| GLO Renewables Ltd | Construction | 2023 |
| Globalteer | Administrative & support | 2006 |
| Gloforce Ltd | Wholesale & retail | 2015 |
| GMR Consulting Limited | Administrative & support | 2002 |
| Golden Buddha Centre Limited | Other services | 1998 |
| Gorse Properties Limited | Construction | 2006 |
| Gosworthy Ltd | Wholesale & retail | 2014 |
| Grainoftruthdevon Ltd | Manufacturing | 2019 |
| Granola FAN Club Ltd | Manufacturing | 2024 |
| Grateful Threads Ltd | Wholesale & retail | 2022 |
| Green and Daughters Limited | Hospitality | 2025 |
| Green and Daughters Rooms Limited | Hospitality | 2026 |
| Green Bird Workshop Ltd | Construction | 2025 |
| Green Witch Botanicals Ltd | Wholesale & retail | 2025 |
| Greenaway Recycling (S.W.) Limited | Water & waste | 2020 |
| Greenaway Recycling Limited | Water & waste | 2006 |
| Greenearth Landscape Architects Limited | Professional & scientific | 2024 |
| Greenfibres Limited | Wholesale & retail | 1994 |
| Greenfields Recycling & Salvage Ltd | Wholesale & retail | 2021 |
| Greenhaven Properties Ltd | Real estate | 2021 |
| Greenheart Design Limited | Professional & scientific | 1998 |
| Greenheart Trading Ltd | Professional & scientific | 2010 |
| Greenlife Limited | Wholesale & retail | 1989 |
| Greenslade Blackawton Management Company Ltd | Households | 2023 |
| Gripstone Driveway Limited | Households | 2014 |
| Grocycle Courses CIC | Education | 2015 |
| Gryphon Risk Management Limited | Administrative & support | 2023 |
| GST Carpentry and Joinery Limited | Construction | 2012 |
| Guilfoyle Partnership LLP | | 2021 |
| Gulley Independant Traders Limited | Construction | 2000 |
| GUN House LLP | | 2013 |
| Gustare Ltd | Financial services | 2015 |
| H E Phillips Limited | Wholesale & retail | 2023 |
| H&R Canine Services Ltd | Other services | 2025 |
| Hadley Ltd | Wholesale & retail | 2021 |
| Hailski Sports Limited | Administrative & support | 2010 |
| Half Moon Community CIC | Agriculture & fishing | 2024 |
| Hallam & Hallam Ltd | Real estate | 2020 |
| Halse Property Ltd | Real estate | 2013 |
| Harberton and Harbertonford Community Land Trust CIC | Construction | 2012 |
| Harbertonford Mill Management Limited | Real estate | 2015 |
| Harbour Mediation Limited | Other services | 2026 |
| Harbourne Consulting Ltd | Professional & scientific | 2025 |
| Harbourne Mill Management Ltd | Households | 2022 |
| Harbourside Construction (SW) Limited | Construction | 2005 |
| Harcombe Asset Management Limited | Real estate | 2012 |
| Hardrock Resin Flooring Limited | Construction | 2025 |
| Hardy Marine Solutions Ltd. | Professional & scientific | 2016 |
| Harper ED Ltd | Education | 2026 |
| Harrison Sutton Partnership LLP | | 2001 |
| Hart Flyshop Ltd | Wholesale & retail | 2006 |
| Harts Sporting Ltd | Arts & recreation | 2014 |
| Hatchlands Farm Limited | Agriculture & fishing | 2025 |
| Hawke House Studios Ltd | Wholesale & retail | 2014 |
| Hawkes Way Residents Limited | Households | 2022 |
| Head Food Ltd | Extraterritorial | 2019 |
| Healthsource Totnes Community Interest Company | Health & social care | 2024 |
| Hearth Herbal Ltd | Wholesale & retail | 2026 |
| Hearthought Enterprises Ltd | Professional & scientific | 2011 |
| Heath Way West Ltd | Households | 2008 |
| Heatshrink Solutions Limited | Wholesale & retail | 2003 |
| Hedge-U-Cation C.I.C. | Education | 2017 |
| Hedgerow and Dandelion Ltd | Manufacturing | 2024 |
| Hedgespoken Ltd | Information & communication | 2017 |
| Heedra Limited | Professional & scientific | 2017 |
| Hempstone Park Limited | Real estate | 2025 |
| Hempstone Park Management Company Limited | Real estate | 1993 |
| Hems Orchard Limited | Financial services | 2017 |
| Henrys Bar Ltd | Hospitality | 2024 |
| Hepburn House Consulting Ltd | Professional & scientific | 2017 |
| Heritage Operations Processing Limited | Wholesale & retail | 2010 |
| Hernaford Barns Management Limited | Real estate | 2014 |
| Hidden Cottage Services Ltd | Information & communication | 2026 |
| Hiddencoves Ltd | Arts & recreation | 2024 |
| High House Property Ltd | Construction | 2023 |
| Higher Bowden Estates Limited | Real estate | 2016 |
| Higher Bowden Holiday Cottages Limited | Information & communication | 2003 |
| Higher Dreyton Investments Limited | Real estate | 2018 |
| Higher Heathfield Management Company Limited | Households | 2000 |
| Higher Hutcherleigh Farms Limited | Agriculture & fishing | 2022 |
| Higher Poulston Farm Management Company Limited | Households | 2015 |
| Higher Torr Farm Management Company Limited | Households | 2019 |
| Hindedesigns Limited | Real estate | 2025 |
| HK Helen Kennedy Ltd | Information & communication | 2023 |
| Holben Consulting Ltd | Professional & scientific | 2019 |
| Holly Keeling Interiors Limited | Professional & scientific | 2022 |
| Holsome Park Enterprises Limited | Real estate | 2020 |
| Holsome Park Limited | Agriculture & fishing | 2020 |
| Holy Brook Meadows CIC | Education | 2015 |
| Home Farm Estates Limited | Real estate | 1983 |
| Home Farm Properties Limited | Real estate | 1995 |
| Honey BEE Bespoke Properties Limited | Financial services | 2021 |
| Hood Springs LLP | | 2024 |
| Hopetown Limited | Households | 1988 |
| Hopwood and Swallow Limited | Professional & scientific | 1989 |
| Hopwood Swallow LLP | | 2008 |
| Horizon Building Surveyors Ltd. | Professional & scientific | 2008 |
| Howkins Farm (Compton) Limited | Agriculture & fishing | 1976 |
| Hpdalton Limited | Information & communication | 2025 |
| HR Solutions Hub Ltd | Professional & scientific | 2019 |