| GPG Developments Ltd | Construction | 2016 |
| GPG Projects Limited | Construction | 2017 |
| Grace for Hong Limited | Hospitality | 2022 |
| Granite That Works Limited | Construction | 2021 |
| Gratefulhomes Ltd | Real estate | 2021 |
| Gravel Limited | Households | 1997 |
| Greenhayes Property Investments Ltd | Real estate | 2017 |
| Greg Cundill Limited | Manufacturing | 2018 |
| Greyhound Country Inn Limited | Hospitality | 2013 |
| Grindstone Architectural Design Ltd. | Professional & scientific | 2015 |
| Guardian Angel Consulting Ltd | Professional & scientific | 2025 |
| H & H Farmers Limited | Hospitality | 1997 |
| H & H Said LLP | | 2023 |
| H-Man Ltd | Hospitality | 2025 |
| Ha&Ka SW Ltd | Hospitality | 2026 |
| Halo Horizon Healthcare Ltd | Public administration | 2022 |
| Hamilton Ecology Ltd | Professional & scientific | 2023 |
| Haptix Golf Limited | Manufacturing | 2026 |
| Harlew Marketplace Ltd | Wholesale & retail | 2023 |
| Harrington Scaffolding (Holding) Limited | Financial services | 2020 |
| Harrington Scaffolding Limited | Construction | 2016 |
| Harts of Honiton Holdings Limited | Financial services | 2024 |
| Harts of Honiton Ltd | Wholesale & retail | 1985 |
| Harvey & Wade Limited | Wholesale & retail | 2007 |
| HBH Electrical Limited | Construction | 2012 |
| Headon Construction Limited | Construction | 2018 |
| Headon Property Developments Limited | Real estate | 2025 |
| Health Energetics Ltd | Manufacturing | 2011 |
| Heart Felt Trauma Therapy CIC | Education | 2010 |
| Heart Synergy Ltd | Education | 2019 |
| Heathfield (Honiton) Management Company Limited | Professional & scientific | 2015 |
| Heathpark Commercials Ltd | Wholesale & retail | 1998 |
| Heathpark Garage Limited | Wholesale & retail | 2003 |
| Hembury Home Improvements Ltd | Construction | 2023 |
| Hembury Marketing Ltd | Professional & scientific | 2025 |
| Henza’S Corner Shop Ltd | Wholesale & retail | 2025 |
| Heron Ventures Ltd | Agriculture & fishing | 2018 |
| HF Hospitality Ltd | Professional & scientific | 2025 |
| Higher Leyhill Management Company Limited | Households | 2018 |
| Highfield Garage (Dunkeswell) Limited | Wholesale & retail | 2005 |
| Highley Farm Limited | Agriculture & fishing | 2023 |
| Hilltop Performance Trucks Limited | Wholesale & retail | 2001 |
| Hillview Floristry Ltd | Wholesale & retail | 2006 |
| Hlbs Investments Limited | Construction | 2017 |
| Hockney Stevens Consultants Limited | Financial services | 2015 |
| Homestead Fencing Ltd | Construction | 2025 |
| Honiton Business Network CIC | Administrative & support | 2025 |
| Honiton Chiropractic Clinic Ltd | Health & social care | 2021 |
| Honiton Community Complex | Arts & recreation | 2013 |
| Honiton Golf Club Limited | Arts & recreation | 2014 |
| Honiton Gymnastics Club CIC | Arts & recreation | 2019 |
| Honiton Hardware Ltd | Wholesale & retail | 2024 |
| Honiton Littletown Primary Academy Trust | Education | 2011 |
| Honiton Plumbing and Heating Services Limited | Other services | 2012 |
| Honiton Pottery Limited | Real estate | 2007 |
| Honiton RFC Ltd | Arts & recreation | 2023 |
| Honiton Rugby Club Trading Ltd | Hospitality | 2023 |
| Honiton Scaffolding Ltd. | Wholesale & retail | 2006 |
| Honiton Spa & Hot Tubs Limited | Wholesale & retail | 2019 |
| Honiton Spice Ltd | Hospitality | 2023 |
| Honiton Sports Limited | Wholesale & retail | 2025 |
| Honiton Storage Solutions Limited | Transport & logistics | 2024 |
| Honiton Tile & Bathroom Ltd | Wholesale & retail | 2021 |
| Hornabrook Resources Limited | Agriculture & fishing | 1997 |
| Horses Wholesale Limited | Wholesale & retail | 2025 |
| House of Gwilym Ltd | Professional & scientific | 2025 |
| Howlett Investments Ltd | Real estate | 2018 |
| Hp-Worx Ltd | Wholesale & retail | 2020 |
| HQ Cross Border Services Ltd | Professional & scientific | 2012 |
| Humantix People Solutions Ltd | Administrative & support | 2026 |
| Humberts Devon Ltd | Real estate | 2020 |
| Hungry Heart Ltd | Hospitality | 2021 |
| I & J Stanford Limited | Financial services | 2009 |
| Iaii Ltd | Hospitality | 2025 |
| Ibiza Burger Ltd | Hospitality | 2020 |
| ICT Infrastructure Consulting Limited | Information & communication | 2016 |
| ICT Infrastructure Solutions Limited | Extraterritorial | 2011 |
| Ideal Interiors Limited | Construction | 2000 |
| Imagetek Systems Limited | Information & communication | 1992 |
| Impactdraw CIC | Information & communication | 2025 |
| Impulse Cleaning Solutions Ltd | Administrative & support | 2023 |
| Inhouse IT Ltd | Professional & scientific | 2021 |
| Inochi Onelife Care Limited | Administrative & support | 2014 |
| Inspect and Deliver Ltd | Transport & logistics | 2024 |
| Install Technologies Ltd | Information & communication | 2005 |
| Instone Analytics Ltd | Information & communication | 2024 |
| Integrum Solutions Ltd | Information & communication | 2021 |
| Intellaris Limited | Information & communication | 2025 |
| Iolaus Ltd | Information & communication | 2004 |
| Ipswich Property Company Limited | Real estate | 2017 |
| ISV GTM Limited | Information & communication | 2023 |
| ITS Planners and Engineers (UK) Limited | Information & communication | 2011 |
| J Lawes Consulting Limited | Professional & scientific | 2020 |
| J M Glass Limited | Construction | 2015 |
| J Stevens Contracting Ltd | Other services | 2023 |
| J Walker Podiatry Ltd | Other services | 2023 |
| J&N Couriers Limited | Transport & logistics | 2026 |
| Jack Lamburn Design Limited | Professional & scientific | 2014 |
| Jack of Arts Ltd | Arts & recreation | 2019 |
| James Yarrow Limited | Wholesale & retail | 2024 |