| Aasbø Media AS | Professional & scientific | 2024 |
| Agder Utvikling 1 AS | Real estate | 2017 |
| Agder Utvikling AS | Real estate | 2014 |
| Animato AS | Arts & recreation | 2022 |
| Ausland-Krokenveien SA | Real estate | 2006 |
| Bartolo Holding AS | | 2019 |
| Bjørn Ivar Dalen Holding AS | Financial services | 2005 |
| Bjørn Mykland AS | Construction | 2013 |
| Bonzo Estates AS | Real estate | 2023 |
| Bonzo Holding AS | Real estate | 2017 |
| Brødrene Felle AS | Agriculture & fishing | 2026 |
| Citatus Curatio AS | Real estate | 2020 |
| Digerdal Og Fisketjernveien SA | Real estate | 1970 |
| Drivhus Norway AS | Professional & scientific | 2025 |
| Egddalen Motorverksted AS | Manufacturing | 2019 |
| Eskeland-Ausland Grunneierlag Samvirkeforetak | Agriculture & fishing | 2024 |
| Espen Westøl AS | Financial services | 2005 |
| Flåt Transport AS | Transport & logistics | 2019 |
| Fone AS | Construction | 2026 |
| Fysioterapaut Magnhild Aasbø Lystad AS | Health & social care | 2019 |
| Gjerstad Bilverksted AS | Other services | 2016 |
| Gjerstad Driftslag Da | Agriculture & fishing | 1989 |
| Gjerstad Hyttetjenester Da | Administrative & support | 2024 |
| Gjerstad Il Løypelag AS | Arts & recreation | 2021 |
| Gjerstad Trevare AS | Manufacturing | 2005 |
| Gjetmundsen Holding AS | | 2018 |
| GM Eiendom Og Utleie AS | Construction | 2022 |
| Granturismo AS | Professional & scientific | 2012 |
| Grasåsen Vegforening | Real estate | 1995 |
| Haugebo Maskin AS | Construction | 2019 |
| Hegland & Sandåker Eiendom AS | Real estate | 2022 |
| Heiland AS | Administrative & support | 2007 |
| Helge Og Johan Brasøy Ans | Construction | 1991 |
| Hobbydrivhus AS | Wholesale & retail | 2007 |
| Ina Haugholt Invest AS | Real estate | 2021 |
| Kilbuveien Samvirkeforetak | Real estate | 1989 |
| Kleivvannsveien SA | Real estate | 1986 |
| Klister AS | Manufacturing | 2024 |
| Lars Mesel AS | Wholesale & retail | 2005 |
| Lines Lashes AS | Other services | 2026 |
| Ludvigsen Interiør - AS | Construction | 2023 |
| Lyngstølveien | Real estate | 1995 |
| Mykland Maskin AS | Construction | 1999 |
| Oz Holding AS | Information & communication | 2017 |
| Petersen Bygg & Betong AS | Construction | 2019 |
| Qmatec Group AS | Professional & scientific | 2010 |
| Qmatec Holding AS | Manufacturing | 2010 |
| Sandåker Holding AS | Real estate | 2014 |
| Sandåker Service AS | Construction | 2024 |
| Sant Care AS | Health & social care | 2026 |
| Simech AS | Other services | 2024 |
| Ssi Eiendom AS | Real estate | 2015 |
| The King's Mansion AS | Arts & recreation | 2020 |
| Titas Mat AS | Manufacturing | 2018 |
| Total Formidling AS | Real estate | 2016 |
| Trading Company Xtreme AS | Professional & scientific | 2021 |
| Trehyttene Gjerstad AS | Real estate | 2024 |
| Trydal AS | Real estate | 2022 |
| Trydal Maskin AS | Construction | 2003 |
| Ulltveit, Der Borte Da | Agriculture & fishing | 2022 |
| Van Kaam Handel AS | Wholesale & retail | 2014 |
| Vitalis Helse AS | Health & social care | 2016 |
| Vitalis Helse Kragerø AS | Health & social care | 2016 |
| Øvre Gjerstad Samdrift Da | Agriculture & fishing | 2022 |