| Bøndenes Hus Askim AS | Real estate | 1991 |
| Børje Hermansson Grav AB | Construction | 1998 |
| Børsemaker Tor Solberg AS | Manufacturing | 2021 |
| Cae Invest AS | | 2023 |
| Cafe Johanna Ans R Flugeim Aa Starheim | Hospitality | 1992 |
| Café Sammen AS | Hospitality | 2022 |
| Campino Askim AS | Hospitality | 2016 |
| Carl-Marcus Høntorp AS | | 2024 |
| Caroid AS | Wholesale & retail | 2018 |
| Caselle AS | | 2021 |
| Casi Finans AS | Real estate | 2007 |
| CFJ Eiendom AS | Real estate | 2023 |
| Chrag AS | Construction | 2021 |
| Christfam AB Nuf | Construction | 2003 |
| Christina Sandberg AS | Wholesale & retail | 2020 |
| Circius Pharma AS | Wholesale & retail | 2021 |
| Cisco AS | Other services | 2022 |
| City Fresh AS | Wholesale & retail | 2025 |
| City Grill & Utleie AS | Hospitality | 2025 |
| Climatech AS | Construction | 2013 |
| Coach Holding AS | Professional & scientific | 2025 |
| Connexus AS | Transport & logistics | 2024 |
| Conture Liner Da | Other services | 2000 |
| Coord AS | Information & communication | 2024 |
| Cornerstone AS | Professional & scientific | 2005 |
| Cornerstone Ask AS | Real estate | 2022 |
| Cramers AS | | 2022 |
| Crassula AS | | 2024 |
| Creactivity AS | | 2024 |
| Creative Foto AS | Professional & scientific | 2023 |
| Cristin Trafikkskole AS | Education | 2018 |
| Curat AS | Professional & scientific | 2026 |
| CVS Holding AS | | 2020 |
| D Eriksen Invest AS | Real estate | 2009 |
| Daka Holding AS | | 2022 |
| Dalsgren AS | Professional & scientific | 2017 |
| Damperiet Import AS | Wholesale & retail | 2017 |
| Dato AS | Professional & scientific | 2021 |
| Dato Utleie AS | Administrative & support | 2021 |
| Datoinvest AS | Real estate | 2005 |
| Dealbuilder AS | Information & communication | 2020 |
| Dealbuilder Holding AS | Information & communication | 2020 |
| Decorama Tekstilagentur & Decor Ans | Wholesale & retail | 1993 |
| Deja-Vu Norway SA | Arts & recreation | 2020 |
| Dekk Sjekk AS | Other services | 2002 |
| Delta Jobb Og Kompetanse AS | Health & social care | 2017 |
| Delta Kommunale Tjenester AS | Education | 2017 |
| Delta Næring AS | Health & social care | 2017 |
| Deltagruppen AS | Health & social care | 2017 |
| Det Glade Hjørnet AS | Wholesale & retail | 2009 |
| Det Nye Torvkjøkkenet Ans | Hospitality | 1996 |
| Devilry Production AS | Information & communication | 2019 |
| DH Last AS | Transport & logistics | 2020 |
| Digital Assist AS | Information & communication | 2022 |
| Digital Coach Hub AS | Professional & scientific | 2025 |
| Digital Sikkerhet AS | Information & communication | 2012 |
| Din Kro Ans | | 1994 |
| Din Salong Askim AS | Other services | 2021 |
| Dingstad-Eriksen Holding AS | Professional & scientific | 2014 |
| DM Accounting AS | Professional & scientific | 2023 |
| Dollhouse Beauty Studio AS | Other services | 2026 |
| Domus Genero AS | Real estate | 2007 |
| DR Randersgate Legesenter Da | Health & social care | 2025 |
| DR. Randers Gate 3 AS | Real estate | 2006 |
| DR. Randers Gate Eiendom AS | Real estate | 2012 |
| DS Investments AS | Wholesale & retail | 2024 |
| Dybedal AS | Real estate | 1997 |
| Dynatec AS | Wholesale & retail | 2010 |
| Dynatec Engineering AS | Professional & scientific | 1917 |
| Dynatec Group AS | Wholesale & retail | 1987 |
| Dyrebar Recovery AS | Other services | 2021 |
| Döner Kebab Takeaway AS | Hospitality | 2025 |
| Ecofrakt AS | Information & communication | 2025 |
| Ee 1820 Invest Group AS | Wholesale & retail | 2023 |
| Eidsbergveien 10 AS | Real estate | 2022 |
| Eiebakke AS | Wholesale & retail | 2005 |
| Eiendommen Frostad Ruud Johansen Og Bratlie Ans | Real estate | 1990 |
| Eiendomstjenester AS | Real estate | 2007 |
| Eik Haar AS | Other services | 2022 |
| Eika Økonomi Askim AS | Professional & scientific | 2014 |
| Eika Økonomi Øst AS | Professional & scientific | 2024 |
| Eilers Invest AS | | 2023 |
| Einar Jin Apalnes Drift AS | Construction | 2023 |
| Einar Jin Apalnes Holding AS | Construction | 2023 |
| Eiro Eiendom AS | Real estate | 2017 |
| Ejendals AB | Wholesale & retail | 2004 |
| Ejendals AS | Wholesale & retail | 2014 |
| Eks Design AS | Arts & recreation | 2003 |
| Ekspert Snekker AS | Construction | 2020 |
| El Ghazi Transport AS | Transport & logistics | 2026 |
| Electro Drives AS | Wholesale & retail | 1996 |
| Elektro Fokus AS | Construction | 2014 |
| Elektrotjenesten AS | Construction | 2016 |
| Elektrotjenesten Invest AS | Real estate | 2019 |
| Elkontakt I Karlstad AS | Construction | 2022 |
| Empet Askim Dyreklinikk AS | Professional & scientific | 2014 |
| Empowerment Holding AS | Professional & scientific | 2024 |
| Enerveien Garasjelag SA | Real estate | 2020 |
| Engelhardt AS | Real estate | 2015 |
| Engelsviken Hus AS | Real estate | 2018 |