| East and Sage Ltd | Wholesale & retail | 2026 |
| East Antrim Fallen Stock Ltd | Water & waste | 2024 |
| East Street Donaghadee Management Limited | Extraterritorial | 2007 |
| East West Marine Limited | Wholesale & retail | 2006 |
| Easy Storage (N.I.) Ltd | Transport & logistics | 2023 |
| Eaveswood Properties Limited | Extraterritorial | 2001 |
| Ebsni Limited | Construction | 2017 |
| Eden Park Land Management Ltd | Households | 2022 |
| Eden Square Management Company Limited | Households | 2003 |
| Edengrove Land Management Ltd | Households | 2018 |
| Effective Business Consultancy Ltd | Administrative & support | 2023 |
| Eglinton Bakery Limited | Manufacturing | 2019 |
| Eladnova Properties Ltd | Real estate | 2025 |
| Elara Property Ltd | Extraterritorial | 2021 |
| Electraction (N.I.) Limited | Manufacturing | 1991 |
| Electrical Machine Services Ltd | Manufacturing | 2007 |
| Element Consultants Ltd. | Professional & scientific | 2007 |
| Elite Performance Coaching Antrim Ltd | Arts & recreation | 2023 |
| ELK Power Ltd | Administrative & support | 2017 |
| Ellisfield Maintenance Ltd | Households | 2004 |
| Emerson's Mill Management Company Limited | Households | 2016 |
| Endorpha Ltd | Energy | 2022 |
| Epnt Ltd | Real estate | 2025 |
| Erindara Limited | Professional & scientific | 2009 |
| Ernie Coates Track Days Ltd | Arts & recreation | 2021 |
| Ethnic Minority Advise Hub Ltd | Information & communication | 2025 |
| Exchange Avenue Management Ltd | Extraterritorial | 2010 |
| Explor Group Ltd | Financial services | 2021 |
| Fair Wind (N.I.) Limited | Agriculture & fishing | 2013 |
| Fairways Helens Bay Management Limited | Extraterritorial | 2003 |
| Family & Life Centre for Public Policy Ltd | Other services | 2014 |
| Farm Lodge Management Company Limited | Households | 2017 |
| Farmlodge Land Management Ltd | Households | 2017 |
| FEE Construction Ltd | Construction | 2017 |
| Feehogue Holdings Limited | Financial services | 2026 |
| Fenchelle Ltd | Administrative & support | 2015 |
| Fernridge Management Co Ltd | Households | 2017 |
| Ferry Quarter Management Company Ltd | Households | 2012 |
| Finishingtouchni Ltd. | Construction | 2022 |
| Fiona L Campbell Limited | Arts & recreation | 2003 |
| Firmount Estate Management Limited | Extraterritorial | 1997 |
| Firmount Housing Management Limited | Extraterritorial | 1997 |
| First Street Property Ltd | Real estate | 2012 |
| Five Star Nails Ballyclare Ltd | Other services | 2026 |
| Flaxall View Management Ltd | Households | 2025 |
| Fleetfocus Ltd | Wholesale & retail | 2019 |
| Fleming & Cuthbert Limited | Other services | 2007 |
| Flintfield Holdings Limited | Real estate | 2024 |
| FLO and DOT Ltd | Wholesale & retail | 2026 |
| Flowstate Business Solutions Ltd | Administrative & support | 2026 |
| Food Stories Limited | Manufacturing | 2014 |
| Forge Lane (Ballyclare) Management Company Limited | Households | 2020 |
| Forsythe Engineering & Construction Ltd | Professional & scientific | 2024 |
| Fort Consultancy Services Ltd | Professional & scientific | 2022 |
| Fort Developments Ltd | Real estate | 2024 |
| Forthill Management Company Limited | Extraterritorial | 1999 |
| Fountain Street Management Company Antrim Limited | Real estate | 2022 |
| From Bump to Baby Ltd | Health & social care | 2022 |
| Full Circle Jmgb Ltd | Other services | 2024 |
| Funnel Vision Software Ltd | Information & communication | 2024 |
| FW Outlet Ltd | Wholesale & retail | 2025 |
| G & M Mills Plant Hire & Sales LLP | | 2007 |
| G Wilson Haulage Ltd | Transport & logistics | 2015 |
| G-Men Limited | Information & communication | 2016 |
| Gannon Engineering Solutions Ltd | Manufacturing | 2025 |
| Gardiner Square Management Co. Ltd | Households | 2009 |
| Garlandstown Limited | Real estate | 2011 |
| Gary Mitchell Productions Ltd | Information & communication | 2026 |
| Gashfah Farms Ltd | Professional & scientific | 2025 |
| GD Windows and Glazing Ltd | Manufacturing | 2023 |
| GE Health, Safety & Engineering Compliance Soultions Ltd | Professional & scientific | 2026 |
| Gelatos (N.I.) Ltd | Hospitality | 2016 |
| Genie Insights Holdings Ltd | Financial services | 2025 |
| Genie Insights Ltd | Wholesale & retail | 2016 |
| George Diesel Repairs Ltd | Wholesale & retail | 2024 |
| GH Storey & Associates Ltd | Real estate | 2024 |
| GHS Holdings Limited | Financial services | 2014 |
| Gibson's Bakery Belfast Limited | Manufacturing | 2019 |
| Gifts & Giggles Galore Ltd | Wholesale & retail | 2025 |
| GJB Plant Hire Limited | Construction | 2025 |
| Glacier Water Systems Limited | Wholesale & retail | 2002 |
| Glasvey Limited | Professional & scientific | 2003 |
| Glebe Hill Management Ltd | Extraterritorial | 2012 |
| Glen Oak Grange Management Company Limited | Extraterritorial | 2013 |
| Glenarm Apartments Management Ltd | Households | 2014 |
| Glenbane Limited | Wholesale & retail | 2005 |
| Glenburn Management Limited | Households | 1997 |
| Glencoe Heights Management Company Limited | Households | 2006 |
| Glencraig Land Management Ltd | Households | 2017 |
| Glendale AAT Limited | Wholesale & retail | 2019 |
| Glendonagh Developments Limited | Construction | 2007 |
| Glenmay Limited | Households | 2002 |
| Glenn Alderdice Ltd | Professional & scientific | 2016 |
| Gleno Property Limited | Real estate | 2019 |
| Glenvale Cottage Developments Ltd | Construction | 2024 |
| Glenwell Mews Land Management Ltd | Households | 2017 |
| GLO Labs Limited | Information & communication | 2019 |
| Global Cooling Solutions Ltd | Energy | 2015 |
| Global Water Jetting Alliance Limited | Professional & scientific | 2024 |
| GM Renewables Ltd | Manufacturing | 2025 |