| Food Innovations Consultancy Ltd | Hospitality | 2025 |
| Footfall Logistics Limited | Information & communication | 2006 |
| Formation Data Limited | Wholesale & retail | 2023 |
| Formation Holdings Limited | Financial services | 2024 |
| Formation Lighting Ltd | Wholesale & retail | 2014 |
| Formation Property Limited | Financial services | 2021 |
| Fortis Family Holdings Ltd | Financial services | 2024 |
| Francesco Hair and Beauty Salon Limited | Other services | 2021 |
| Freshgrip Limited | Wholesale & retail | 2023 |
| Fruit Corner Limited | Wholesale & retail | 2011 |
| G a R Contractors Limited | Construction | 2005 |
| G a R Plant Limited | Construction | 2023 |
| G S Automotive Ltd | Wholesale & retail | 2011 |
| Genium Selection Limited | Administrative & support | 2003 |
| Geodude TCG Ltd | Wholesale & retail | 2025 |
| Geoff Fogg Ltd | Manufacturing | 2014 |
| George Jackson Limited | Construction | 2011 |
| GET Smart Tuition Limited | Education | 2011 |
| Global Motor Factors Ltd | Wholesale & retail | 2011 |
| Gravitron Limited | Professional & scientific | 2016 |
| Greenacre Renewable Energy Limited | Professional & scientific | 2011 |
| Greenwood Surveying Limited | Professional & scientific | 2016 |
| Groves Xtreme Clean Ltd | Administrative & support | 2015 |
| Gtguk Services Limited | Financial services | 2013 |
| Gym Bees Solutions Limited | Manufacturing | 2022 |
| Hair by RHI Limited | Other services | 2026 |
| Halo Law Limited | Professional & scientific | 2018 |
| Happy Print Ltd. | Administrative & support | 2023 |
| Harrier Properties Limited | Real estate | 2017 |
| Harvard Holdings (WSM) Limited | Financial services | 2019 |
| Harvard Support Services Limited | Health & social care | 2018 |
| Hatton One Ltd | Construction | 2018 |
| Hear Clear Mobile Ltd | Health & social care | 2025 |
| Heffernan Holdings Ltd | Wholesale & retail | 2017 |
| Help 4 Hounds Rescue Ltd | Agriculture & fishing | 2021 |
| Hembrough Properties Limited | Real estate | 2026 |
| Hemmens Property Holdings Limited | Construction | 2025 |
| Henley Consulting Services Ltd | Professional & scientific | 2008 |
| Highburn Properties Limited | Real estate | 2021 |
| Highwater Bathrooms Limited | Wholesale & retail | 2025 |
| Hiwater Limited | Wholesale & retail | 2017 |
| Holly Loves Toys Limited | Wholesale & retail | 2010 |
| Hordell Investment Ltd | Real estate | 2018 |
| Hordell Ltd | Construction | 2018 |
| Horizon Ventures International Ltd | Manufacturing | 2023 |
| Houghton & Stirling Ltd | Real estate | 2025 |
| Houghton Investments Ltd | Real estate | 2018 |
| HOUSE2GARDENS Ltd | Administrative & support | 2012 |
| Howard's Removals Somerset Limited | Transport & logistics | 2018 |
| Howe Design & Build Limited | Construction | 2020 |
| HSF Construction Ltd | Construction | 2023 |
| HSF Property Group Ltd | Real estate | 2023 |
| Hunger Busters Limited | Hospitality | 2019 |
| I. M. Aesthetics Ltd | Health & social care | 2019 |
| ILP Lighting Limited | Manufacturing | 2023 |
| Intentor Ltd | Professional & scientific | 2006 |
| Invictor Estates Ltd | Real estate | 2021 |
| Invictor Transport Ltd | Transport & logistics | 2015 |
| IP16-1 Ltd | Real estate | 2026 |
| J & C Services Limited | Administrative & support | 2015 |
| J & F Detain Ltd | Administrative & support | 2022 |
| J a Ross Electrical Services Limited | Construction | 2003 |
| Jacked Gym Ltd | Arts & recreation | 2025 |
| Jackson Clark Limited | Construction | 2016 |
| Jakom Stores Trading Limited | Wholesale & retail | 2026 |
| Jamie Balson Building Services Ltd | Construction | 2012 |
| Janes Trucksport Limited | Arts & recreation | 2015 |
| Jatech Limited | Information & communication | 1996 |
| JAV Services Ltd | Administrative & support | 2016 |
| JC Adventures Ltd | Arts & recreation | 2016 |
| Jemo Foods Limited | Hospitality | 2026 |
| Jenkins Investments Group Ltd | Real estate | 2023 |
| JKG Estates Ltd | Real estate | 2025 |
| JLP UK Consultants Ltd | Professional & scientific | 2025 |
| JO Bird and Company Limited | Manufacturing | 1981 |
| Johnsbazaars Ltd | Wholesale & retail | 2007 |
| Jolly Chef Ltd | Manufacturing | 2023 |
| Jontymotors Ltd | Wholesale & retail | 2021 |
| Jtkmckenna Ltd | Information & communication | 2023 |
| Julia’S Flowers Highbridge Ltd | Wholesale & retail | 2025 |
| Justinand Stacey Property Maintenance Limited | Construction | 2025 |
| K Fisher Business Advisory Limited | Professional & scientific | 2017 |
| Katkabin Limited | Manufacturing | 2011 |
| Keedwell Konnect Limited | Transport & logistics | 2020 |
| Kenliz Limited | Professional & scientific | 2025 |
| Kestrel Properties Limited | Real estate | 2017 |
| Keystone Estates Investments Ltd | Real estate | 2024 |
| KH Steel Ltd | Manufacturing | 2025 |
| Kilo Investments Limited | Real estate | 2008 |
| Klki Holdings Limited | Financial services | 1982 |
| Knight Projects Ltd | Households | 2022 |
| Know Progress Ltd | Professional & scientific | 2005 |
| Kontour London Ltd | Real estate | 2025 |
| Kontourbuild Ltd | Construction | 2017 |
| L.R.D.G Ltd | Transport & logistics | 2018 |
| Lakshmy UK Investments Ltd | Financial services | 2021 |
| Lanaa Ltd | Hospitality | 2025 |
| Lanion Property Limited | Real estate | 2003 |
| Lavela Catering Ltd | Hospitality | 2025 |
| Leadbetter Enterprises Limited | Construction | 2019 |