| EPE (N.I.) Ltd | Construction | 2024 |
| Epic Productions Ltd | Extraterritorial | 2020 |
| EPS Plant & Safety Ltd | Construction | 2010 |
| Equality Period Limited | Health & social care | 2021 |
| Equipe Holdings Limited | Financial services | 2018 |
| Equipe Ireland Limited | Manufacturing | 2008 |
| Equipe Mouldings Limited | Manufacturing | 2008 |
| Erskine Morris Haulage Limited | Transport & logistics | 2014 |
| Escape Nine Games Ltd | Information & communication | 2022 |
| Eskimo United Ltd | Professional & scientific | 2014 |
| Euro Hand Car Wash and Valeting Centre Ltd | Other services | 2018 |
| Evelune Diamonds Ltd | Wholesale & retail | 2026 |
| Everest Hospitality Limited | Hospitality | 2025 |
| EW Ramsey & SON Ltd | Other services | 2003 |
| Excel Vape Limited | Wholesale & retail | 2020 |
| Exchange Road Properties Limited | Households | 1995 |
| Fabulous Futures Limited | Health & social care | 2015 |
| Falconer Stewart Accountants Ltd | Professional & scientific | 2017 |
| Falconer Stewart Ltd | Professional & scientific | 2021 |
| FBW Properties Ltd | Real estate | 2025 |
| Feda Investments Ltd | Arts & recreation | 2020 |
| Fenix Forensic Psychology Ltd | Health & social care | 2018 |
| FH Consultancy Services Ltd | Real estate | 2009 |
| Fhft Limited | Wholesale & retail | 2019 |
| FIGHT2THRIVE CIC | Arts & recreation | 2023 |
| First AID in Training Ltd | Education | 2020 |
| FIX IT + Ltd | Information & communication | 2026 |
| Fizzy Lemon Ltd | Other services | 2021 |
| FKE Ltd | Manufacturing | 2022 |
| Flaire & Co Hair Ltd | Other services | 2025 |
| Flax Antrim Ltd | Hospitality | 2026 |
| Flax Catering Ltd | Hospitality | 2026 |
| Flax Coffee Co Ltd | Hospitality | 2024 |
| Flax Loft Ltd | Other services | 2025 |
| Flax Portstewart Ltd | Wholesale & retail | 2025 |
| Flax Steak House Ltd | Hospitality | 2023 |
| Floor DOT Style Ltd | Wholesale & retail | 2023 |
| Floorkraft Ltd | Construction | 2018 |
| Flux Energy Ltd | Professional & scientific | 2014 |
| Fone Jacker NI Ltd | Information & communication | 2012 |
| Fortitude-Grp Ltd | Professional & scientific | 2020 |
| Frank Beattie & Co Ltd | Professional & scientific | 2019 |
| Frcto Ltd | Information & communication | 2025 |
| Freight Direct (Ireland) Ltd | Transport & logistics | 2013 |
| G Grace Roofing Ltd | Construction | 2017 |
| G M Property Maintenance Limited | Construction | 2026 |
| Gangnam Takeaway Limited | Hospitality | 2022 |
| Gareth Hunter Ltd | Transport & logistics | 2019 |
| Gary Ross Transport Ltd | Transport & logistics | 2018 |
| GAS Plumbing & Mechanical Services Ltd | Manufacturing | 2016 |
| Gatto's Ristorante Ltd | Hospitality | 2017 |
| GCW (N.I.) Ltd | Wholesale & retail | 2024 |
| Gems Bullion Ltd | Wholesale & retail | 2026 |
| Geological Data Solutions Ltd | Mining & quarrying | 2025 |
| George Kennedy Ltd | Construction | 2002 |
| Geox Engineering Ltd | Professional & scientific | 2020 |
| GG Electrical Contractors Ltd | Energy | 2013 |
| Gigha Enterprises Limited | Wholesale & retail | 2018 |
| Gilpin Automotive Ltd | Wholesale & retail | 2015 |
| GJM Consultancy Services Ltd | Manufacturing | 2018 |
| GL Reflections Ltd | Administrative & support | 2022 |
| Glasker Management Company Limited | Households | 2014 |
| GLO Ballycastle Ltd | Other services | 2026 |
| GLO Carrick Ltd | Other services | 2026 |
| GLO Coleraine Ltd | Other services | 2026 |
| GLO Larne Ltd | Other services | 2026 |
| GLO Stranmillis Ltd | Other services | 2026 |
| Glowvibe Studios Limited | Other services | 2026 |
| Glynn Motor Company Ltd | Wholesale & retail | 2015 |
| GM QMS Ltd | Manufacturing | 2025 |
| Gola Rock Enterprises Limited | Administrative & support | 2015 |
| Gola Rock Investments Ltd | Extraterritorial | 2020 |
| Gola Rock Limited | Extraterritorial | 2015 |
| Gola Rock Services Ltd | Administrative & support | 2018 |
| Golden Gloves Boxing Ltd | Wholesale & retail | 2025 |
| Golden Well Larne Ltd | Hospitality | 2024 |
| Gorumna Services Ltd | Extraterritorial | 2020 |
| GRADUS1 Ltd | Professional & scientific | 2026 |
| Green Catering Ltd | Hospitality | 2012 |
| Green Clean Fuel Ltd | Manufacturing | 2020 |
| Green Fingers Family Limited | Manufacturing | 2020 |
| Green Roofs Ireland Ltd | Agriculture & fishing | 2010 |
| Greenane Enterprises Limited | Hospitality | 2015 |
| Greydog Psychology Ltd | Health & social care | 2018 |
| GSB Agencies Limited | Agriculture & fishing | 2013 |
| GU Takeaway Ltd | Hospitality | 2021 |
| GW Aero Ltd | Manufacturing | 2018 |
| H&H Garden Maintenance NI Ltd | Administrative & support | 2022 |
| Hagan-Rea Ltd | Real estate | 2024 |
| Hair on the Hill Ltd | Other services | 2017 |
| Hamptons Healthcare Limited | Administrative & support | 2022 |
| Hanmar Properties Ltd | Real estate | 2025 |
| Hanmar Site Investigation Services Limited | Construction | 2013 |
| Hansard Associates Ltd | Professional & scientific | 2003 |
| Harbour Motors Ltd | Wholesale & retail | 2018 |
| Harbrook Property Developments Ltd | Households | 2000 |
| HARDCORE20ENG Ltd | Professional & scientific | 2026 |
| Harvey & Co Accountancy Services Limited | Professional & scientific | 2006 |
| Haze @ NO.10 Ltd | Other services | 2017 |
| HELIX8 Ltd | Information & communication | 2019 |