| Indre Alsåker Skogsveglag SA | Utne | 2019 |
| Indre Andørja Grunneierlag SA | Ånstad | 1968 |
| Indre Buer AS | Havøysund | 1997 |
| Indre Eide AS | Haugesund | 2008 |
| Indre Eidsfjord Grendelag SA | Sortland | 2010 |
| Indre Eiendom AS | Oslo | 1996 |
| Indre Grovfjord Elgvald SA | Grovfjord | 1996 |
| Indre Haugaland Tomteselskap AS | Skjold | 1998 |
| Indre Havn Eiendom AS | Hønefoss | 1997 |
| Indre Havn Eiendom Narvik AS | Narvik | 2020 |
| Indre Havneby AS | Horten | 2012 |
| Indre Havneby Bolig AS | Billingstad | 2016 |
| Indre Isane Skogsbilveg SA | Davik | 2012 |
| Indre Næringseiendom AS | Lillestrøm | 2022 |
| Indre Poll Eiendom AS | Arendal | 2024 |
| Indre Risør Skjærgård AS | Søndeled | 2009 |
| Indre Viken Eiendom AS | Spydeberg | 2019 |
| Indre Østfold Drift Og Eiendom AS | Mysen | 2014 |
| Indre Østfold Eiendom AS | Askim | 2021 |
| Indregård Holding AS | Fauske | 2019 |
| Indregården AS | Bjørkelangen | 1987 |
| Indreholmen Bygg AS | Storebø | 2003 |
| Indreholmen Eiendom AS | Storebø | 2019 |
| Indremisjonssamskipnaden Holding AS | Stord | 2019 |
| Indrian AS | Åkrehamn | 2005 |
| Indseth Eiendom AS | Ski | 1996 |
| Indseth Holding AS | Ski | 2014 |
| Industri & Eiendom AS | Rådal | 2002 |
| Industri Anlegg AS | Oslo | 1993 |
| Industri Eiendom AS | Stavanger | 2013 |
| Industri Energi Holding AS | Oslo | 2007 |
| Industri Engineering AS | Drammen | 1997 |
| Industri Engineering Eiendom AS | Drammen | 2011 |
| Industri Invest Nord AS | Hammerfest | 2006 |
| Industri Mek Eiendom AS | Hovin I Gauldal | 1989 |
| Industri Og Boligeiendom AS | Oslo | 1963 |
| Industri Og Boligvarme Eiendom AS | Lillesand | 2005 |
| Industri Og Lastebillakkering AS | Fauske | 2003 |
| Industribakken 5 AS | Brønnøysund | 2022 |
| Industribehov Holding AS | Oslo | 1986 |
| Industribygg AS | Åros | 1971 |
| Industribygg Eiendomsutvikling AS | Gjøvik | 2017 |
| Industribygg Eigedom AS | Sandane | 2009 |
| Industribygg Gjøvik AS | Gjøvik | 2017 |
| Industribygg Holding AS | Borgen | 2005 |
| Industribygg Næring AS | Gjøvik | 1968 |
| Industribygg Sør AS | Saltrød | 1986 |
| Industribygget AS | Os | 1994 |
| Industrieiendom Skien AS | Oslo | 2020 |
| Industrieiendom Sørlandet AS | Kristiansand S | 2017 |
| Industrielt Produksjonsverktøy AS | Halden | 2001 |
| Industriens Og Eksportens Hus AS | Oslo | 2010 |
| Industrifeldt Eiendom AS | Alta | 2010 |
| Industrifinans AS | Oslo | 2019 |
| Industrifinans Eiendom AS | Oslo | 2017 |
| Industrifinans Eiendomsforvaltning AS | Oslo | 2022 |
| Industrifinans Kino 2 Eiendom AS | Oslo | 2004 |
| Industrigata 1 AS | Oslo | 2024 |
| Industrigata 1 Kvinesdal AS | Kvinesdal | 2021 |
| Industrigata 11 AS | Oslo | 2017 |
| Industrigata 15 AS | Haugesund | 2022 |
| Industrigata 17 AS | Langhus | 1974 |
| Industrigata 21 AS | Brekstad | 2012 |
| Industrigata 22 AS | Oslo | 1968 |
| Industrigata 24 AS | Haugesund | 2021 |
| Industrigata 27 AS | Kvinesdal | 2021 |
| Industrigata 3 Kvinesdal AS | Kvinesdal | 2021 |
| Industrigata 36 Lillehammer AS | Lillehammer | 2017 |
| Industrigata 49 AS | Oslo | 2011 |
| Industrigata 5 AS | Oslo | 2020 |
| Industrigata 52A AS | Oslo | 2008 |
| Industrigata 54 Lillehammer AS | Hamar | 1996 |
| Industrigata 58 AS | Oslo | 2006 |
| Industrigata 60 Lillehammer AS | Gjøvik | 2020 |
| Industrigata 7 AS | Kristiansand S | 2012 |
| Industrigata 7 Lier AS | Lierstranda | 2016 |
| Industrigata 9 AS | Åfjord | 2018 |
| Industrigata Eiendom AS | Brumunddal | 1988 |
| Industrigata Holding AS | Oslo | 2020 |
| Industrigata Tomt AS | Hamar | 2025 |
| Industrigata Utvikling AS | Oslo | 2010 |
| Industrigaten 2 AS | Karmsund | 1923 |
| Industrigaten 34 AS | Oslo | 2001 |
| Industrigaten 36 AS | Oslo | 2011 |
| Industrigaten 46 AS | Oslo | 2019 |
| Industrigaten 5 AS | Kristiansand S | 2001 |
| Industrigaten 59 AS | Oslo | 2016 |
| Industrigaten Kombibygg I AS | Lierstranda | 2017 |
| Industrigt 22 AS | Tiller | 2007 |
| Industrihallene Eiendom AS | Namsos | 2005 |
| Industriholding AS | Holmsbu | 1992 |
| Industrihøyden 2 AS | Alta | 1993 |
| Industrihøyden 20 AS | Alta | 2025 |
| Industriinvest I AS | Trondheim | 2006 |
| Industrikvartalet AS | Mo I Rana | 2025 |
| Industrilakkering Eiendom AS | Vestby | 1994 |
| Industriparken Bardu AS | Bardu | 2009 |
| Industriparken Eiendom AS | Trondheim | 2008 |
| Industripartnerne Eiendom AS | Stavanger | 2026 |
| Industriselskapet Grønland AS | Halden | 1997 |