| Expo AS | Wholesale & retail | 2021 |
| Expotours & Events AS | Administrative & support | 1996 |
| Fabulous AS | Real estate | 2004 |
| Face IT AS | Other services | 1999 |
| Fagerborg Oppussing AS | Construction | 2023 |
| Fast Candy Sandvika AS | Wholesale & retail | 2022 |
| Fayhouse AS | Other services | 2012 |
| FDT Invest AS | Professional & scientific | 2025 |
| Feb Invest AS | Financial services | 2006 |
| Fellini Bar AS | Hospitality | 2015 |
| Feriehuset AS | Real estate | 1995 |
| Fidus Regnskapskontor AS | Professional & scientific | 1965 |
| Figures Øst AS | Professional & scientific | 1998 |
| Film Base AS | Wholesale & retail | 2023 |
| Finn a AS | | 2018 |
| Finstad Invest AS | Professional & scientific | 2003 |
| Finstads Autoco AS | Real estate | 2003 |
| Fitness Sandvika AS | Wholesale & retail | 2023 |
| Fitnessroom Sandvika AS | Arts & recreation | 2010 |
| Flash Studio AS | Professional & scientific | 2007 |
| Flyt Kunnskap AS | Education | 2024 |
| Flytlandskap AS | Professional & scientific | 2022 |
| FN - Renhold AS | Administrative & support | 2020 |
| Fokus Renhold AS | Administrative & support | 1996 |
| Folkebadet AS | Hospitality | 2018 |
| Folkets Hus Sandvika AS | Real estate | 2021 |
| For Men Sandvika AS | Wholesale & retail | 2000 |
| Fornebu Padel AS | Arts & recreation | 2016 |
| Forsikringsassistanse AS | | 2006 |
| Forster Invest AS | | 2021 |
| Fortune Realty AS | Real estate | 2023 |
| Fortune Realty Invest AS | | 2024 |
| Forvaltai AS | Information & communication | 2025 |
| Fossakraft AS | Energy | 2015 |
| Fossumveien 68 AS | Real estate | 2017 |
| Fossveien 11 AS | Real estate | 2024 |
| Fotterapeuten I Sandvika AS | Health & social care | 2006 |
| Four Partners AS | | 2021 |
| Frakteservice AS | Transport & logistics | 2024 |
| Frapont AS | Construction | 2016 |
| Fremme Utvikling AS | Real estate | 2018 |
| Freyjanorge AS | Wholesale & retail | 2018 |
| Frivold Digital AS | Information & communication | 2019 |
| Fuel of Norway AS | Professional & scientific | 2017 |
| Function AS | Wholesale & retail | 1969 |
| Function Group AS | Construction | 2016 |
| Furcula Next AS | | 2022 |
| Gamle Drammensvei 48 AS | Real estate | 2022 |
| Gasolin Bærum AS | Real estate | 2010 |
| Gastro Cure AS | Health & social care | 2023 |
| Gastroconsult AS | Other services | 2015 |
| Gaudernack AS | Wholesale & retail | 1939 |
| GB Bygg Og Service AS | Construction | 2025 |
| GB Byggeservice AS | Construction | 2023 |
| GB Capital AS | Construction | 2025 |
| GCH Eiendom AS | Real estate | 2002 |
| Geir Fossum AS | Transport & logistics | 2015 |
| Genba Invest AS | | 2025 |
| Geovarme AS | Energy | 1997 |
| Ger Invest AS | | 2024 |
| Gimleveien Invest AS | Real estate | 2006 |
| Gjettumkollen Samvirke SA | Households | 1995 |
| Gjønnes Holding AS | Financial services | 2005 |
| Gjønnes Invest AS | Real estate | 2001 |
| GJØS Invest AS | Real estate | 1987 |
| Global Mindz AS | Professional & scientific | 2014 |
| Glove Store AS | Wholesale & retail | 2016 |
| Golf and Leisure Invest AS | Professional & scientific | 2008 |
| Golfide Da | | 1999 |
| Gotex AS | Wholesale & retail | 1924 |
| Gowens Invest AS | Manufacturing | 2019 |
| Granzow AS | Wholesale & retail | 1975 |
| Green Doctors AS | Health & social care | 2015 |
| Greenex AS | Manufacturing | 2022 |
| Greenex Da | Manufacturing | 2016 |
| Grønlandsveien SA | Real estate | 1962 |
| Grønnsakhagen AS | Wholesale & retail | 1997 |
| GS Arkitekter AS | Professional & scientific | 2015 |
| Gullstjerne AS | Construction | 2019 |
| Gulsrud Sandvika Storsenter AS | Wholesale & retail | 1993 |
| Guy's Frisør AS | Other services | 2016 |
| Gyldenløve Eiendom AS | Real estate | 1995 |
| H. Lundbeck AS | Wholesale & retail | 1948 |
| H1001 Holding AS | Health & social care | 2025 |
| Habe AS | | 2005 |
| Haha Consulting AS | Professional & scientific | 2020 |
| Hai Interaktiv AS | Professional & scientific | 1997 |
| Hair Club Sandvika AS | Other services | 2019 |
| Halk Invest AS | Financial services | 2008 |
| Halo Holding AS | Financial services | 2010 |
| Hamang AS | Real estate | 2018 |
| Hamang Eiendom AS | Real estate | 2006 |
| Hamang Kontorsenter AS | Real estate | 2019 |
| Hamang Næringssenter AS | Real estate | 2016 |
| Hamang Terrasse 61 AS | Real estate | 1998 |
| Hamang Tomtebank AS | Real estate | 2013 |
| Hamar Hudlegekontoret AS | Health & social care | 2018 |
| Hamed Go EASY24/7 AS | Transport & logistics | 2023 |
| Hannevig Consulting AS | Professional & scientific | 2021 |
| Hansaworld Norway AS | Information & communication | 1993 |