| G.E UK Services Limited | Construction | 2025 |
| G.Spencer & SON Limited | Construction | 2003 |
| G2G Productions and Training Ltd | Professional & scientific | 2025 |
| Gadnet Limited | Information & communication | 2019 |
| Galactic Logistics Ltd | Transport & logistics | 2021 |
| Gamson HS Ltd | Transport & logistics | 2025 |
| Garden Living Landscapes Ltd | Administrative & support | 2021 |
| GBS Engineering Services Limited | Professional & scientific | 2018 |
| Gcon PVT. Ltd | Professional & scientific | 2021 |
| Gelaterra Limited | Wholesale & retail | 2024 |
| Generation Muscle UK Ltd | Wholesale & retail | 2025 |
| Genuiti Ltd | Professional & scientific | 2020 |
| GEO Support Services Ltd | Mining & quarrying | 2020 |
| George Predescu 0382 Limited | Transport & logistics | 2014 |
| GET Shawty Limited | Wholesale & retail | 2023 |
| GHE Construct Limited | Construction | 2018 |
| Gingernut Books Ltd | Information & communication | 2010 |
| Global Wordsmiths CIC | Arts & recreation | 2015 |
| GM21 Ltd | Construction | 2020 |
| GN IT Systems Limited | Information & communication | 2024 |
| GNA22 Ltd | Wholesale & retail | 2025 |
| Go 4 Despatch Limited | Transport & logistics | 2013 |
| God's Care Global Services Limited | Health & social care | 2018 |
| Goddess Aesthetic, Hair & Beauty Ltd | Other services | 2024 |
| Golden Apple Coffee Food Limited | Hospitality | 2024 |
| Golden CUT in Sutton in Ashfield Ltd | Other services | 2025 |
| Golden Heaven Care Ltd | Administrative & support | 2025 |
| Golding Electrical Contractors Ltd | Construction | 2018 |
| Goliath Creative Ltd | Professional & scientific | 2021 |
| Govern Limited | Professional & scientific | 2018 |
| GPI Secure Limited | Administrative & support | 2025 |
| Grace Transport Services Ltd | Transport & logistics | 2026 |
| Gracias Capital Limited | Financial services | 2025 |
| Grade Loom Academy Limited | Education | 2025 |
| Grafters 2.0 Ltd | Wholesale & retail | 2024 |
| Grainger Technical Services Limited | Professional & scientific | 2022 |
| GRB Cladding Ltd | Construction | 2019 |
| Great Wall (Stanton Hill) Limited | Hospitality | 2019 |
| Green Valley Healthcare Ltd | Health & social care | 2024 |
| Greensfields V&S Ltd | Real estate | 2025 |
| Grigori Ltd | Transport & logistics | 2015 |
| Grill House and Bar Ltd | Wholesale & retail | 2025 |
| Grillers Peri Peri Limited | Hospitality | 2025 |
| Grosvenor Property Lettings Ltd | Real estate | 2023 |
| Grosvenor Rooms Ltd | Hospitality | 2018 |
| Groundworks Landscaping Ltd | Administrative & support | 2025 |
| Gsent African Village Ltd | Wholesale & retail | 2026 |
| Gundogdu Catering Limited | Hospitality | 2017 |
| Gurkha Curry House Limited | Hospitality | 2023 |
| Gviautomotive Ltd | Wholesale & retail | 2025 |
| H Butler Estates Ltd | Real estate | 2023 |
| H&F Group Developments Limited | Real estate | 2023 |
| H-K-L Special Projects Limited | Construction | 2017 |
| H-K-L Specialists Ltd | Construction | 2013 |
| HA Automotive Limited | Wholesale & retail | 2017 |
| Hagiazo Props and Structs Ltd | Construction | 2021 |
| Hair 4 HIM Limited | Other services | 2005 |
| HAJ Holdings Ltd | Financial services | 2021 |
| Halleylujah Motorhomes Ltd | Wholesale & retail | 2023 |
| Hampshire Hill Group Limited | Financial services | 2001 |
| Hampshire Hill Holdings Ltd | Financial services | 2025 |
| Hampshire Hill Limited | Extraterritorial | 2002 |
| Hampton Hills Clothing Limited | Wholesale & retail | 2024 |
| Hanson Ventures Limited | Financial services | 2015 |
| Hanuelproperties Limited | Real estate | 2024 |
| Happysplash Ltd | Arts & recreation | 2020 |
| Harcas Marketing Ltd | Professional & scientific | 2025 |
| Hardwick Contract Furniture Ltd | Manufacturing | 2025 |
| Hardwick Developments & Holdings Limited | Real estate | 2023 |
| Hardwick Group of Companies Limited | Financial services | 2022 |
| Hardwick Motor Company Limited | Wholesale & retail | 1984 |
| Harfin Limited | Financial services | 2024 |
| Harris Composite Ltd | Manufacturing | 2023 |
| Harrlangs Maintenance Limited | Administrative & support | 2024 |
| Hartley Site Engineering Ltd | Construction | 2003 |
| HASANDAGLI68 Ltd | Hospitality | 2024 |
| Havenswood CIC | Education | 2021 |
| Hawkins Security Limited | Administrative & support | 2012 |
| Haworth Armson Brand & Design Solutions Limited | Arts & recreation | 2016 |
| Haworth Armson Business Solutions Limited | Administrative & support | 2016 |
| Haworth Armson Group Limited | Professional & scientific | 2016 |
| Haworth Armson Limited | Professional & scientific | 2015 |
| Haworth Associates Limited | Professional & scientific | 2014 |
| Haworth Dunn Financial Services Limited | Financial services | 2018 |
| Hayley Gill Hair & Beauty Ltd | Other services | 2015 |
| Hayleyjamescreations Ltd | Extraterritorial | 2025 |
| Hays Hire Tools and Equipment Limited | Administrative & support | 2023 |
| Hbmk Ltd | Transport & logistics | 2025 |
| HD Electrical Systems Limited | Construction | 2007 |
| HDP Community Pubs Ltd | Hospitality | 2021 |
| HDP Midlands Ltd | Hospitality | 2022 |
| HDP Pubs and Inns Ltd | Hospitality | 2021 |
| Head Services (Nottingham) Ltd | Wholesale & retail | 2026 |
| Heather Healthcare Services Ltd. | Health & social care | 2017 |
| HEC Showman Limited | Manufacturing | 1997 |
| Hemmings Floor Restoration Ltd | Construction | 2020 |
| Hemsley Organics Limited | Wholesale & retail | 2017 |
| Herrett Commercial Properties Limited | Other services | 2025 |
| Herrett Construction Contractors Ltd | Construction | 2017 |
| Herrett Homes Limited | Construction | 2020 |