| KRM Tekniske Fagskole AS | Geilo | 2020 |
| Kroerbarnehagen Da | Vestby | 2011 |
| Krog Grini AS | Ørje | 2015 |
| Krognes Coaching AS | Hamar | 2023 |
| Krogness & Flander AS | Hønefoss | 2009 |
| Krohn Health & Fitness AS | Nesttun | 2026 |
| Krohnstad Montessoribarnehage Skaret AS | Molde | 2023 |
| Krohnstad Montessoribarnehage Årø AS | Molde | 2005 |
| Krohnstad Montessoriskole AS | Molde | 2018 |
| Krokaas Trafikkskole AS | Florvåg | 2026 |
| Krokedalen Barnehage SA | Ørsta | 2001 |
| Krokeide Videregående Skole AS | Fana | 1998 |
| Kroken Event AS | Åbogen | 2006 |
| Krokusen Barnehage AS | Sandefjord | 2005 |
| Kroppshelse AS | Rolvsøy | 2025 |
| KRS Urban Dance Center AS | Kristiansand S | 2021 |
| Krusedull Barnehage Ans | Oslo | 1997 |
| Krutthuset Oslo SA | Oslo | 2018 |
| Kruttverket Fus Barnehage AS | Nittedal | 2019 |
| Kryptosamvirket SA | Rasta | 2019 |
| Kryptoskolen AS | Oslo | 2022 |
| Krysset AS | Langhus | 2023 |
| Krystallklart Budskap AS | Heggedal | 2011 |
| Kråa AS | Ålen | 2012 |
| Kråka Fus Kulturbarnehage AS | Moss | 2019 |
| Kråkeby Barnehage AS | Kråkerøy | 2022 |
| Kråkerøy Trafikkskole AS | Kråkerøy | 2012 |
| Kråkeslottet Barnehage SA | Tromsø | 1982 |
| Kråkeyoga AS | Oslo | 2024 |
| KS Privatist AS | Slattum | 2020 |
| Ks-Agenda AS | Oslo | 2005 |
| KS7 Holding AS | Bergen | 2023 |
| Ksakademi AS | Oslo | 2021 |
| KSB Performance and Consulting AS | Bergen | 2025 |
| Kscc AS | Trondheim | 2021 |
| KSS AS | Lillehammer | 2014 |
| KTR Quesada SL Nuf | Es-03170 Rojales | 2025 |
| Kublakan AS | Bjørnemyr | 2021 |
| Kuboa AS | Oslo | 2015 |
| Kudo AS | Bergen | 2020 |
| Kulinarisk Akademi AS | Oslo | 2018 |
| Kulinarisk Akademi Varemerke AS | Oslo | 2018 |
| Kulturakademiet AS | Oslo | 2007 |
| Kulturbarna AS | Oslo | 2010 |
| Kulturbarnehaven Grasham AS | Birkeland | 2023 |
| Kulturlandskaperne AS | Skien | 2013 |
| Kulturlandskapssenteret I Telemark AS | Hjartdal | 2005 |
| Kulturminnehjelp AS | Oslo | 2019 |
| Kulturparken Fus Barnehage AS | Oslo | 2018 |
| Kulturstudier AS | Oslo | 1997 |
| Kulturvugga Barnehage AS | Holum | 2015 |
| Kulås Barnehage AS | Sarpsborg | 2022 |
| Kundeserviceskolen AS | Oslo | 2018 |
| Kunnskapsbanken AS | Oslo | 2022 |
| Kunnskapsgnist.No AS | Åsgårdstrand | 2025 |
| Kunnskapssenteret AS | Larvik | 2025 |
| Kunnskapstrening IT AS | Sjøvegan | 2017 |
| Kunst Og Kulturformidling AS | Oslo | 1998 |
| Kunst Og Tradisjon Ans | Skjolden | 1998 |
| Kunstdalen AS | Bergen | 2026 |
| Kunstland AS | Vestsida | 2012 |
| Kunstnerboligen AS | Lødingen | 2024 |
| Kunstskolen I Stavanger AS | Stavanger | 2019 |
| Kurlan AS | Florø | 2021 |
| Kurs & Kompetanse Rogaland AS | Varhaug | 2020 |
| Kurs 74 AS | Nesttun | 2022 |
| Kurs Advokaten Da | Larvik | 2022 |
| Kurs Akademiet Ans | Stord | 2000 |
| Kurs I Helse AS | Finnsnes | 2021 |
| Kurs I Skolen AS | Ski | 2023 |
| Kurs Og Kompetansesystemer AS | Furnes | 2020 |
| Kursconsult AS | Oslo | 2019 |
| Kursdama AS | Fetsund | 2022 |
| Kurserne Da | Horten | 2010 |
| Kursexperten AS | Halden | 2022 |
| Kursholder Hunnestad AS | Porsgrunn | 2024 |
| Kursiv Kompetanse AS | Lillehammer | 2025 |
| Kursjentene AS | Oslo | 2017 |
| Kursleverandøren AS | Lillehammer | 2016 |
| Kursoria AS | Vinterbro | 2021 |
| Kurspartner AS | Mandal | 2025 |
| Kursproffen AS | Maura | 2011 |
| Kurssenteret Vestlandet AS | Paradis | 2014 |
| Kvadda Trafikkskole AS | Nodeland | 2023 |
| Kvadtraining AS | Kristiansand S | 2018 |
| Kvala Barnehage AS | Haugesund | 1999 |
| Kvalavåg Montessoriskole AS | Kvalavåg | 2011 |
| Kvalitet Invest AS | Stokmarknes | 2009 |
| Kvam Barnehage SA | Steinkjer | 1997 |
| Kvam Trafikkskule AS | Norheimsund | 2017 |
| Kvamsdal Form AS | Oslo | 2025 |
| Kvardagsmagi AS | Telavåg | 2020 |
| Kvarstadpedersen AS | Lillehammer | 2023 |
| Kvarteret Barnehage AS | Oslo | 2018 |
| Kvartsen Holding II AS | Rørvik | 2024 |
| Kveldrovegen Barnehage SA | Tromsø | 1988 |
| Kvenndalen AS | Larvik | 2003 |
| Kvernstad Trafikkskole AS | Gran | 2019 |
| Kvikk.Life AS | Fjellhamar | 2018 |
| Kvilepulsen AS | Håvik | 2024 |