| Kontrast Kantine AS | Trondheim | 2017 |
| Kooyman Holding AS | Rindal | 2020 |
| Kopervik Catering AS | Kopervik | 2019 |
| Kopervik Kebab & Isbar AS | Kopervik | 2021 |
| Kopervik Pizza AS | Kopervik | 2004 |
| Koppangen Brygger AS | Lyngseidet | 2003 |
| Kopparen Gategrill AS | Kopervik | 2018 |
| Korall AS | Balestrand | 2024 |
| Korean BBQ Chicken AS | Voss | 2016 |
| Korean Food AS | Oslo | 2022 |
| Korgen Camping AS | Korgen | 2020 |
| Korgen Camping Holding AS | Korgen | 2020 |
| Korgfjellet Fjellstue AS | Korgen | 1989 |
| Koriander Moss AS | Moss | 2020 |
| Koriander Værstetorvet AS | Moss | 2025 |
| Korn Hage & Spiseri AS | Buvika | 2013 |
| Korn Matverksted AS | Brønnøysund | 2024 |
| Kornelius Kro AS | Værøy | 1987 |
| Korsbakken Camping AS | Isfjorden | 2026 |
| Korshagen Pizza AS | Lillestrøm | 2022 |
| Korshamn Driftsselskap AS | Korshamn | 2009 |
| Korsmogrillen AS | Skarnes | 1998 |
| Korsnes Liu Holding AS | Mo I Rana | 2024 |
| Korsvegen Restaurant Simsek AS | Korsvegen | 2020 |
| Kort Og Godt Kafe Og Butikk AS | Lærdal | 2019 |
| Kortnes Hyttegrend AS | Lier | 1984 |
| Koru Catering AS | Arendal | 2023 |
| Kos Kafe Og Spiseri AS | Kristiansund N | 2020 |
| Kos Lofoten AS | Svolvær | 2026 |
| Kosekroken Kafé AS | Hønefoss | 2026 |
| Koselig Cafe AS | Arendal | 2025 |
| Koselig Holding AS | Kyrksæterøra | 2019 |
| Koselige | Tofte | 2023 |
| Koseverden AS | Tromsø | 2013 |
| Koshary AS | Moss | 2026 |
| Kosiur Restaurant Drift AS | Hønefoss | 2017 |
| Kosmos Klubb AS | Kristiansand S | 2025 |
| Kotech Utleie AS | Stavanger | 2024 |
| Kotmilo Gyros AS | Lørenskog | 2025 |
| Kotsu Kotsu AS | Hammerfest | 2026 |
| Kovacs Holding AS | Oslo | 2014 |
| Kowloon City Restaurant AS | Sem | 2014 |
| Kozeriet AS | Stavanger | 2014 |
| KP Nord Eiendom AS | Bodø | 2023 |
| KPH Drift AS | Gamle Fredrikstad | 2021 |
| KPL Holding AS | Risør | 2008 |
| KR Dalen Holding AS | Fitjar | 2008 |
| Kraft Pizzeria AS | Hønefoss | 2023 |
| Kraft Pizzeria Hønefoss AS | Hønefoss | 2021 |
| Kraft Pizzeria Kongsberg AS | Kongsberg | 2023 |
| Kraftfullt AS | Sandnes | 2016 |
| Kragerø Hotell AS | Kragerø | 2019 |
| Kragerø Resort Drift AS | Stabbestad | 2009 |
| Kragerø Sportell Og Apartments AS | Kragerø | 1999 |
| Kragerø Sushi AS | Kragerø | 2014 |
| Kragerø Thaimat AS | Kragerø | 2019 |
| Kragerøfjorden Camping AS | Stabbestad | 2022 |
| Krambua Trondheim AS | Trondheim | 1998 |
| Kramsjø AS | Herand | 2019 |
| Kranaskjæret Restaurant Og Catering AS | Kristiansund N | 2018 |
| Kranglefanten AS | Stavanger | 2016 |
| Kras AS | Brønnøysund | 2013 |
| Kreativ Catering Tommy Østhagen AS | Oslo | 2003 |
| Kreativt Kjøkken AS | Oslo | 2017 |
| Kred AS | Brønnøysund | 2007 |
| Krem Mat Og Kaffehus AS | Trondheim | 2012 |
| Kremar'N AS | Fagernes | 2019 |
| Kremen Av Kremen AS | Skien | 2025 |
| Kremen Herkules AS | Skien | 2016 |
| Kremmern Produksjon AS | Elverum | 1999 |
| Kress AS | Mosjøen | 2020 |
| Kreta Aroma AS | Gressvik | 2025 |
| KRG Drift Stryn AS | Stryn | 2022 |
| Krigensborg Holding AS | Kragerø | 2020 |
| Kringler Gjestegård AS | Maura | 2013 |
| Kringler Holding AS | Maura | 2013 |
| Kringsjå AS | Voss | 1993 |
| Kringsjå Hotell AS | Balestrand | 2018 |
| Kringsjåveien 21 AS | Vøringsfoss | 1993 |
| Kripta AS | Heimdal | 2019 |
| Krishna Restaurant Gol AS | Gol | 2026 |
| Kristensen Holding AS | Jørpeland | 2018 |
| Kristiansand Feriesenter Drift AS | Kristiansand S | 2012 |
| Kristiansand Hotelldrift AS | Kristiansand S | 2013 |
| Kristiansand Restaurant Invest AS | Hamresanden | 2000 |
| Kristiansand Rorbuferie AS | Flekkerøy | 2018 |
| Kristiansand Teknologipark Management AS | Kristiansand S | 2010 |
| Kristiansund Hotell AS | Kristiansund N | 2012 |
| Kristiansund Peders Ans | Kristiansund N | 1996 |
| Kristinejohanneas AS | Drøbak | 2024 |
| Kro Og Kantineservice Ans | Voss | 1998 |
| Kro Partner AS | Stord | 1996 |
| Kroa Thai Takeaway AS | Larvik | 2023 |
| Kroa Vår AS | Horten | 2013 |
| Kroa Vårres AS | Kjøpsvik | 2026 |
| Krogs Pizza Og Grill AS | Halden | 2024 |
| Krohn Sellin Holding AS | Nittedal | 2021 |
| Krohnviken Drift AS | Bergen | 1988 |
| Kroken Hemsedal AS | Hemsedal | 2017 |
| Krokholmen AS | Sørarnøy | 2005 |