| Farmlodge Property Ltd | Real estate | 2016 |
| Fast Driven ADS Ltd | Extraterritorial | 2026 |
| Fastcast Studios Ltd | Information & communication | 2024 |
| Feet First NI Podiatry Ltd | Health & social care | 2015 |
| Ferrard Meadow Ltd | Financial services | 2023 |
| FG Bricklaying Ltd | Construction | 2025 |
| Field Sales Resource Ltd | Wholesale & retail | 2019 |
| Financial Fruition Ltd | Wholesale & retail | 2020 |
| Fine Craft Joinery Limited | Manufacturing | 2020 |
| Fiona Higgins Beauty Academy Ltd | Other services | 2024 |
| Fiona Martyn Limited | Professional & scientific | 2024 |
| Fiosrach Consulting Limited | Information & communication | 2017 |
| Firmount Veterinary Clinic Ltd | Professional & scientific | 2014 |
| Fishwarehouse Ltd | Hospitality | 2013 |
| Fixrapp Limited | Information & communication | 2026 |
| Flightline Technology Ltd | Information & communication | 2023 |
| Floorgard Limited | Administrative & support | 2008 |
| Fonsrachelis Healthcare Services Ltd | Health & social care | 2025 |
| Food and Craic Limited | Information & communication | 2025 |
| Football FUN Factory (Community 129) Limited | Arts & recreation | 2024 |
| Foreboding Static Ltd | Wholesale & retail | 2026 |
| Forte Search Group Ltd | Administrative & support | 2023 |
| Fortress Clinical Laboratory Ltd | Professional & scientific | 2023 |
| Fortress Diagnostics Ltd | Manufacturing | 2000 |
| Fortress Direct Ltd | Manufacturing | 2021 |
| Fortress Group Holdings Limited | Professional & scientific | 2020 |
| Forty Five Holdings Ltd | Professional & scientific | 2021 |
| Fountain Street Rentals Ltd | Real estate | 2021 |
| FPM Precast Limited | Professional & scientific | 1988 |
| Franco J Limited | Health & social care | 2017 |
| Fresh Minds Education Ltd | Education | 2020 |
| Fresh Minds Ltd | Health & social care | 2018 |
| Friendship Travel Limited | Administrative & support | 1999 |
| Fssqsyxlgs Limited | Wholesale & retail | 2025 |
| Furama Restaurants Limited | Hospitality | 2026 |
| G Burke Contracts Limited | Construction | 2026 |
| G Hughes Properties Limited | Real estate | 2026 |
| G N Contracts (N.I.) Limited | Construction | 2017 |
| Gaia Salon Ltd | Other services | 2020 |
| Gault Transport Warehouse Storage & Distribution Ltd | | 2002 |
| GBS Roofing Limited | Construction | 2011 |
| Gdirect LP | | 2012 |
| GDS Golf Limited | Arts & recreation | 2017 |
| Gembadocs Limited | Information & communication | 2024 |
| Generalni Ltd | Wholesale & retail | 2023 |
| Geterbrewed Limited | Manufacturing | 2013 |
| Gfmk Ltd | Construction | 2019 |
| Gfni Ltd | Information & communication | 2021 |
| GH Decor Ltd | Construction | 2016 |
| Gibson & Lynn Ltd. | Wholesale & retail | 2022 |
| Gibson Free Range Eggs Limited | Wholesale & retail | 2021 |
| Gillan Estates Ltd | Real estate | 2025 |
| Gillespie GRG (NI) Limited | Manufacturing | 2024 |
| Ginvita Limited | Health & social care | 2022 |
| Glam Stitch Limited | Manufacturing | 2019 |
| Glenbio Distribution Ltd | Extraterritorial | 2014 |
| Glenbio Ltd | Manufacturing | 2012 |
| Glenbio Pharma UK Ltd | Wholesale & retail | 2021 |
| Glencombe Wood Management Ltd | Real estate | 2024 |
| Gletter Limited | Administrative & support | 2025 |
| Global Clarity Holdings LLP | | 2017 |
| Global Marine Fuel (GMF) LLP | | 2014 |
| Global Traders Plus Ltd | Wholesale & retail | 2017 |
| GMG Software Ltd | Wholesale & retail | 2022 |
| GMP Industrial Limited | Construction | 2004 |
| Goanserve | Education | 2018 |
| Golden Popcorn Limited | Manufacturing | 1998 |
| Graded Homes Limited | Extraterritorial | 2024 |
| Grange Cross Community Association | Arts & recreation | 2012 |
| Granlough Properties Ltd | Construction | 2007 |
| Granny Macs Ltd | Wholesale & retail | 2021 |
| Green Coffee Merchants Global Ltd | Financial services | 2020 |
| Green COW Studios Ltd | Information & communication | 2024 |
| Green Current Energy Ltd | Energy | 2025 |
| Greenan Industries Limited | Extraterritorial | 2023 |
| Greenbury Impex LLP | | 2013 |
| Greenfield Apparel Limited | Manufacturing | 2017 |
| Greenfields Daycare Limited | Health & social care | 2011 |
| Greenlux Properties Ltd | Real estate | 2023 |
| Greenmount Project Services Ltd | Professional & scientific | 2024 |
| Grid Cartel Ltd | Manufacturing | 2023 |
| Grillo Belfast Ltd | Hospitality | 2021 |
| Ground Check Ltd | Construction | 2007 |
| Grove Assets Ltd | Real estate | 2023 |
| Gruum Skincare Ltd | Professional & scientific | 2023 |
| GS Medical Limited | Health & social care | 2019 |
| GSH Books Limited | Information & communication | 2020 |
| GT Services (NI) Ltd | Transport & logistics | 2008 |
| GTK Facilities Management Ltd | Administrative & support | 2014 |
| Gumpshen Limited | Information & communication | 2011 |
| GW & JW Properties Limited | Other services | 2017 |
| Gym An-Trim Fitness Limited | Arts & recreation | 2023 |
| Gym An-Trim Limited | Arts & recreation | 2018 |
| H2T Equestrian Limited | Wholesale & retail | 2020 |
| Hanley Automation Ltd | Manufacturing | 2014 |
| Happy Valley 168 Limited | Hospitality | 2023 |
| Harkness Engineering Limited | Manufacturing | 2013 |
| Harmony Hair Ltd | Other services | 2025 |
| Hasdow LK Limited | Wholesale & retail | 2024 |
| HBC Care Services Ltd | Public administration | 2024 |