| Misk Holding AS | Financial services | 2005 |
| Moe Mekaniske Verksted, Kurs Og Kompetansebygging AS | Other services | 2021 |
| Momoen Eiendom AS | Construction | 2023 |
| MR. Pukk Høland AS | Mining & quarrying | 1989 |
| Murmester Lind AS | Construction | 2024 |
| Nadden Byggservice AS | Construction | 2016 |
| Nadden Invest AS | | 2021 |
| Naess Rope Access AS | Professional & scientific | 2024 |
| Naha Eiendom AS | Real estate | 2019 |
| Nikolaisens Holding AS | | 2019 |
| Nor-Way Fritidsutleiesenter AS | Administrative & support | 2021 |
| Nordic Entreprenør Service AS | Construction | 2026 |
| Noreng Eiendom AS | Real estate | 2005 |
| Norsk Skogkontor AS | Real estate | 2001 |
| Optima Konsulting AS | Professional & scientific | 2025 |
| Panorama Byggutvikling AS | Real estate | 2021 |
| Piotr Holding & Invest AS | | 2025 |
| PMH Bygg Og Eiendom AS | Real estate | 2019 |
| Prestefrua AS | Arts & recreation | 2025 |
| Probygg Holding Norge AS | | 2026 |
| Proff Håndverker Group AS | Construction | 2018 |
| Puente Invest AS | | 2021 |
| Pw-Bemanning AS | Professional & scientific | 2024 |
| R.A.Transport AS | Transport & logistics | 2006 |
| Re-To AS | Hospitality | 1990 |
| Reditus Retail AS | Wholesale & retail | 2013 |
| Rentaly AS | Construction | 2020 |
| Request Logic AS | Information & communication | 2021 |
| Revalia AS | Construction | 2016 |
| Robert's Bygg Ans | Construction | 2007 |
| RS Bygg & Eiendom AS | Construction | 2022 |
| RSV Holding AS | Construction | 2021 |
| Runes Containerservice AS | Water & waste | 1998 |
| Rørhelten AS | Construction | 2026 |
| Sami Thermo Transport AS | Transport & logistics | 2020 |
| Scanman Jussi H Kaukiainen | Construction | 2001 |
| Seierstad Bygg Og Anlegg AS | Agriculture & fishing | 1987 |
| Skatollet AS | Wholesale & retail | 2015 |
| Skodre SA | Energy | 1919 |
| Skulerud Grendehus SA | Real estate | 2019 |
| Skårer Gård Da | Agriculture & fishing | 2018 |
| Soin AS | Professional & scientific | 2003 |
| Stasjonen På Løken AS | Wholesale & retail | 2020 |
| Steff.Tech AS | Information & communication | 2017 |
| Stela AS | Manufacturing | 1990 |
| Stokkebekk Service AS | Manufacturing | 2016 |
| Stokkebekk-Holding AS | | 2026 |
| Stutteri Medvind Ans | Agriculture & fishing | 2022 |
| Stutteri Medvind Holding AS | | 2025 |
| Sultan Byggservice AS | Construction | 2019 |
| Tenk Større AS | Professional & scientific | 2015 |
| Thon Andelsskog SA | Agriculture & fishing | 1950 |
| Toge Distribution Ans | Wholesale & retail | 2000 |
| Trollkjørkeskogen Da | Agriculture & fishing | 2025 |
| Trygg Maskinutleie AS | Administrative & support | 2024 |
| Trætteberg Trelast AS | Manufacturing | 2012 |
| Tømte Mur & Byggkompetanse AS | Construction | 2026 |
| Valida Invest AS | Financial services | 2006 |
| Vardehøgdveien Skogsbilveilag SA | Real estate | 2025 |
| Vev Romerike AS | Energy | 2004 |
| Westreng Eiendom AS | Real estate | 2003 |
| Ømt AS | Professional & scientific | 2020 |
| Østreng Eiendom Og Utleie AS | Real estate | 2018 |
| Østreng Holding AS | Transport & logistics | 2018 |
| Østreng Transport AS | Transport & logistics | 2018 |
| Østreng Varetransport AS | Transport & logistics | 2018 |
| Østvet AS | Professional & scientific | 2022 |