| GET Wired Installations Ltd | Energy | 2009 |
| GG-527-028 Limited | Real estate | 2022 |
| Gibson Logistics Limited | Transport & logistics | 2018 |
| Gillsons Limited | Transport & logistics | 2010 |
| Ginger & Gray Ltd | Administrative & support | 2024 |
| GKJ Consulting Ltd | Professional & scientific | 2022 |
| GKJ Property Group Ltd | Construction | 2026 |
| Glide Ventures Ltd | Arts & recreation | 2025 |
| Global Amicus Limited | Financial services | 2005 |
| Globalbridge Advisory Ltd | Agriculture & fishing | 2025 |
| Glover Films Limited | Information & communication | 2002 |
| GLS Entertainments Ltd | Arts & recreation | 2014 |
| Gluckman Consulting Limited | Professional & scientific | 2014 |
| Golden Bear Productions Ltd | Information & communication | 2022 |
| Gomes Legacy Limited | Professional & scientific | 2024 |
| Goodcruisewins Ltd | Administrative & support | 2019 |
| Goodwood Fencing &Co Ltd | Construction | 2025 |
| Goox Ltd | Transport & logistics | 2025 |
| GPS Facilities Ltd | Construction | 2006 |
| Grabem Ltd | Transport & logistics | 2020 |
| Graham Stack Holdings Limited | Other services | 2023 |
| Graham Stack Productions Limited | Information & communication | 2002 |
| Graham Stack Properties Limited | Real estate | 2023 |
| Gran SOL Trading Ltd | Wholesale & retail | 2023 |
| Granary Ventures Limited | Financial services | 2001 |
| Grand Old Time Limited | Financial services | 2026 |
| Graystone Demolition and Plant Services Ltd | Construction | 2020 |
| Green Chord Limited | Administrative & support | 2019 |
| Greenacres Nurseries Limited | Education | 2012 |
| Greenways Real Estate | | 2009 |
| Gregory Securities Limited | Construction | 1987 |
| Grenville FOX Holdings Limited | Financial services | 2010 |
| Groutpro Limited | Construction | 2012 |
| Growq Ltd | Professional & scientific | 2018 |
| Guildford RD Management Ltd | Real estate | 2021 |
| Gurkha Gardening Services Ltd | Professional & scientific | 2025 |
| GV13 Limited | Arts & recreation | 2023 |
| H.& K.Engineering Company Limited | Real estate | 1955 |
| Hackett Investments Limited | Real estate | 2018 |
| HAL Productions Limited | Information & communication | 2013 |
| Hale Developments Limited | Construction | 2009 |
| Hale Residential Ltd | Construction | 2023 |
| Half Moon Yard Freehold Limited | Households | 2013 |
| Hallam FAC Limited | Wholesale & retail | 2022 |
| Hallmark Construction & Development Ltd | Construction | 2023 |
| Halls and Halls Limited | Professional & scientific | 2016 |
| Halls and Halls Prive Ltd | Professional & scientific | 2022 |
| Hamilton-Taylor Accounting Ltd | Professional & scientific | 2017 |
| Hammerson Consulting Limited | Professional & scientific | 2026 |
| Hampton Estates Investments Limited | Real estate | 2015 |
| Hands Down Academies Ltd | Arts & recreation | 2025 |
| Handsdown Epsom LLP | | 2012 |
| Harbour Club Investments Ltd | Real estate | 2018 |
| Harriss Dental Ltd | Health & social care | 2020 |
| Harwood & Sons Painting & Decorating Ltd | Construction | 2025 |
| Hats OFF Events Limited | Administrative & support | 2016 |
| Haus List Ltd. | Real estate | 2020 |
| Haus Structures Ltd | Professional & scientific | 2023 |
| Hawksman Real Estate Ltd | Real estate | 2015 |
| Hayward Road 37-55 (Thames Ditton) RTM Company Ltd | Households | 2021 |
| HE96 Promotions Limited | Arts & recreation | 2020 |
| HE96 Properties Limited | Real estate | 2024 |
| Heatherbank Close Management Company Limited | Households | 2001 |
| Heaton & Williams Consultancy Ltd | Financial services | 2022 |
| Hector Properties Limited | Real estate | 2019 |
| Hedgevision Ltd | Wholesale & retail | 2024 |
| Hedley House Interiors Limited | Real estate | 2020 |
| HEJ IT Ltd | Information & communication | 2024 |
| Hemisphere Limited | Professional & scientific | 1994 |
| Hemming Property Ltd | Real estate | 2024 |
| Henley James Limited | Construction | 2009 |
| Herringswell Gym Development Ltd | Construction | 2018 |
| Hertfordshire Homes Limited | Extraterritorial | 1998 |
| Herworx Ltd | Professional & scientific | 2026 |
| Hexagon ETQ Limited | Professional & scientific | 2022 |
| Hexagon Manufacturing Intelligence Management Limited | Professional & scientific | 2015 |
| Hexagon Positioning Intelligence Limited | Professional & scientific | 2013 |
| Hexagon QMS Limited | Professional & scientific | 2022 |
| Hexagon Reliance Limited | Financial services | 2022 |
| HH 02 Properties Ltd | Real estate | 2023 |
| Hi-Sky Loft Conversions Ltd | Construction | 2021 |
| Higgins Trading Limited | Administrative & support | 2016 |
| High Level Group Limited | Information & communication | 2008 |
| High LOW Flow Ltd | Education | 2024 |
| Highfields Property Finance Limited | Information & communication | 2009 |
| Hilly Skies Ltd | Transport & logistics | 2025 |
| Hipster Beer Company Limited | Extraterritorial | 2015 |
| Hlfc Ltd | Information & communication | 2015 |
| Holly Newth Design & Illustration Ltd | Professional & scientific | 2025 |
| Holly Rise Consultants Ltd | Health & social care | 2009 |
| Homax Ventures Limited | Other services | 2016 |
| Homes & Builders Ltd | Construction | 2021 |
| Hopclothing Ltd | Wholesale & retail | 2025 |
| Horizon Advice Ltd | Administrative & support | 2017 |
| Horn Group Limited | Real estate | 2024 |
| Horti Ltd | Wholesale & retail | 2022 |
| House of Mulberry International Ltd. | Transport & logistics | 1994 |
| HPL Steyning Ltd | Real estate | 2025 |
| Hrjk Properties Ltd | Extraterritorial | 2019 |
| Huckleberry Project Limited | Information & communication | 2014 |