| GCM Property Investments Limited | Real estate | 2018 |
| Glendergen Properties & Farms Ltd | Agriculture & fishing | 2014 |
| Global Fuels Castlederg Limited | Administrative & support | 2017 |
| Global OIL Castlederg Limited | Wholesale & retail | 2020 |
| Global Plant Ltd | Administrative & support | 2018 |
| GMC Motors Ltd | Wholesale & retail | 2018 |
| GNM Group Holdings Limited | Financial services | 2024 |
| Great Northern Manufacturing Ltd | Manufacturing | 2015 |
| Grove Dairy Ltd | Manufacturing | 2016 |
| Grove Dairy Renewables Ltd | Energy | 2024 |
| Grove Quality Pork Ltd | Agriculture & fishing | 2018 |
| Guerilla Garden Ltd | Wholesale & retail | 2020 |
| Hans Furniture Agencies Ltd | Wholesale & retail | 2015 |
| Harper Agri Ltd | Wholesale & retail | 2026 |
| Harpur Bros Ltd | Wholesale & retail | 2017 |
| Harpur Contracts Ltd | Professional & scientific | 2023 |
| Harpur Properties Limited | Real estate | 2025 |
| Heavy Logistics Ltd | Transport & logistics | 2018 |
| Henderson Hogs Limited | Agriculture & fishing | 2011 |
| HI Flying COW Ltd | Hospitality | 2019 |
| Hillside Combined Renewable Systems Ltd | Manufacturing | 2011 |
| Hillview Design & Management Associates Ltd | Construction | 2024 |
| Hunter Electrics Limited | Construction | 2002 |
| Impact Repairs Auto Refinshing Ltd | Manufacturing | 2022 |
| J & L Construction & Civils Ltd | Construction | 2024 |
| Jacc Agencies Ltd | Administrative & support | 2015 |
| John Hunter Limited | Agriculture & fishing | 2003 |
| Jonathan Baxter English Ltd | Education | 2024 |
| JR & GI Young Ltd | Agriculture & fishing | 2014 |
| Keale Bridge Civils & Engineering Ltd | Construction | 2024 |
| Keenan Kitchens Limited | Construction | 2016 |
| Kemc Ltd | Construction | 2019 |
| Killen District Development Limited | Other services | 1996 |
| Killeter & District Development Trust | Other services | 1999 |
| Killeter Custom Sheds Ltd | Manufacturing | 2024 |
| KM Electrical & Renewables Ltd | Construction | 2023 |
| KR Muldoon Contracts Ltd | Construction | 2021 |
| KW Haulage Services Ltd | Transport & logistics | 2023 |
| KW Sales & Hire Ltd | Construction | 2023 |
| Land & Energy Ltd | Professional & scientific | 2026 |
| Lindoc Limited | Hospitality | 2005 |
| Lisard Renewables Ltd | Energy | 2011 |
| Listymore Construction Limited | Construction | 2024 |
| Logue Transport Ltd | Transport & logistics | 2018 |
| Lowry Building & Civil Engineering Ltd | Construction | 2011 |
| Lowry Construction Ltd | Construction | 2011 |
| Lowry M & E Ltd | Construction | 2024 |
| Lynch Coach Hire Limited | Transport & logistics | 2017 |
| Lynch TAR Ltd | Construction | 2016 |
| M J BUS Hire Ltd | Transport & logistics | 2024 |
| MAC Brickwork Contracts Limited | Construction | 2022 |
| MAD About Crushers Ltd | Financial services | 2019 |
| Marthurs Ltd | Hospitality | 2026 |
| Martin Boyle Haulage Limited | Administrative & support | 2021 |
| Martin Mcgrath Contracts Ltd | Construction | 2017 |
| Maxwell Concrete Limited | Manufacturing | 2019 |
| MCD Plant Hire Ltd | Administrative & support | 2023 |
| Mcgowan Trading Limited | Wholesale & retail | 2026 |
| Mchugh Bros Builders Ltd | Construction | 2011 |
| Mckane Agri Sales Ltd | Wholesale & retail | 2022 |
| Mckelvey Asbestos Removal Limited | Construction | 2002 |
| Mckelvey Construction Limited | Construction | 2001 |
| Mckelvey Holdings Limited | Construction | 2023 |
| Mcmenamin Contracts Ltd | Construction | 2024 |
| Mcnulty Decorators Ltd | Construction | 2013 |
| Mcsorley Brothers Ltd | Agriculture & fishing | 2017 |
| Meehan International Ltd | Transport & logistics | 2020 |
| Meehan Intrnational Transport Limited | Transport & logistics | 2018 |
| MGH Farms Ltd | Agriculture & fishing | 2025 |
| MGM Commercials & Equestrian Limited | Manufacturing | 2013 |
| Moneygal Construction Ltd | Construction | 2013 |
| Monganbay Ltd | Hospitality | 2013 |
| Multi - Trail Ltd | Manufacturing | 2013 |
| Nepafield (NI) Limited | Real estate | 2001 |
| New AGE Engineering NI Ltd | Professional & scientific | 2021 |
| NI Fuels Limited | Wholesale & retail | 2013 |
| Nordmann Holdings Ltd | Financial services | 2022 |
| Nordmann Limited | Manufacturing | 2017 |
| North West Wind Limited | Energy | 2012 |
| Northern Contracts Limited | Construction | 2019 |
| Northern Crusher Spares Ltd | Manufacturing | 2010 |
| Ntelligensia Ltd | Information & communication | 2024 |
| NWW Killy BEG East Limited | Extraterritorial | 2014 |
| NWW Tullynadall West Limited | Energy | 2014 |
| O'Neill Contracts & Plant Hire Ltd | Construction | 2017 |
| Oakdene Biogas Ltd | Energy | 2011 |
| Odbc Ltd | Real estate | 2012 |
| P & a Contracts Ltd | Construction | 2004 |
| P Doherty Fuel Oils Ltd | Wholesale & retail | 2019 |
| P Mcsorley & Sons Ltd | Manufacturing | 2011 |
| Pgcd Limited | Hospitality | 2015 |
| Pledge Multi Services Ltd | Construction | 2014 |
| Power Management IT Ltd | Information & communication | 2020 |
| Pro Safety Solutions Ltd | Real estate | 2024 |
| Pyrotechnicsni Ltd | Arts & recreation | 2025 |
| Quinn Bros Contracts Ltd | Construction | 2022 |
| Quinn's Property Ltd | Real estate | 2024 |
| R and S Daycare Ltd | Health & social care | 2025 |
| R Crawford Construction Ltd | Construction | 2025 |
| R S Farms Ltd | Agriculture & fishing | 2016 |