| Kudalsvegen SA | Matrand | 2022 |
| Kudos AS | Bekkestua | 2018 |
| Kuhagen Service AS | Bryne | 2007 |
| Kuhammeren AS | Ulset | 2007 |
| Kuholmsveien 80 AS | Kristiansand S | 2014 |
| Kuholmsveien 80 B AS | Kristiansand S | 2012 |
| Kuholmsveien 80D AS | Kristiansand S | 2012 |
| Kuhus AS | Lora | 2007 |
| Kul Eiendom AS | Jakobsli | 2019 |
| Kula Eiendom AS | Bodø | 2006 |
| Kulan AS | Bergen | 2014 |
| Kulblik Og Klanderud Samvirkeforetak | Vestmarka | 2012 |
| Kulbrandstad Eiendom AS | Gåsbakken | 2011 |
| Kulden Eiendom AS | Ølen | 2022 |
| Kuldeteknikk Holding AS | Snarøya | 1974 |
| Kulen AS | Ulsteinvik | 2024 |
| Kulen Eiendom AS | Måløy | 2008 |
| Kulen Krogstad Holding AS | Trondheim | 2024 |
| Kuli Holding AS | Skatval | 2018 |
| Kulimport Eiendomsutvikling II AS | Oslo | 2023 |
| Kullbryggholmen AS | Rørvik | 2001 |
| Kullebund Eiendom AS | Kolbotn | 2016 |
| Kullebund Gård AS | Kolbotn | 2007 |
| Kullerød Eiendom AS | Oslo | 2000 |
| Kullerød Eiendomsinvest AS | Sandefjord | 2006 |
| Kullerød Kontorbygg AS | Fornebu | 2008 |
| Kullerødsvingen AS | Barkåker | 2022 |
| Kulleseid Eiendom AS | Bergen | 2022 |
| Kulli Invest AS | Kleppe | 2014 |
| Kullkaien AS | Stavanger | 1986 |
| Kulltangen AS | Brevik | 2020 |
| Kulltangvegen 5 AS | Porsgrunn | 2001 |
| Kulltomten AS | Harstad | 2017 |
| Kulpen AS | Snarøya | 2018 |
| Kulpåsen AS | Oslo | 1997 |
| Kulseth AS | Sykkylven | 2026 |
| Kult Hus AS | Myre | 2022 |
| Kulta Eiendom AS | Bodø | 2022 |
| Kultorp AS | Ålesund | 2015 |
| Kultorp Eiendom AS | Sarpsborg | 2019 |
| Kultorp Holding AS | Hafslundsøy | 2007 |
| Kulturbruket AS | Fjellhamar | 2018 |
| Kulturfabrikken Drift AS | Kristiansund N | 2019 |
| Kulturfabrikken Eiendom AS | Sortland | 2011 |
| Kulturfabrikken Eiendomsselskap AS | Kristiansund N | 2019 |
| Kulturgården Bjerkem - Eigedom AS | Steinkjer | 2023 |
| Kulturhallene Eiendom AS | Oslo | 2009 |
| Kulturhuset Eiendom Arendal AS | Arendal | 2010 |
| Kulturhuset Eiendom AS | Sandnes | 2004 |
| Kulturhuset Randaberg AS | Sandnes | 2023 |
| Kulturhuset Sundvang Ba | Kviteseid | 2005 |
| Kulturhuset Varde AS | Ålesund | 2009 |
| Kulturhuset Østre AS | Bergen | 2013 |
| Kulturhusvegen 19 AS | Nesttun | 2024 |
| Kulturinvest Halden AS | Halden | 2014 |
| Kulturkvartalet AS | Gamle Fredrikstad | 2023 |
| Kulturkvartalet Lillestrøm AS | Lillestrøm | 2017 |
| Kulturkvartalet Verftet Holding AS | Bergen | 2023 |
| Kulturparken AS | Brekstad | 2012 |
| Kultursatsing AS | Oslo | 2017 |
| Kultursentrum AS | Hønefoss | 2005 |
| Kulturveien 3590 AS | Misvær | 2023 |
| Kulås Eiendom AS | Oslo | 2003 |
| Kulås Park Utvikling AS | Rolvsøy | 2005 |
| Kulås Terrasse 6 Eiendom AS | Halden | 2024 |
| Kulås Utvikling AS | Oslo | 2014 |
| Kummeneje AS | Trondheim | 2015 |
| Kumudu Eiendom AS | Namsos | 2020 |
| Kundensbeste AS | Oslo | 2020 |
| Kungsbacka Eiendomsinvest AS | Trondheim | 2018 |
| Kungsbacka Holding AS | Oslo | 2004 |
| Kungu 33 AS | Husøysund | 2015 |
| Kunnskapshuset AS | Haugesund | 2006 |
| Kunnskapshuset Rådhusgata 5 AS | Vadsø | 2023 |
| Kunnskapskammeret AS | Bodø | 2005 |
| Kunnskapsparken Alta AS | Alta | 2005 |
| Kunnskapsparken AS | Ulefoss | 2018 |
| Kunnskapsparken Eiendom AS | Molde | 1999 |
| Kunnskapsparken Eiker AS | Hokksund | 2007 |
| Kunnskapsparken Senja AS | Finnsnes | 2019 |
| Kunnskapsparken Storslett AS | Storslett | 2008 |
| Kunnskapsveien 55 AS | Oslo | 2001 |
| Kunstkvartalet Nytorget AS | Stavanger | 2026 |
| Kunstkvarteriet Lofoten SA | Leknes | 2007 |
| Kunter AS | Kolbotn | 2010 |
| Kupen Eiendom AS | Raudeberg | 2017 |
| Kuplingshuset AS | Hølen | 2012 |
| Kuppelen AS | Kristiansand S | 2021 |
| Kurant Holding AS | Trondheim | 2020 |
| Kure Gård AS | Moss | 2013 |
| Kurer Holding AS | Kongsvinger | 1999 |
| Kureåsen Vel SA | Oslo | 2015 |
| Kuri Eiendom AS | Rissa | 2024 |
| Kurillvegen 9 AS | Oslo | 2018 |
| Kurius AS | Trondheim | 2021 |
| Kurland Eiendom AS | Sarpsborg | 2004 |
| Kurlandsvegen Panorama AS | Trollåsen | 2022 |
| Kurlandsåsen 2 Eiendom AS | Kolbotn | 2012 |
| Kurlandveien 2 Eiendom AS | Sarpsborg | 2012 |
| Kuro Eiendom AS | Snertingdal | 2012 |