| Evolve Equity Partners Ltd | Professional & scientific | 2024 |
| Evolve Women C.I.C. | Education | 2019 |
| Explore Consulting Group Limited | Professional & scientific | 2021 |
| Express Catering Group Ltd | Hospitality | 2022 |
| Eyre Technology Ltd | Information & communication | 2025 |
| Ezai Ltd | Professional & scientific | 2023 |
| F Donnelly Contracts Limited | Construction | 2016 |
| Fable Creative Studio Ltd | Professional & scientific | 2026 |
| Fabraco Limited | Manufacturing | 2018 |
| Factory 61 Ltd | Information & communication | 2022 |
| Fairlawns Care Home Services Ltd | Health & social care | 2023 |
| Fams Ó'D Ltd | Real estate | 2022 |
| Fancy Working Here Ltd | Information & communication | 2024 |
| Fangwei TU Ltd | Wholesale & retail | 2025 |
| Farlstone Castleblayney Road Ltd | Construction | 2023 |
| Farlstone Construction Ltd | Construction | 2017 |
| Farlstone Developments (Dunmurry) Ltd | Construction | 2019 |
| Farm Compare Ltd | Professional & scientific | 2018 |
| Farmacaffley Electrical Ltd | Construction | 2015 |
| Farmequip Ltd | Wholesale & retail | 2025 |
| Farmgate Consultancy Limited | Professional & scientific | 2008 |
| Farmgate Solutions Ltd | Agriculture & fishing | 2014 |
| Farrell Coaching & Mentoring Ltd | Other services | 2025 |
| Farrell Fintech Ltd | Professional & scientific | 2020 |
| FAT Sams (Armagh) Ltd | Hospitality | 2011 |
| Faversham Road Ltd | Construction | 2014 |
| FCM Consultancy Ltd | Administrative & support | 2025 |
| FEC Development Group Limited | Financial services | 2020 |
| Feednet AI Ltd | Information & communication | 2025 |
| Fegan Haulage Ltd | Transport & logistics | 2012 |
| Fern Resource Management Limited | Professional & scientific | 2018 |
| Fernaloy Sports Ltd | Wholesale & retail | 2018 |
| Fibre Planning Ltd | Professional & scientific | 2016 |
| Finn Enterprises Ltd | Wholesale & retail | 2023 |
| Finty Fabrications Limited | Manufacturing | 2021 |
| Fire Escape Ladders Ltd | Manufacturing | 2014 |
| First Stop Property Ltd | Real estate | 2020 |
| FKP Smyth Limited | Construction | 2016 |
| Fleet Asset Management Ltd | Transport & logistics | 2025 |
| Fleetwise Ltd | Wholesale & retail | 2012 |
| FLO Contracts Limited | Construction | 2023 |
| Floorform (UK) Limited | Construction | 1998 |
| Floorform Holdings Limited | Administrative & support | 2003 |
| Floorform Limited | Construction | 1994 |
| Flulhalps NI Limited | Extraterritorial | 1993 |
| FM1 Developments Ltd | Construction | 2010 |
| Focus Sports Performance Limited | Health & social care | 2018 |
| Food Market Distribution Limited | Hospitality | 2024 |
| Forde Trading Company Ltd | Manufacturing | 2024 |
| Forgottenflowers Ltd | Wholesale & retail | 2025 |
| Formac Ltd | Real estate | 2017 |
| Formac Property Co Ltd | Construction | 2024 |
| Formation Works Ltd | Real estate | 2024 |
| Forward Thinking, Future Planning Ltd | Real estate | 2009 |
| Four Seasons Garden Care & Maintenance Ltd | Construction | 2026 |
| Four Star Fuels Ltd | Wholesale & retail | 2016 |
| Four Star Fuels Trading Ltd | Wholesale & retail | 2019 |
| FOX Electrical Contracts Ltd | Construction | 2014 |
| FOX Field Farm Ltd | Agriculture & fishing | 2017 |
| Foyleside SC Limited | Real estate | 2024 |
| Franklin Consultancy Limited | Information & communication | 2025 |
| Frazer Livestock Limited | Agriculture & fishing | 2007 |
| Frenco Tradings Ltd | Construction | 2021 |
| Freshbite Armagh Limited | Manufacturing | 2005 |
| Friary Consultancy Services Ltd | Professional & scientific | 2022 |
| Fruitfield Service Station Limited | Wholesale & retail | 1998 |
| Fuel Direct Limited | Wholesale & retail | 2015 |
| Future Logistics (N.I) Limited | Transport & logistics | 2020 |
| G & D Catering Supplies Limited | Wholesale & retail | 2021 |
| G Baird Services Ltd | Construction | 2019 |
| G Dunleavy Limited | Information & communication | 2013 |
| G Murphy Transport Ltd. | Transport & logistics | 2017 |
| G&P Mccann Limited | Agriculture & fishing | 2022 |
| G. Curry Ltd | Transport & logistics | 2024 |
| G.M. Handipack Products Limited | Administrative & support | 1980 |
| GAA Property Trustee Company Ltd | Real estate | 2024 |
| Gaffney's Foot-Wear Ltd | Wholesale & retail | 2021 |
| Gaffney's Real Estate Limited | Real estate | 2021 |
| Garvey Transport Limited | Transport & logistics | 2014 |
| Gary Mccourt Financial Solutions Ltd | Financial services | 2016 |
| Gary Ward Architects Limited | Professional & scientific | 2024 |
| Gasp Ventures Limited | Real estate | 2015 |
| Gazzy Contracts Limited | Construction | 2026 |
| GC Tyres and Alignment Limited | Wholesale & retail | 2007 |
| Gcop Properties Ltd Ltd | Real estate | 2025 |
| GCS Midlands Limited | Transport & logistics | 2020 |
| GDK Legal Services Limited | Professional & scientific | 2022 |
| Geansaí Ltd | Wholesale & retail | 2026 |
| Genesis Holdings Ireland Limited | Financial services | 2024 |
| GEO Electrical Solutions Ltd | Construction | 2025 |
| GEORGIEV78 Construction Ltd | Construction | 2026 |
| Gerardobrien Ltd | Information & communication | 2024 |
| Gerry Mone Limited | Wholesale & retail | 2017 |
| Giffin Agri Sales Ltd | Manufacturing | 2026 |
| Giffin Ltd | Real estate | 2016 |
| Gigs NI Properties Ltd | Real estate | 2026 |
| Gilford Estate Unlimited Company | Real estate | 2019 |
| Gillen Steel Limited | Construction | 2007 |
| Gillis Developments Limited | Real estate | 2021 |
| GK Web Ltd | Wholesale & retail | 2014 |