | 2014 |
| KF Goodwill AS | Jessheim | 2005 |
| Kfum Barnehage AS | Oslo | 2021 |
| KGB Dans & Ballett AS | Sandvika | 1998 |
| KGR Holding AS | Drammen | 2022 |
| Khan Trafikkskole AS | Trollåsen | 2023 |
| Ki-Senteret Oslo Limited Nuf | Heggedal | 2010 |
| Kibra AS | Snarøya | 2020 |
| Kick Dansestudio AS | Haugesund | 2018 |
| Kickstart Bedrift AS | Oslo | 2024 |
| Kidsa Barnehager AS | Bergen | 2010 |
| Kidsa Drift AS | Oslo | 2015 |
| Kidsa Strømme AS | Oslo | 2006 |
| Kiellandskogen Fus Barnehage AS | Egersund | 2018 |
| Kiki Holding AS | Drammen | 2024 |
| Kiku AS | Stavanger | 2004 |
| Kilde AS | Oslo | 2011 |
| Kilebygda Montessoriskole SA | Skien | 2009 |
| Kilen Barnehage AS | Gressvik | 2022 |
| Killingmo Kompetanse AS | Barkåker | 2014 |
| Kim Wigaard AS | Oslo | 2024 |
| Kingdom Lifestyle AS | Mo I Rana | 2015 |
| Kippermoen Friluftsbarnehage AS | Mosjøen | 2007 |
| Kirkemoen Barnehage SA | Sokna | 1990 |
| Kirkenes Performance Center AS | Hesseng | 2026 |
| Kirkerudbakken Friluftsbarnehage SA | Vøyenenga | 1989 |
| Kirketunet Barnehage AS | Åkrehamn | 2020 |
| Kirsten T. Johansen AS | Torød | 2005 |
| Kirsti Skulleruds Ballett- Og Dansestudio AS | Slependen | 2012 |
| Kis Kompetanse AS | Drammen | 2001 |
| Kitesurfing.No AS | Kleppe | 2021 |