| Generative AI Solutions Ltd | Information & communication | 2008 |
| Gilisound Limited | Hospitality | 2018 |
| Give the Dog a Bone Limited | Information & communication | 2006 |
| Glen House Resident Management Company Limited | Households | 2025 |
| Glenholme Developments Limited | Construction | 2004 |
| Glenwell Developments Limited | Construction | 2002 |
| Global Team Building Limited | Professional & scientific | 1999 |
| Glyn Farm (Colwyn Bay) Residents Management Company Limited | Households | 2021 |
| Go-To Freight Limited | Transport & logistics | 2024 |
| Golf Starz Limited | Arts & recreation | 2018 |
| Goodwin Planning Services Limited | Professional & scientific | 2003 |
| Goulden Road (Didsbury) Management Company Limited | Real estate | 2011 |
| Gracerose Retail Ltd | Wholesale & retail | 2024 |
| Gradwell Farms Limited | Agriculture & fishing | 1997 |
| Grainger Park Goldsborough Management Company Limited | Households | 2022 |
| Granby Meadows Management Company Limited | Households | 2022 |
| Granfield Consulting Ltd | Professional & scientific | 2019 |
| Grange Development Yorkshire Limited | Construction | 2015 |
| Grange Road (Hugglescote) Residents Management Company Limited | Households | 2019 |
| Greater Consulting Services Ltd | Professional & scientific | 2020 |
| Greenlit Labs Ltd | Information & communication | 2026 |
| Gregory & Smyth Consulting Ltd | Professional & scientific | 2024 |
| Grey Holdings Ltd | Information & communication | 2022 |
| Greystone Meadows (Undy) Management Company Limited | Households | 2019 |
| Grimster Planning Limited | Professional & scientific | 2019 |
| Groes Developments Limited | Construction | 2023 |
| GROUNDEDCW5 Ltd | Hospitality | 2025 |
| Gyro Copter HQ Limited | Information & communication | 2019 |
| H Platt & Sons (Leftwich) Limited | Agriculture & fishing | 1952 |
| H&Fj Ltd | Health & social care | 2019 |
| H.F.S. Tarporley Estates Limited | Real estate | 2020 |
| H.F.S. Tarporley Limited | Wholesale & retail | 2002 |
| Halewood Oaks Resident Management Company Limited | Households | 2023 |
| Hanley Chesworth Limited | Administrative & support | 1959 |
| Harclay Park Management Company Limited | Households | 2022 |
| Hardings Wood (Kidsgrove) Residents Management Company Limited | Households | 2021 |
| Harebell Meadows and Hartburn Grange Residents Management Company Limited | Households | 2022 |
| Haresfinch Ltd | Real estate | 2023 |
| Harmony Medics Limited | Professional & scientific | 2024 |
| Harpur Hill (Buxton) Residents Management Company Limited | Households | 2019 |
| Harrison Group Holdings Ltd | Professional & scientific | 2016 |
| Hartley Grange Management Company Limited | Households | 2020 |
| Hartshead View a Management Company Limited | Households | 2024 |
| Harvino Residents Management Company Limited | Households | 2023 |
| Haughton Medical Services Ltd | Health & social care | 2019 |
| Hawfinch Place Management Company Limited | Households | 2019 |
| Hawkwind Helicopters Limited | Transport & logistics | 2017 |
| Hawthorn Grove (Westham) Management Company Limited | Households | 2024 |
| Hawthorn Meadows (Residents) Management Company Limited | Households | 2025 |
| Hawthorn Park (Hempsted) Management Company Limited | Households | 2025 |
| Hawthorne Farm (Clitheroe) Management Company Limited | Households | 2023 |
| Hawtree Grove (Management Company) Limited | Households | 2019 |
| Hawtree Grove Apartments (Management Company) Limited | Households | 2024 |
| Hayfield Rise (West Lavington) Management Company Limited | Households | 2023 |
| Haygate Fields (Wellington) Estate Management Company Limited | Households | 2018 |
| HEA Romance Limited | Arts & recreation | 2017 |
| Headley Chase (Headley) Management Company Limited | Households | 2025 |
| Healthcare Talent Acquisition Ltd | Administrative & support | 2025 |
| Heatfocus Ltd. | Administrative & support | 2012 |
| Heathlands (Wakefield) Residents Management Company Limited | Households | 2022 |
| Heathlands RMC Limited | Households | 2019 |
| Hedge & Co. Ltd | Administrative & support | 2014 |
| Hedgerow Hospitality Ltd | Hospitality | 2026 |
| Heidi Limited | Extraterritorial | 2008 |
| Helena Smith Interiors Ltd | Construction | 2023 |
| Hempnan Limited | Real estate | 1988 |
| Hengari Limited | Construction | 2020 |
| Hero Electrical Limited | Construction | 2021 |
| Heron Limited | Extraterritorial | 1996 |
| HFS Delamere Limited | Agriculture & fishing | 2017 |
| HFS Highland Limited | Hospitality | 2013 |
| HFS Tarporley International Ltd | Real estate | 2021 |
| Hgcbar&Catering Ltd | Hospitality | 2026 |
| Hidden Beauty Consulting Limited | Other services | 2010 |
| High Brow HQ Limited | Other services | 2017 |
| High Gables (Pocklington) Residents Management Company Limited | Households | 2020 |
| Highfield Gardens (Trowbridge) Management Company Limited | Households | 2025 |
| Highwater Estates Ltd | Extraterritorial | 2013 |
| Hilary Major’S Services Ltd | Wholesale & retail | 2025 |
| Hill House Farm Cheshire Limited | Hospitality | 2013 |
| Hinchliffe Holmes (Northwich) Ltd | Real estate | 2023 |
| Hinchliffe Holmes Lettings & Mortgages Ltd | Households | 2020 |
| Hinchliffe Holmes Limited | Other services | 2013 |
| Historic Rally Car Register Limited | Arts & recreation | 1989 |
| Hiverley Management Company Ltd | Households | 2022 |
| HLB Financial Services Limited | Financial services | 1996 |
| Hollin B (Littleborough) Management Company Limited | Households | 2024 |
| Hollins Homes Newton Manco Limited | Real estate | 2019 |
| Hollins Marquees Limited | Administrative & support | 2003 |
| Hollysherbs Ltd | Wholesale & retail | 2024 |
| Honesty Foods Limited | Wholesale & retail | 2010 |
| Honey BEE Creches Ltd | Health & social care | 2012 |
| Honeyblush Limited | Other services | 2016 |
| Hooftrimming Ltd | Other services | 2006 |
| Hoppit Ltd | Information & communication | 2025 |
| Horizon Property Mgmt Ltd | Real estate | 2025 |
| Houlbrook Physiotherapy Limited | Health & social care | 2015 |
| Hound Dog RAW Food Supplies Ltd | Wholesale & retail | 2022 |
| House of Bathory Events Ltd | Administrative & support | 2024 |
| Howarth Travel Ltd | Administrative & support | 2025 |