| E Mcgregor Consulting Ltd | Information & communication | 2011 |
| Eastlower Properties Limited | Real estate | 2007 |
| EKC Medical Ltd | Health & social care | 2018 |
| EKO Marketing Ltd | Professional & scientific | 2026 |
| Enfield Street Services Ltd | Extraterritorial | 2007 |
| ERA92 Elevate | Administrative & support | 2022 |
| ERA92 Ltd | Manufacturing | 2019 |
| F & D Management Company Limited | Extraterritorial | 2001 |
| Faculty Global Ltd | Information & communication | 2021 |
| Fletcher Tweed Commercials Limited | Real estate | 2011 |
| Flowerfield Court (Portstewart) Management Company Limited | Extraterritorial | 2006 |
| Fortview Management Limited | Extraterritorial | 1991 |
| Foyle Leisure Limited | Professional & scientific | 2023 |
| Funhouse Toys Ltd | Wholesale & retail | 2026 |
| FWM Consultants Limited | Professional & scientific | 2020 |
| Galvally Developments Limited | Construction | 2016 |
| Gareth Mclearnon Flute Ltd | Professional & scientific | 2022 |
| Gateside Management Company Limited | Extraterritorial | 2006 |
| GGS Technology Ltd | Professional & scientific | 2025 |
| Giant Homes Causeway Coast Ltd | Hospitality | 2023 |
| Gillian Higgins Photography Ltd | Professional & scientific | 2015 |
| Glendoyle Management Company Ltd | Administrative & support | 2010 |
| Glenvale Management Company Portrush Limited | Real estate | 2008 |
| Golfpal Ltd | Arts & recreation | 2025 |
| Gordonville Services Limited | Extraterritorial | 1987 |
| Great Sea Books Ltd | Information & communication | 2022 |
| Gribben Properties Limited | Real estate | 2014 |
| H Mullan and Sons Limited | Construction | 2013 |
| Hallview Property Management Company Limited | Extraterritorial | 2005 |
| Harbour Place Management Company Limited | Other services | 2016 |
| Harryville Holdings Ltd | Wholesale & retail | 2021 |
| Havenside Management Services Limited | Households | 2024 |
| Heathmount Residents Limited | Households | 1992 |
| High Clere Apartments Management Company Limited | Households | 2016 |
| Hillhead Investments (NI) Ltd | Hospitality | 2013 |
| Hilltop Property & Investments (NI) Limited | Real estate | 2014 |
| Homeglow Plumbing and Heating Limited | Construction | 2019 |
| Hopefield Village Management Services Co. Ltd. | Extraterritorial | 2003 |
| Hughes Galleries Ltd | Wholesale & retail | 2003 |
| Ice House Bar Ltd | Hospitality | 2021 |
| Impact Zion Ltd | Wholesale & retail | 2018 |
| Inishkill Construction Limited | Financial services | 2025 |
| Inishowen View Management Limited | Extraterritorial | 2015 |
| Ironstone Construction Limited | Hospitality | 1984 |
| Irsina Holding Company Limited | Financial services | 2025 |
| Islay Property Limited | Real estate | 2016 |
| Islay View Management Company Limited | Real estate | 2010 |
| JF Travel (Magherafelt) Ltd | Administrative & support | 2023 |
| JF Travel Ltd | Administrative & support | 2016 |
| Jhbc Global Limited | Wholesale & retail | 2020 |
| JT Sea Technology Limited | Professional & scientific | 2014 |
| Jura View Management Company Limited | Extraterritorial | 2007 |
| Kaba Services Ltd | Wholesale & retail | 2018 |
| Kantara Hayesbank Services Ltd | Extraterritorial | 2005 |
| Katie Roughan Marketing Consulting Ltd | Professional & scientific | 2026 |
| Kerr Commercial Properties Ltd | Construction | 2024 |
| Kill-Devil Spirits Co. Ltd | Manufacturing | 2024 |
| Kingdom Football Management Limited | Arts & recreation | 2016 |
| Knock Road Management Company Limited | Extraterritorial | 2005 |
| Knockantern Services Ltd | Extraterritorial | 2005 |
| Knockbracken Drive Estate Management Company Limited | Households | 2009 |
| Knockmore Management Company Limited | Extraterritorial | 2006 |
| Ksor Limited | Real estate | 2015 |
| Kyso Sound Limited | Information & communication | 2020 |
| Landsdowne Manor Apartments Limited | Extraterritorial | 1990 |
| Links (Portstewart) Management Company Limited - the | Extraterritorial | 1996 |
| Links Management Services (NO.2) Limited-The | Extraterritorial | 1996 |
| Lisderg Holdings Ltd | Hospitality | 2021 |
| Lislea Services Limited | Extraterritorial | 1989 |
| Lisnabrack Management Limited | Households | 2002 |
| Livesoft Limited | Information & communication | 2016 |
| LJM Retail Ltd | Real estate | 2020 |
| Lost and Found Coffee Limited | Hospitality | 2013 |
| LPG Property Management Ltd | Real estate | 2012 |
| LYK Yersaceldn Ltd | Wholesale & retail | 2025 |
| Lynchpin (Ireland) Ltd | Administrative & support | 1997 |
| Lynchpin Tours Limited | Administrative & support | 2026 |
| Macauley Associates Network Limited | Health & social care | 2008 |
| MAK Design (N.I.) Limited | Manufacturing | 2012 |
| Malone Smile Design Limited | Manufacturing | 2022 |
| Manor Court Coleraine Management Limited | Extraterritorial | 2001 |
| Marathon Management Services Limited | Households | 2004 |
| Marinola Limited | Wholesale & retail | 2022 |
| Market Court Management Services Limited | Extraterritorial | 1997 |
| Marshalls of Sion, Limited | Hospitality | 1945 |
| Martello Park Services Ltd | Extraterritorial | 2004 |
| MC Cormick Properties Ltd | Real estate | 2023 |
| Mcchesney Associates Ltd | Information & communication | 2011 |
| Mcclure Plumbing Ltd | Construction | 2025 |
| Mccormack Brae Management Company Limited | Extraterritorial | 2010 |
| Mccotter & Co Ltd | Professional & scientific | 2006 |
| Mccurdy Structural Design Ltd | Professional & scientific | 2023 |
| ME & MRS Jones (Portstewart) Limited | Hospitality | 2017 |
| Meadowlands (Portstewart) Management Limited | Extraterritorial | 1999 |
| Meadowmews Developments Limited | Real estate | 2007 |
| Mid-Antrim Marquees Limited | Other services | 1997 |
| Mill Farm Management Limited | Extraterritorial | 2007 |
| Millbank Avenue (Portstewart) Services Limited | Extraterritorial | 1991 |
| Millfield Apartments Portstewart Limited | Extraterritorial | 2000 |
| Millionhairz Ltd | Other services | 2011 |