| Frontier Associates L.P. | | 2012 |
| Frontier Engineering Limited | Other services | 2007 |
| Frontier Global LP | | 2015 |
| Frontier Import/Export L.P. | | 2011 |
| Frontier IP Management Limited | Financial services | 2013 |
| Frontier Promotions L.P. | | 2010 |
| Frontier Restaurant Limited | Hospitality | 2014 |
| Frontier Robotics Limited | Professional & scientific | 2023 |
| Frontier Solutions L.P. | | 2008 |
| Frontier Supplies L.P. | | 2009 |
| Frontiers Capital Founder Partner III SLP | | 2005 |
| Frontiers Capital Founder Partner SLP | | 2001 |
| Frontiers Capital Growth Founder Partner SLP | | 2009 |
| Frontiers Menswear Ltd | Wholesale & retail | 2015 |
| Frontino Trade LP | | 2016 |
| Frontline Logistics LP | | 2015 |
| Frost & Thaw Limited | Professional & scientific | 2023 |
| Frost Legal Ltd | Administrative & support | 2019 |
| Frosterica LP | | 2012 |
| Frosts Accountants Limited | Other services | 2009 |
| Frosty Limited | Hospitality | 2020 |
| Frozen Head Ltd | Wholesale & retail | 2022 |
| Frozenweb Limited | Information & communication | 2004 |
| FRR Amerique DU Nord Diversifie PE 2007 LP | | 2007 |
| FRR Europe Diversifie PE 2007, L.P. | | 2007 |
| Frsport Limited | Education | 2025 |
| Fru-Fru LP | | 2008 |
| Fruit Caravan LP | | 2015 |
| Fruit Loop VEG Ltd | Wholesale & retail | 2023 |
| Fruit Trading Group LP | | 2014 |
| Fruitexpo LP | | 2014 |
| Fruitful Nutrition Ltd | Health & social care | 2024 |
| Fruits in the City Limited | Hospitality | 2013 |
| Frutin Travel Limited | Administrative & support | 2020 |
| Frutoland International LP | | 2016 |
| Fruttivendolo Leith Limited | Wholesale & retail | 2026 |
| Fryers Records Limited | Wholesale & retail | 2014 |
| FS Bags Boutique Ltd | Wholesale & retail | 2025 |
| FS TEC Holding LP | | 2026 |
| FS21 Sport Limited | Arts & recreation | 2008 |
| FSF Ltd | Professional & scientific | 2026 |
| FSG Edinburgh Ltd | Other services | 2025 |
| Fsj-Networks Ltd | Information & communication | 2025 |
| FSL Property Ltd | Real estate | 2024 |
| FSM Consultancy Services Ltd | Professional & scientific | 2021 |
| FSR Property Ltd | Real estate | 2024 |
| FSX Holdings Limited | Real estate | 2022 |
| FT F OB Limited | Professional & scientific | 2022 |
| FT Linden Limited | Professional & scientific | 2010 |
| FT Property Holding Limited | Administrative & support | 2010 |
| FT Property Investments Limited | Hospitality | 2008 |
| FT R+D Academy L.P. | | 2018 |
| FT Services Ltd | Transport & logistics | 2026 |
| FTF Holdings Limited | Financial services | 2026 |
| FTM Consultancy Limited | Professional & scientific | 2024 |
| Ftnx Ltd | Wholesale & retail | 2026 |
| FTO Group Limited | Information & communication | 2021 |
| FTT Healthcare Ltd | Health & social care | 2023 |
| Fuchsia Blue Limited | Professional & scientific | 2006 |
| Fudi Ltd | Manufacturing | 2025 |
| Fuel the Power Ltd | Wholesale & retail | 2023 |
| Fuelcell UK Limited | Extraterritorial | 2014 |
| Fueling Greatness Ltd | Health & social care | 2023 |
| Fuellink Contracts Ltd | Administrative & support | 2011 |
| Fuellink Holdings (Scotland) Ltd | Professional & scientific | 2012 |
| Fuellink Systems Ltd | Administrative & support | 2010 |
| Fuelton Industry LP | | 2015 |
| Fuelton Management LP | | 2015 |
| Fuerte Group LP | | 2016 |
| Fuerte UK Limited | Hospitality | 2023 |
| Fuji Access, L.P. | | 2011 |
| Fujiwara NET LP | | 2014 |
| Fukuyama Invest LP | | 2013 |
| Fulbeck-House Limited | Hospitality | 2011 |
| Fulcio Services Limited | Professional & scientific | 2024 |
| Fulcrum Coaching Ltd | Professional & scientific | 2020 |
| Fulcrum Construction Ltd | Construction | 2019 |
| Fulham KHL Limited | Real estate | 2024 |
| Fulham Ltd | Construction | 2024 |
| Full Back (Scotland) Limited | Administrative & support | 2013 |
| Full Circle Campers Ltd | Administrative & support | 2024 |
| Full Circle Development Consultancy Ltd | Other services | 2011 |
| Full Circle Partners Ltd | Professional & scientific | 2022 |
| Full Circle Trade LP | | 2015 |
| Full Global Technology L.P. | | 2012 |
| Full Harvest Hill Ltd | Real estate | 2016 |
| Full House Associates Ltd | Real estate | 2015 |
| Full Luck Future LP | | 2017 |
| Full Luck Lagoon LP | | 2017 |
| Full Luck Today LP | | 2017 |
| Full Marketing & Promotions L.P. | | 2010 |
| Full Moon Analysis Limited | Financial services | 2012 |
| Full Scope Property Group Ltd | Real estate | 2025 |
| Full SET Productions Ltd | Manufacturing | 2024 |
| Full Sky Ltd | Hospitality | 2018 |
| Full-Hack Developer Ltd | Information & communication | 2024 |
| Fullarton ML Limited | Professional & scientific | 2014 |
| Fulliam Ltd | Administrative & support | 2019 |
| Fullonart Ltd | Information & communication | 2007 |
| Fullproxy Limited | Information & communication | 2015 |