| Enva Northern Ireland Limited | Water & waste | 1984 |
| Envy Interiors Limited | Manufacturing | 2023 |
| Epic Golf Ireland Limited | Wholesale & retail | 2002 |
| EPP Belfast Ltd | Real estate | 2019 |
| Equine Design Limited | Professional & scientific | 2021 |
| Erth Engineering Limited | Manufacturing | 2017 |
| Espirito Productions Ltd | Information & communication | 2011 |
| Ethan Community Ltd | Health & social care | 2025 |
| Ethden Marine Limited | Transport & logistics | 2018 |
| Euro Subframes Ltd | Wholesale & retail | 2024 |
| EVE B Ltd | Real estate | 2020 |
| Expressni Limited | Wholesale & retail | 2025 |
| F G Hoof Trimming Limited | Agriculture & fishing | 2026 |
| F&G Property Rentals Ltd | Real estate | 2024 |
| Fairway & Footpath Apartments Ltd | Households | 2025 |
| Farra Marine UK Ltd | Transport & logistics | 2021 |
| FAY Planning Consultancy Ltd | Professional & scientific | 2024 |
| Federation of Family Practices Down C.I.C. | Health & social care | 2014 |
| Felix N.I. Ltd | Professional & scientific | 2010 |
| Fibonacci Magnetic Technologies Ltd | Manufacturing | 2020 |
| Financial Foresight (NI) Limited | Financial services | 2005 |
| Financial Foresight Limited | Extraterritorial | 2006 |
| Finnebrogue Farm Limited | Construction | 2004 |
| Finnebrogue Vegetarian Company Limited | Manufacturing | 2019 |
| Fire Protection & Safety Limited | Professional & scientific | 2022 |
| Flanagan Contracts Limited | Administrative & support | 2024 |
| Flowcbd Ltd | Wholesale & retail | 2019 |
| Flying Fields Farm CIC | Education | 2025 |
| Flynn Mechanical Services Ltd | Construction | 2015 |
| Foci Coffee Ltd | Hospitality | 2018 |
| Focused Hub Ltd | Energy | 2017 |
| Football SX Ltd | Arts & recreation | 2023 |
| FOR Old Times Sake Limited | Wholesale & retail | 2023 |
| Forage (2026) Ltd | Hospitality | 2025 |
| Forge Property Limited | Households | 2025 |
| Forrestside Trading Ltd | Wholesale & retail | 2024 |
| Fortior Insight Ltd | Professional & scientific | 2018 |
| Fortuna Europe Ltd | Wholesale & retail | 2014 |
| Fostermans Ltd | Education | 2022 |
| Four Corner Fitness Ltd | Arts & recreation | 2025 |
| FOX Auto Spares Ltd | Wholesale & retail | 2008 |
| Fpmh Investments Ltd | Real estate | 2017 |
| Framed Productions Limited | Information & communication | 2012 |
| Francis Meaney Limited | Professional & scientific | 2026 |
| Frank Mcleigh & Sons Limited | Construction | 1991 |
| Frazers Holdings Ltd | Financial services | 2019 |
| G Design Engineering NI Limited | Professional & scientific | 2019 |
| G Kelly Joinery Ltd | Construction | 2016 |
| G Macauley Plastering Ltd | Construction | 2025 |
| G&N Bricklaying Ltd | Construction | 2015 |
| G-Rake Limited | Manufacturing | 2023 |
| G.Flynn Properties Ltd | Households | 2013 |
| G10 Engineering NI Ltd | Manufacturing | 2022 |
| Gaelicgirl Ltd | Wholesale & retail | 2016 |
| Galactic Grimoire Publishling Ltd | Information & communication | 2024 |
| Galloway Steel Fabrications Limited | Manufacturing | 2020 |
| Gary Byrne Limited | Other services | 2019 |
| Gary Lennon Systems Limited | Professional & scientific | 2022 |
| GB Poultry Limited | Manufacturing | 2007 |
| GB Premier Poultry Ltd | Manufacturing | 2026 |
| General Consumer Products Limited | Health & social care | 2025 |
| Genuine Direct Limited | Wholesale & retail | 2017 |
| Genuine Parts UK (NI) Limited | Wholesale & retail | 2018 |
| Georgine Crothers Hair Graduates Ltd | Other services | 2015 |
| Geotec Surveys (UK) Limited | Extraterritorial | 2008 |
| GET Fude Ltd | Information & communication | 2022 |
| Gfabs UK and Ireland Ltd | Wholesale & retail | 2021 |
| GGI Worldwide Management Ltd Limited | Manufacturing | 2014 |
| Glasswater Farms Limited | Agriculture & fishing | 2025 |
| Glider Industries Ltd | Manufacturing | 2021 |
| Glnb Holdings Ltd | Financial services | 2025 |
| Glnb Properties Ltd | Real estate | 2026 |
| Glovet Management Ltd | Households | 2025 |
| GMK Plastering Services Limited | Construction | 2023 |
| Gmts Group Limited | Transport & logistics | 2019 |
| Gmts Ltd | Transport & logistics | 2019 |
| Go CGC Property Ltd | Real estate | 2024 |
| GOH Joinery Limited | Manufacturing | 2025 |
| Golden Dragon Downpatrick Ltd | Hospitality | 2022 |
| Good Times Online Ltd | Wholesale & retail | 2025 |
| Gortin Properties Limited | Real estate | 2025 |
| GP Heating & GAS Services Limited | Construction | 2023 |
| GR Vehicle Services Ltd | Wholesale & retail | 2024 |
| Grab IT Waste Ltd | Water & waste | 2024 |
| Graham-Hill Property Management Ltd | Real estate | 2017 |
| Grahams-Dundrum Ltd | Wholesale & retail | 2004 |
| Grangewalls Ltd | Construction | 2021 |
| Grant Bros Developments Ltd | Construction | 2014 |
| Grassy Knoll Pictures Ltd | Information & communication | 2018 |
| Green Isle Ventures Ltd | Construction | 2015 |
| Green Ladies N.I Ltd | Manufacturing | 2018 |
| GSC Ecom Limited | Wholesale & retail | 2025 |
| Gsni Properties Limited | Real estate | 2024 |
| Guru Pizza Ltd | Wholesale & retail | 2021 |
| GUS Properties Limited | Construction | 2015 |
| H4 Advisory Ltd | Professional & scientific | 2026 |
| Hall Property Projects Limited | Households | 2022 |
| Hamill & Rocket Limited | Information & communication | 2007 |
| Hamill's Saul Limited | Wholesale & retail | 2017 |
| Hanna & Smyth Contracts Ltd | Construction | 2015 |