| A Jenserud & Sønn AS | Wholesale & retail | 1992 |
| A. Jacobsen Invest AS | | 2025 |
| Accept Consult Ans | Administrative & support | 1989 |
| Accept Import Per G Nordheggen & Co | Wholesale & retail | 1984 |
| Aet Holding AS | Wholesale & retail | 2017 |
| Aleksandersen Lyd & Lys AS | Arts & recreation | 2014 |
| Alm & Alm Eiendomservice AS | Administrative & support | 2016 |
| Almenningsbutikken AS | Wholesale & retail | 2013 |
| Amundrudvegen AS | Real estate | 2017 |
| Andfossen Eiendom AS | Real estate | 2011 |
| Anleggsgartner Håvard Linstad AS | Administrative & support | 2019 |
| Aptin AS | Wholesale & retail | 2024 |
| Atletico Jaren AS | Arts & recreation | 2019 |
| Atos AS | Real estate | 2004 |
| Auto Refinishing Norway AS | Wholesale & retail | 2014 |
| Autosalg Mohagen AS | Wholesale & retail | 2015 |
| Autoskade AS | Other services | 1988 |
| B Properties AS | Real estate | 2018 |
| B&T Construction | | 2008 |
| B&T Construction AS | Real estate | 2009 |
| B.A. Torres AS | Arts & recreation | 2022 |
| Badstuvegen Grunneierlag SA | Real estate | 2002 |
| Bba Tomteutvikling AS | Real estate | 2020 |
| Bil 1 Gran AS | Wholesale & retail | 2010 |
| Bilgaarden AS | Wholesale & retail | 1996 |
| Bilteknikk Gran AS | Other services | 2012 |
| Bjerkegutua Veglag SA | Real estate | 2025 |
| Blikk Og Takservice AS | Construction | 2009 |
| BM Autosalg AS | Wholesale & retail | 2019 |
| Bm-F Holding AS | Professional & scientific | 2025 |
| Boklibris AS | Wholesale & retail | 2013 |
| Boma Entreprenør AS | Administrative & support | 2020 |
| Brandbu Holding AS | Wholesale & retail | 2014 |
| Brandbu Snødrift AS | Administrative & support | 2011 |
| Brandbu Vald SA | Agriculture & fishing | 2024 |
| Bresk AS | Health & social care | 2009 |
| Bring Intermodal AS | Transport & logistics | 1991 |
| Brynsås Eiendom AS | Real estate | 2014 |
| Brødrene Ekeberg AS | Other services | 2008 |
| BSB Holding AS | Administrative & support | 2019 |
| Bta Invest AS | Real estate | 2000 |
| Bygg Og Fugetjenester AS | Construction | 2002 |
| Byggelageret AS | Real estate | 2002 |
| Byggservice Innlandet AS | Construction | 2014 |
| C Andersen Eiendom AS | Real estate | 2014 |
| Climacomfort AS | Wholesale & retail | 2020 |
| Container Solutions AS | Administrative & support | 2020 |
| Containerservice Hadeland AS | Water & waste | 1999 |
| Devent AS | Information & communication | 2021 |
| Devent Live AS | Information & communication | 2024 |
| Doning AS | Construction | 2021 |
| Drivstoffdama AS | Wholesale & retail | 2023 |
| Dyrud Eiendom AS | Real estate | 2022 |
| Dyrud Invest AS | | 2025 |
| Dyrud Maskin Og Utemiljø AS | Construction | 2015 |
| E S. Borgli Holding AS | | 2026 |
| Easy Access AS | Wholesale & retail | 2009 |
| Edm Holding AS | | 2021 |
| Eikman Eiendom AS | Real estate | 2013 |
| Eikman Invest AS | Real estate | 2005 |
| Eiven AS | Real estate | 2012 |
| Elkjøp Stormarked Hadeland AS | Wholesale & retail | 2003 |
| Ep Group AS | Wholesale & retail | 2016 |
| Ep Mohagen AS | Real estate | 2023 |
| Eplast AS | Manufacturing | 2017 |
| Erlend Karlsen Holding AS | Wholesale & retail | 2010 |
| Europort AS | Wholesale & retail | 2005 |
| Exa Digital AS | Wholesale & retail | 1999 |
| Fagertun Trygt Og Trivelig AS | Health & social care | 2017 |
| Feyling Mekaniske Verksted AS | Manufacturing | 2002 |
| Fint-Utemiljø AS | Wholesale & retail | 2021 |
| Fixdet AS | Professional & scientific | 2026 |
| Fnordli Eiendom AS | Other services | 2008 |
| Fnordli Holding AS | Other services | 2008 |
| Fortuna Exploring & Living AS | Administrative & support | 2026 |
| Framstad AS | Construction | 2013 |
| Framstad Utvikling AS | Real estate | 2012 |
| Fugetjenester AS | Construction | 2000 |
| G. Kolbjørnsen Holding AS | | 2022 |
| G3 Gran Tre AS | Manufacturing | 2017 |
| Gjefsenmyrvegen 17 AS | Real estate | 2015 |
| GM Grøntanlegg AS | Administrative & support | 2013 |
| Good Options AS | Real estate | 2006 |
| Goodvibe Dansestudio AS | Education | 2018 |
| GVK Holding AS | | 2022 |
| GVT AS | Transport & logistics | 2024 |
| Hadeland Autolakk AS | Other services | 2018 |
| Hadeland Bilberging AS | Transport & logistics | 2024 |
| Hadeland Bilglass Eiendom AS | Real estate | 2010 |
| Hadeland Bilsenter Mohagen AS | Other services | 2012 |
| Hadeland Bobil AS | Other services | 2015 |
| Hadeland Bud Og Varetransport AS | Transport & logistics | 2023 |
| Hadeland Dekk AS | Wholesale & retail | 1988 |
| Hadeland Energi AS | Energy | 2003 |
| Hadeland Gjestegård AS | Hospitality | 2015 |
| Hadeland Gjestegård Eiendom AS | Real estate | 2008 |
| Hadeland Hagesenter AS | Wholesale & retail | 2018 |
| Hadeland Kraft AS | Energy | 1998 |
| Hadeland Maskin AS | Wholesale & retail | 1984 |
| Hadeland Maskinutleie AS | Administrative & support | 2000 |