| A.K.A. AS | Arts & recreation | 2023 |
| Adeptus AI AS | Information & communication | 2024 |
| Advokatfirmaet Støen & Thoresen Da | Professional & scientific | 2020 |
| Agma AS | | 2020 |
| Akhh Holding AS | | 2019 |
| Aktivt Regionsenter AS | Arts & recreation | 2018 |
| Aku Architects AS | Professional & scientific | 2021 |
| Am Helmen AS | Financial services | 2016 |
| An-Magrit Holding AS | Other services | 2021 |
| Anders Taaje AS | Information & communication | 2005 |
| ANS HADELAND TANKRENOVASJON Hans Tore Brænden og Ole Johan Stensrud | Administrative & support | 1986 |
| Ans Smietorget | Real estate | 1987 |
| Arctic Industries AS | Manufacturing | 2023 |
| Artor AS | Administrative & support | 2025 |
| AS Hadeland | Information & communication | 1918 |
| Astro Dyreklinikk AS | Professional & scientific | 1995 |
| Avastus AS | Professional & scientific | 1986 |
| Badstuåsen Eiendom AS | Real estate | 2021 |
| Bajlon Skog AS | Agriculture & fishing | 2021 |
| Bergsrud Eiendom AS | Real estate | 1975 |
| Bess Holding AS | | 2019 |
| Betongforbedring AS | Construction | 2015 |
| Betongforbedring Holding AS | Administrative & support | 2013 |
| Bio-Tech VVS Produkter AS | Construction | 2007 |
| Bivoks Norge AS | Agriculture & fishing | 2016 |
| Bjhh Holding AS | | 2019 |
| Bjørlien Invest AS | | 2023 |
| Bjørlien Skogservice AS | Agriculture & fishing | 2006 |
| Blomsterhandleren Gran AS | Wholesale & retail | 2014 |
| BM2C Holding AS | Wholesale & retail | 2014 |
| Bo På Landet AS | Real estate | 2014 |
| Bossanova AS | Professional & scientific | 2021 |
| Bovaro AS | Health & social care | 2024 |
| Br.Gamkinn AS | Agriculture & fishing | 2026 |
| Brillehjørnet AS | Wholesale & retail | 2000 |
| Bryx AS | Real estate | 2026 |
| Brødrene Nygaard Eiendom AS | Real estate | 2022 |
| Brødrenee Stenberg Ans | Agriculture & fishing | 2016 |
| Byggtjenester Hadeland AS | Construction | 2019 |
| Camad AS | | 2024 |
| Cara Figlia AS | | 2026 |
| Carisma Dame Og Herrefrisør Da | Other services | 2001 |
| Casa 11 Invest AS | Real estate | 1987 |
| Chimera AS | Information & communication | 2023 |
| Cimperial AS | Hospitality | 2014 |
| CLM Holding AS | Financial services | 2005 |
| Comfort Elektro Entreprenør AS | Construction | 2024 |
| David Chambers AS | Agriculture & fishing | 2016 |
| Decima Holding AS | | 2026 |
| Decima Invest AS | Real estate | 2026 |
| Diavola Band AS | Information & communication | 2025 |
| Dydal Eiendom AS | | 2021 |
| Dyrlegene På Hadeland AS | Professional & scientific | 2021 |
| Eiendom Og Takst AS | Construction | 2018 |
| Elviria Del Sol Hus 5 AS | Real estate | 1987 |
| Elviria Del Sol Hus 6 AS | Real estate | 1987 |
| Engeberget Invest AS | Real estate | 2023 |
| Engeberget Takst AS | Real estate | 2023 |
| Enkel Mote AS | Wholesale & retail | 2025 |
| Ensy AS | Construction | 2012 |
| Entreprenør Nygaard AS | Construction | 2023 |
| Entreprenørselskapet Stenberg & Co AS | Construction | 1987 |
| Euro Sko Gran AS | Wholesale & retail | 2009 |
| Fagerholt Gård Da | Agriculture & fishing | 2025 |
| Falkon Transport AS | Transport & logistics | 2020 |
| Fjelltun AS | Financial services | 2015 |
| Fjord & Fjell Utleie AS | Real estate | 2025 |
| Flyt IT AS | Information & communication | 2023 |
| Fontenehuset Hadeland AS | Health & social care | 2022 |
| Fortun Eiendom AS | Real estate | 2005 |
| Fotograf B.T.Stokke AS | Professional & scientific | 2010 |
| Frukt Og Grønt Land AS | Wholesale & retail | 2018 |
| FYR22 AS | Hospitality | 2026 |
| G Strøm Elektro AS | Construction | 2016 |
| G.S Express AS | Transport & logistics | 2025 |
| Gamkinn Mjølk Da | Agriculture & fishing | 2004 |
| Garant Sko Smietorget AS | Wholesale & retail | 2000 |
| Gillebo Holding AS | Real estate | 2008 |
| Gislebye Bygg AS | Construction | 1996 |
| Gislebye Invest AS | Construction | 2015 |
| GJ Multiservice AS | Other services | 2022 |
| Gjerdingen Invest AS | | 2022 |
| Glasslåven Kunstsenter & Atelier | Arts & recreation | 2015 |
| Glenn Syvertsen AS | Construction | 2018 |
| Glenn Syvertsen Maskin AS | Administrative & support | 2017 |
| Godshuset AS | Hospitality | 1995 |
| Gran Almenning Eiendom KS | Real estate | 2013 |
| Gran Almenning Invest AS | Real estate | 2013 |
| Gran Bil Da | Wholesale & retail | 1995 |
| Gran Bilpleie Martins Og Lunder Ans | Other services | 1990 |
| Gran Bygg & Elektro AS | Construction | 2012 |
| Gran Dekk Og Servicesenter AS | Wholesale & retail | 2015 |
| Gran Fisk Og Vilt Ans | Wholesale & retail | 1990 |
| Gran Fysio- Og Manuellterapi Da | Health & social care | 2018 |
| Gran Grunneierlag SA | Arts & recreation | 1955 |
| Gran Helsesenter AS | Real estate | 1983 |
| Gran Herreekvipering AS | Wholesale & retail | 1981 |
| Gran Hudpleieklinikk AS | Other services | 2001 |
| Gran Kiosk AS | Wholesale & retail | 2013 |
| Gran Legesenter Da | Health & social care | 2025 |