| Fore Invest AS | | 2019 |
| Forma Digital AS | Information & communication | 2026 |
| Forseth Smith Invest AS | | 2026 |
| Fractional Flow AS | | 2013 |
| FREDHEIM1939 Invest AS | Real estate | 2015 |
| Fredriksen Graveservice AS | Construction | 2026 |
| Frys Tiden AS | Professional & scientific | 2024 |
| Fta Service AS | Construction | 2015 |
| Fuku Sushi AS | Hospitality | 2022 |
| FWL Holding AS | | 2026 |
| Fönix Miljö AB Nuf | Water & waste | 2020 |
| Ga Invest & Consulting AS | Professional & scientific | 2019 |
| Gako Holdco AS | Professional & scientific | 2021 |
| Gamlebyen Sportsbar AS | Hospitality | 2018 |
| Gaupås Barnehage SA | Education | 1992 |
| Geisha Izakaya AS | Hospitality | 2025 |
| Gentle Arctic AS | | 2026 |
| Gentle Holding AS | | 2026 |
| Geogrunn AS | Professional & scientific | 2019 |
| Geta Bakeriprodukter AS | Manufacturing | 2022 |
| Givnet AS | Information & communication | 2019 |
| Givnet Consulting AS | Information & communication | 2020 |
| Gjelstad Invest AS | Real estate | 2011 |
| Gjerts Marked AS | Wholesale & retail | 1986 |
| Globalfiber AS | Wholesale & retail | 2016 |
| Globalis Capital AS | | 2026 |
| Globalo Norge AS | Wholesale & retail | 2024 |
| Globe-Office AS | Professional & scientific | 2020 |
| Go Biten Pizza Ans | Hospitality | 1996 |
| Godaker Hageby AS | | 2018 |
| Godt Og Hjemmelaget Bakeri AS | Manufacturing | 2023 |
| Godt Og Hjemmelaget Invest AS | Manufacturing | 2022 |
| Godt Og Hjemmelaget Kafe Og Landhandel AS | Hospitality | 2022 |
| Golden Dragon AS | Hospitality | 2021 |
| Golem Kapital AS | Financial services | 2015 |
| GRANTS4SME AS | Information & communication | 2019 |
| Greaker Kiosk Og Bensin AS | Wholesale & retail | 2020 |
| Greco Holding AS | Professional & scientific | 2018 |
| Greco Invest AS | Professional & scientific | 2018 |
| Greenloop AS | Wholesale & retail | 2021 |
| Gregersen Industriemballasje AS | Real estate | 1980 |
| Grelland Eiendom AS | Real estate | 2001 |
| Greto AS | Professional & scientific | 2020 |
| Grettebygd Vannverk SA | Water & waste | 1961 |
| Grid Holding AS | Real estate | 2009 |
| Gritai AS | Information & communication | 2024 |
| Grønne Hjem AS | Real estate | 2025 |
| GS Holmestrand AS | Construction | 2014 |
| GTM Service AS | Construction | 2026 |
| GTR Matter AS | Administrative & support | 2012 |
| Gullhaug Eiendom AS | Real estate | 2005 |
| Gullhaug Holding AS | Construction | 2008 |
| Gullhaug Utbygging AS | Real estate | 2016 |
| Gulv Pro AS | Construction | 2024 |
| Gulvstøper'N AS | Construction | 2007 |
| Gunders AS | Real estate | 2005 |
| Gutu Eiendom AS | Real estate | 2012 |
| Gården Omsorg Ans | Health & social care | 2016 |
| Gårdsoppfinnelser AS | Professional & scientific | 2022 |
| H.S Anlegg AS | Construction | 2008 |
| Hagaskogen Andebu Ans | Agriculture & fishing | 2014 |
| Hagemanns Brygge AS | Real estate | 2011 |
| Hair by Bob AS | Other services | 2021 |
| Hairdocation AS | Education | 2021 |
| Halvorsen El & Eiendom AS | Construction | 2017 |
| Hana Frukt & Grønt AS | Wholesale & retail | 2026 |
| Handling Partner AS | Professional & scientific | 2016 |
| Hansen Og Jørgensen AS | Real estate | 2006 |
| Happy Cheerbows AS | Manufacturing | 2016 |
| Hardys Holmestrand Efts AS | Hospitality | 2020 |
| Haslestad AS | Wholesale & retail | 2020 |
| Haslestad Maskin & Eiendom AS | Construction | 2013 |
| Haslestad Maskin AS | Construction | 2023 |
| Haugos Holding AS | | 2025 |
| Havn Eiendom AS | Real estate | 2025 |
| Havnegrillen Ans | Wholesale & retail | 1999 |
| Heggedal Eiendom AS | Real estate | 2021 |
| Helge S Holmen Holding AS | Transport & logistics | 2010 |
| Helsehub AS | Arts & recreation | 2026 |
| Henriksen Equity AS | | 2025 |
| Hermansen Bygg & Tjenester AS | Construction | 2026 |
| Hewi Elektro AS | Construction | 2000 |
| Hilds AS | Information & communication | 2004 |
| Hillestad Elvetun AS | Real estate | 2017 |
| Hillestad Korn Da | Agriculture & fishing | 2005 |
| Hillestad Landbruksdrift AS | Agriculture & fishing | 2004 |
| Hillestad Torv AS | Wholesale & retail | 1983 |
| Hisj Holding AS | | 2018 |
| HKB60 AS | Professional & scientific | 2023 |
| HL Utleie AS | Administrative & support | 2025 |
| HLH Invest AS | Construction | 2024 |
| Hoc Frisør AS | Other services | 2023 |
| Hof Eiendom AS | Real estate | 2021 |
| Hofslundveien 4 AS | Real estate | 2012 |
| Hogne Holding AS | Real estate | 2022 |
| Holme Engineering AS | Professional & scientific | 2026 |
| Holmen Jord & Maskin AS | Transport & logistics | 2013 |
| Holmen Transport AS | Transport & logistics | 2013 |
| Holmestrand 100 AS | Real estate | 2022 |
| Holmestrand Auto Spa AS | Other services | 2013 |