| Anleggsplan AS | Professional & scientific | 1990 |
| Aptide AS | Information & communication | 2025 |
| Arild Gudmundsen AS | Construction | 2021 |
| Articon Norge Nuf | Construction | 2013 |
| Bekkjorden Og Nysæther Bygg AS | Construction | 1996 |
| Bekkjorden Og Nysæther Eiendom AS | Real estate | 1995 |
| Bekkjorden Skog AS | Agriculture & fishing | 2013 |
| Bergan Consulting AS | Professional & scientific | 2025 |
| Bergelien Holding AS | Real estate | 2021 |
| Bjørn K.B. Holding AS | | 2025 |
| BN Hjelpeselskap AS | Real estate | 2026 |
| Bogstrand Holding AS | Professional & scientific | 2024 |
| Bogstrand Utleie AS | | 2025 |
| Brekkshaugen AS | | 2023 |
| BS Infra AS | Real estate | 2021 |
| By Nelle AS | Wholesale & retail | 2026 |
| Byspire AS | Agriculture & fishing | 2015 |
| Bølestveiten AS | | 2023 |
| Deveg Eiendom AS | Real estate | 2017 |
| Dibeko Da | Information & communication | 2019 |
| Drømmehytta Numedal AS | Real estate | 2023 |
| E.Holding AS | Real estate | 2022 |
| Entreprenørservice AS | Construction | 1997 |
| Fjellkompaniet AS | Wholesale & retail | 2020 |
| Fjellvill AS | Real estate | 2011 |
| Fossen Bygg & Interiør AS | Construction | 1984 |
| Fulsaas & Løkseth AS | Construction | 2019 |
| Fulsaas Eiendom AS | Real estate | 2023 |
| Fulsaas Holding AS | Construction | 2023 |
| Fulsaas Maskin AS | Construction | 2023 |
| Gatabø AS | | 2026 |
| Gladheim Invest AS | | 2024 |
| Gladheim Multiservice AS | Construction | 2016 |
| GSK Finans AS | | 2020 |
| Hagen Rune Holding AS | Financial services | 2016 |
| Hamgaard Fysioterapi AS | Health & social care | 2021 |
| Haug Service Og Vedlikehold AS | Manufacturing | 2022 |
| Hekåe Veglag SA | Construction | 2010 |
| Herleiks Eiendom AS | Construction | 2016 |
| Himoni-K Holding AS | | 2025 |
| HMS Utvikling AS | Real estate | 2020 |
| Jens Gladheim AS | Real estate | 2005 |
| KB Prosjekter AS | Construction | 2008 |
| Kilefisket SA | Arts & recreation | 2011 |
| Killingdalen Skistugu AS | Real estate | 2014 |
| Killingdalen Utvikling AS | Real estate | 2007 |
| Kongsberg Sagblad AS | Manufacturing | 1982 |
| Kvisle Skog Ans | Real estate | 1979 |
| Lauvhovdnuten - Lauvhovdlia Veglag SA | Real estate | 2017 |
| Lemoo Holding AS | Real estate | 2014 |
| Lruud AS | | 2025 |
| Medåe Kraft AS | Energy | 2005 |
| Mjogetjønnvegen Veglag SA | Administrative & support | 2002 |
| Multiscan AS | Professional & scientific | 2014 |
| Nabokjerringan Da | Manufacturing | 2014 |
| Naturforvalter AS | Professional & scientific | 2011 |
| Naturhytta AS | Real estate | 2019 |
| Nedre Toen Da | Agriculture & fishing | 2008 |
| Neretveiten AS | | 2023 |
| Nestrud Skog Da | Agriculture & fishing | 2012 |
| Nore Fjelldrift AS | Construction | 2016 |
| Numedal Blomster AS | Wholesale & retail | 2014 |
| Numedal Entreprenør AS | Professional & scientific | 2002 |
| Numedal Produksjon AS | Health & social care | 1992 |
| Numedal Regnskapskontor AS | Professional & scientific | 2000 |
| Numedal Reisemålsutvikling SA | Other services | 2026 |
| Numedal Skysslag Da | Wholesale & retail | 2002 |
| Numedal Transportservice AS | Transport & logistics | 2000 |
| Numedalstunet AS | Real estate | 2017 |
| Numehytta AS | Construction | 2014 |
| Nye Bekkjorden Og Nysæther Eiendom AS | Real estate | 2026 |
| Nye Mykstufoss Mølle AS | Real estate | 2021 |
| Nygård Maskin Og Skogsdrift AS | Construction | 2025 |
| Nørståe Kraft AS | Energy | 2004 |
| One Berg Invest AS | | 2026 |
| Regnskapsrådgivning AS | Professional & scientific | 2019 |
| Retek Og Service AS | Professional & scientific | 2020 |
| Skjærbrekkavegen SA | Agriculture & fishing | 1951 |
| Smyl-Li AS | Real estate | 2017 |
| Steintjønn AS | Real estate | 2017 |
| Strysse Eiendom AS | Real estate | 2019 |
| Strysse Holding AS | | 2026 |
| Strysse Mek AS | Manufacturing | 2013 |
| Svartløk Hyttegrend Veglag Da | Real estate | 2021 |
| Svingom SA | Professional & scientific | 2021 |
| Søre Bjørkgård Fjøs AS | Real estate | 2011 |
| Søre Bjørkgård Melk Da | Agriculture & fishing | 2011 |
| Søre Gladheim Gård Ans | Agriculture & fishing | 2005 |
| Søre Vegglifjell Drift AS | Real estate | 2019 |
| Søre Vorsetvatn AS | Real estate | 2020 |
| Tondra Utmarkslag SA | Real estate | 2013 |
| TP Total AS | Construction | 2014 |
| Tveiten Eiendom Veggli AS | Real estate | 2009 |
| Veggli Auto AS | Wholesale & retail | 2002 |
| Veggli Bakeri AS | Manufacturing | 2023 |
| Veggli Bil Og Fritid AS | Other services | 2015 |
| Veggli Bio AS | Energy | 2011 |
| Veggli Eiendom AS | Real estate | 2015 |
| Veggli Fjellboring AS | Construction | 2006 |
| Veggli Fjellstue AS | Hospitality | 2020 |