| Homes R US (Kingsbridge) Limited | Administrative & support | 2012 |
| Homestead Heritage Ltd | Real estate | 2023 |
| Hope Barton Owners Association Limited | Hospitality | 1989 |
| Hope Cove Watersports Ltd | Arts & recreation | 2024 |
| Horsebrook Holdings Ltd | Real estate | 2022 |
| Horsecombe Management Company Limited | Households | 1992 |
| Howden Electrical Solutions Ltd | Construction | 2018 |
| HR Private Hire Taxi Ltd | Wholesale & retail | 2025 |
| Hungry GAP Productions Limited | Information & communication | 2016 |
| HUT on a Hill Limited | Arts & recreation | 2017 |
| Huti Energy Ltd | Construction | 2024 |
| Huti Ltd | Construction | 2002 |
| IAN Norton Carpentry and Building Ltd | Construction | 2017 |
| Ideal Diabetes CIC | Health & social care | 2020 |
| Identiti UK Training Ltd | Education | 2022 |
| Illuminate Devon Ltd | Construction | 2019 |
| Ilton Farm Campsite Ltd | Hospitality | 2018 |
| Ilton Farm Holdings Ltd | Transport & logistics | 2020 |
| IM Marketing Solutions Ltd | Administrative & support | 2015 |
| Infinite Horizons Global Limited | Real estate | 2017 |
| Ingeniiconnect Ltd | Transport & logistics | 2019 |
| Inner Hope Holdings Limited | Health & social care | 1997 |
| Innopsis Limited | Information & communication | 2021 |
| Intent Design Limited | Professional & scientific | 2013 |
| Invensys Engineering Limited | Professional & scientific | 2006 |
| Investigations 2026 Ltd | Information & communication | 2026 |
| Ionforge Labs Ltd | Information & communication | 2026 |
| IP & HP Ltd | Hospitality | 2025 |
| IPS Power Limited | Energy | 2009 |
| Island Cruising Club Limited | Arts & recreation | 1954 |
| Island Place Salcombe Limited | Households | 2018 |
| Island Street Deli Limited | Hospitality | 2019 |
| IT Workhouse Ltd | Information & communication | 2019 |
| Italian Import Export Ltd | Wholesale & retail | 2017 |
| J & M Transport Solutions Ltd | Transport & logistics | 2016 |
| J a Darke Holdings Limited | Financial services | 2019 |
| J B Property Development Limited | Construction | 2001 |
| J J a Stilwell Ltd | Professional & scientific | 2008 |
| J Lynch Evergreen Brands Limited | Professional & scientific | 2024 |
| J P Pringle Ltd | Construction | 2021 |
| J R - Marine Ltd | Transport & logistics | 2020 |
| J&Sp Ltd | Real estate | 2024 |
| J.A. Darke Limited | Agriculture & fishing | 1948 |
| J.K. & J. Ireland (Cottage Hotel) Limited | Hospitality | 1975 |
| Jagle Holdings Limited | Financial services | 2016 |
| JAM Factory Productions Limited | Information & communication | 2003 |
| JAM on Top Limited | Wholesale & retail | 2023 |
| James Cording & Co Limited | Professional & scientific | 2002 |
| James Moncrieff Contracting Ltd | Professional & scientific | 2024 |
| Jarvco Ltd | Construction | 2005 |
| JC Offshore Solutions Limited | Other services | 2014 |
| Jcos Defence Limited | Public administration | 2025 |
| Jcos Energy Limited | Energy | 2023 |
| JDC Pubs Ltd | Hospitality | 2024 |
| Jephson & Co Limited | Agriculture & fishing | 1967 |
| Jeremy Wright Ltd | Construction | 2011 |
| Jeweller Solutions Group Ltd | Financial services | 2020 |
| Jinja Finance Ltd | Real estate | 2006 |
| JLD Consultancy Services Limited | Professional & scientific | 2019 |
| JM Collection Limited | Financial services | 2025 |
| JMH Luxury Advisory Ltd | Wholesale & retail | 2023 |
| Joanna Tucker Interiors Ltd | Professional & scientific | 2022 |
| JOE Owen Design Ltd | Households | 2023 |
| John Baxter Developments Limited | Wholesale & retail | 1973 |
| Justinproperty Ltd | Real estate | 2007 |
| K M Langman Decorators Limited | Construction | 2002 |
| K-Tec Electrical & Automation Limited | Construction | 2023 |
| K.E.J.G Ltd | Information & communication | 2010 |
| K.F.T Renewables Limited | Construction | 2014 |
| KAC Property Developments Limited | Real estate | 2024 |
| Kaikoura Design Ltd | Professional & scientific | 2019 |
| Kaikoura Lighting Ltd | Professional & scientific | 2026 |
| Kajoha Limited | Real estate | 2025 |
| Kamart Limited | Health & social care | 2013 |
| Kara Hook Designs Limited | Professional & scientific | 2017 |
| Kasekeamalgamatedbusinesssolutions Limited | Information & communication | 2025 |
| Kate Michaels Private Chef Ltd | Hospitality | 2023 |
| KD Plant Hire Limited | Construction | 2005 |
| Kdsg Properties Ltd | Real estate | 2019 |
| Keith White Plumbing Services Ltd | Construction | 2013 |
| Keith Wingate Building Ltd | Construction | 2017 |
| Keynvor Subsea Ltd | Manufacturing | 2015 |
| Kikhu Ltd | Wholesale & retail | 2025 |
| Killpro Ltd | Administrative & support | 2020 |
| Kimberley Nurseries Limited | Wholesale & retail | 2023 |
| King Henry's Road Residents' Association Limited | Households | 1970 |
| Kingprint (Kingsbridge) Limited | Wholesale & retail | 1993 |
| Kingsbridge & District Light Railway Company Ltd | Arts & recreation | 2015 |
| Kingsbridge Agricultural and Horticultural Society Limited | Administrative & support | 2008 |
| Kingsbridge Air Conditioning Ltd | Construction | 2018 |
| Kingsbridge and Saltstone Caring Ltd | Other services | 2006 |
| Kingsbridge Automatics Limited | Administrative & support | 2002 |
| Kingsbridge Chiropody Limited | Health & social care | 2005 |
| Kingsbridge Community Garden | Agriculture & fishing | 1999 |
| Kingsbridge Electrical Services Ltd | Construction | 2011 |
| Kingsbridge Funeral Directors Limited | Other services | 2018 |
| Kingsbridge Grocers Ltd | Wholesale & retail | 2023 |
| Kingsbridge Mahabharat Limited | Hospitality | 2016 |
| Kingsbridge OUT of School Club C.I.C. | Education | 2026 |
| Kingsbridge Park Community Tennis CIC | Arts & recreation | 2017 |