| Frontside Clothing (Lyme Regis) Ltd | Wholesale & retail | 2020 |
| Fruits of the Earth Limited | Wholesale & retail | 2009 |
| Furleigh Estate (Winery) Ltd | Manufacturing | 2011 |
| G Brooks Plant Hire Ltd | Construction | 2023 |
| G Heather Agricultural Ltd | Extraterritorial | 2014 |
| G J Prowse Property Renovations Ltd | Construction | 2011 |
| G Martin Windows Limited | Construction | 2015 |
| G.England Building Ltd | Construction | 2023 |
| Gardener and Young Limited | Construction | 2017 |
| Gareth Edwards Farming Ltd | Agriculture & fishing | 2025 |
| Gavin Dixon Finance Solutions Limited | Financial services | 2013 |
| Gear 2 Ride Ltd | Wholesale & retail | 2024 |
| Gemma's Flowers Ltd | Wholesale & retail | 2002 |
| Generate Green Ltd | Construction | 2011 |
| Genesis Collective Ltd | Information & communication | 2022 |
| Gentle Beauty Co Ltd | Wholesale & retail | 2001 |
| George's Folks Limited | Real estate | 2014 |
| George’S Bakery Ltd | Hospitality | 2021 |
| Gillinghams Independent Financial Advisers Limited | Financial services | 2011 |
| GJ Agri Limited | Agriculture & fishing | 2014 |
| Global Art Acquisitions and Investments Ltd | Wholesale & retail | 2018 |
| Global Trade Tracker Limited | Information & communication | 2015 |
| Gloucester Crescent Management Limited | Extraterritorial | 2004 |
| Godwin Hospitality Ltd | Hospitality | 2025 |
| Goldcombe (Dorset) LLP | | 2022 |
| Golden CAP Developments Ltd | Real estate | 2026 |
| Golf Butler Sims Ltd | Wholesale & retail | 2024 |
| Good Books and Services Limited | Wholesale & retail | 2000 |
| Goodens Hill Management Company Limited | Households | 2005 |
| Goose and Badger Limited | Hospitality | 2021 |
| Gore Cross Ltd | Financial services | 2026 |
| Gorilla Packaging Limited | Manufacturing | 2017 |
| Gorwell Barn Events Ltd | Hospitality | 2018 |
| Graham Moody Associates Limited | Construction | 1997 |
| Grant Brooks Plant Hire Ltd. | Administrative & support | 1984 |
| Greenham Ltd | Administrative & support | 2011 |
| Greenlink Groundworks Ltd | Construction | 2015 |
| Greenside Cars Limited | Wholesale & retail | 2007 |
| Grounded LAB Ltd | Agriculture & fishing | 2025 |
| Grow Paradise Ltd | Wholesale & retail | 2022 |
| Guangzhou Qiyun Trading Co., Ltd. | Administrative & support | 2021 |
| GUY Crabb Plumbing & Heating Limited | Construction | 1999 |
| H Leaf and Co Ltd | Construction | 2024 |
| H. Bonsall Electrical Services Limited | Manufacturing | 2006 |
| H. Leaf & SON Limited | Construction | 1975 |
| H.W.Keil,Limited | Real estate | 1950 |
| Hair Twenty Two Limited | Other services | 2022 |
| Hallett Developments Ltd | Construction | 2019 |
| Hallett Property Limited | Real estate | 2018 |
| Hallmark Windows (South West) Limited | Construction | 2009 |
| Hammams UK Ltd | Wholesale & retail | 2021 |
| Hammiton LLP | | 2019 |
| Hamsfield Ltd | Construction | 2020 |
| HANDY2HAVE Building Services Limited | Construction | 2025 |
| Hangers Dairy Limited | Wholesale & retail | 2011 |
| Hannah Court Management Co. Limited | Households | 1986 |
| Hannah Wilson Ltd | Hospitality | 2012 |
| Hansford Construction Ltd | Construction | 2003 |
| Hansford Plant Hire Unlimited | Administrative & support | 2021 |
| Happy Hamster Media Limited | Information & communication | 2018 |
| Harbour Garages (Bridport) Limited | Hospitality | 1972 |
| Hardown Ltd | Information & communication | 2020 |
| Hartleys Accountancy Limited | Professional & scientific | 2015 |
| Hartleys Enterprises Limited | Extraterritorial | 2022 |
| Harvey Anderson Hair Limited | Other services | 2016 |
| Harveys Close Management Company Limited | Hospitality | 1993 |
| Hav-R Group Ltd | Real estate | 2025 |
| Hazel Hill Trust | Education | 2014 |
| Hbmm Limited | Hospitality | 2015 |
| HD Hydro Ltd | Professional & scientific | 2021 |
| Heather Holdings Ltd | Financial services | 2016 |
| Heavenly Labs Ltd | Professional & scientific | 2020 |
| Heaver Bespoke Solutions Ltd | Financial services | 2021 |
| Hedway Fencing and Groundworks Ltd | Construction | 2018 |
| Helderlove Ltd | Real estate | 2020 |
| Helier Properties Ltd | Real estate | 2021 |
| Henry Newbery and Co.Limited | Manufacturing | 1930 |
| Henry's Beard Crew Catering Ltd | Hospitality | 2018 |
| Herben EP Ltd | Professional & scientific | 2022 |
| Heron Farm Devon Ltd | Agriculture & fishing | 2025 |
| Heskwell Limited | Households | 2000 |
| Hevans NG Ltd | Information & communication | 2019 |
| Hi-Tech Resourcing Limited | Manufacturing | 2017 |
| High Ground Investments Ltd | Financial services | 2022 |
| High Tide PUB Co Ltd | Hospitality | 2020 |
| Hinton Hideaways LLP | | 2017 |
| Historic Hostelries Limited | Hospitality | 2003 |
| Hogchester Glamping Ltd | Hospitality | 2024 |
| Holcot Limited | Arts & recreation | 2021 |
| Honeysuckle Cottage Ltd | Hospitality | 2006 |
| Hong Kong Gold Sea Trading Limited | Administrative & support | 2024 |
| Hooli Creations Ltd | Manufacturing | 2021 |
| House Lettings/B & B Ltd | Real estate | 2020 |
| Hoyt Limited | Information & communication | 2020 |
| Htpipe Alloy Limited | Manufacturing | 2021 |
| Hub Edit & Design Limited | Information & communication | 2011 |
| Huck Nets (U.K.) Limited | Manufacturing | 1996 |
| Hutton Scaffolding Ltd | Construction | 2023 |
| Hyde Cottages Orchard Walditch Management Limited | Households | 2011 |
| Hyde Warren Electrical Services Limited | Construction | 2019 |