| Go Eco Cabs Ltd | Transport & logistics | 2019 |
| Gone Wild Limited | Arts & recreation | 2003 |
| Greenfields Consulting Limited | Professional & scientific | 2006 |
| H Formulations Ltd | Manufacturing | 2015 |
| H. & H.E.Davey (Bristol) Limited | Real estate | 1962 |
| Hair of the Dog Brewery Ltd | Manufacturing | 2026 |
| Hair of the Dog Hospitality Ltd | Hospitality | 2026 |
| Hayes Court (Lyme Regis) Limited | Households | 1983 |
| Herbies Lyme Regis Ltd | Hospitality | 2022 |
| Highcliff House (Management) Limited | Households | 2011 |
| Industry Control Solutions Limited | Construction | 1995 |
| Inspired Homes & Developments Ltd | Real estate | 2025 |
| Inspired Homes (SW) Ltd | Real estate | 2025 |
| J M Newman Ltd | Professional & scientific | 2020 |
| J.D.Strachan Consulting Ltd | Professional & scientific | 2024 |
| J.S.C. Equine Laboratory Limited | Real estate | 2000 |
| Jack of ALL Shades Limited | Real estate | 2012 |
| James Maunder NDT Ltd | Professional & scientific | 2025 |
| Jane Heaton Associates Ltd | Other services | 2015 |
| Jessica Wylie Limited | Information & communication | 2015 |
| JN Lewis Property Ltd | Real estate | 2025 |
| John Buckley Limited | Professional & scientific | 1983 |
| John Plinston Limited | Professional & scientific | 1982 |
| Jon's Brewery Limited | Manufacturing | 2012 |
| JSC Properties (South West) Limited | Real estate | 2002 |
| Julia CHI Ltd | Other services | 2019 |
| Jurassic Cards Ltd | Wholesale & retail | 2022 |
| Jurassic Holidays Ltd | Real estate | 2018 |
| Jurassic Property & Lettings Ltd | Real estate | 2020 |
| Just Create (Europe) Ltd | Professional & scientific | 2017 |
| Jusy Limited | Administrative & support | 2008 |
| Keeley Windows Limited | Construction | 2003 |
| KJD Software Consultancy Limited | Information & communication | 1997 |
| Klong Sounds Ltd | Professional & scientific | 2022 |
| Koffie at Limited | Hospitality | 2025 |
| L.F. Webb & Partner Limited | Professional & scientific | 2006 |
| Landslide Limited | Real estate | 1999 |
| Largigi Limited | Hospitality | 2009 |
| Lathey Holdings Ltd | Information & communication | 2026 |
| Launchycroft Residents Limited | Households | 2011 |
| Legal Claims Hub Ltd | Information & communication | 2024 |
| Limlyme Ltd | Real estate | 2024 |
| Listed Building Consultants Ltd | Professional & scientific | 2021 |
| Little Green Change Ltd | Professional & scientific | 2023 |
| Littler Living Limited | Real estate | 2023 |
| Ll&Associates Limited | Other services | 2021 |
| Love Lyme Regis Limited | Information & communication | 2019 |
| Lrdt Property Management Limited | Real estate | 2006 |
| Lyme Bay Brewing Limited | Manufacturing | 2007 |
| Lyme Bay Court Management Limited | Households | 2024 |
| Lyme Bay Foods Limited | Hospitality | 2023 |
| Lyme Bay Fudge Company Limited | Wholesale & retail | 2025 |
| Lyme Bay Radio CIC | Information & communication | 2024 |
| Lyme Green Construction & Development Ltd | Construction | 2023 |
| Lyme Green Electrical & Mechanical Ltd | Construction | 2023 |
| Lyme Haven Limited | Hospitality | 2026 |
| Lyme M&A Ltd | Hospitality | 2025 |
| Lyme Regis (Philpot) Museum Shop Limited | Wholesale & retail | 1994 |
| Lyme Regis (Philpot) Museum Trust Limited | Arts & recreation | 1993 |
| Lyme Regis CLT Limited | Construction | 2014 |
| Lyme Regis Development Trust | Professional & scientific | 1998 |
| Lyme Regis Festivals | Arts & recreation | 2015 |
| Lyme Regis Foodbank CIC | Other services | 2016 |
| Lyme Regis Fossil Festival Community Interest Company | Education | 2024 |
| Lyme Regis Takeaway Ltd | Hospitality | 2023 |
| Lyme Splash Limited | Arts & recreation | 2016 |
| Lymebourn Property Ltd | Real estate | 2023 |
| Lymelife Technology Limited | Professional & scientific | 2007 |
| Lymeswood Ltd | Real estate | 2026 |
| M J Eagland Limited | Arts & recreation | 2002 |
| M M Marine Ltd | Transport & logistics | 1992 |
| Marie Amesbury Ltd | Real estate | 2025 |
| Mary Anning Management Co Ltd | Households | 2019 |
| Matthew Glenn Limited | Information & communication | 2018 |
| Maxology Limited | Information & communication | 2001 |
| Mews Property Southwest Ltd | Real estate | 2017 |
| MI Amor Mija Ltd | Wholesale & retail | 2022 |
| Miiquant Ltd | Information & communication | 2022 |
| Mike Ebdon Electrical Contractor Limited | Construction | 2002 |
| Molesworth and Bird Ltd | Wholesale & retail | 2017 |
| More to Business Limited | Wholesale & retail | 2005 |
| Morwenna Limited | Households | 2022 |
| Mostyn Productions Limited | Information & communication | 2003 |
| MSE Carpentry & Building Services Limited | Construction | 2014 |
| Msrj Cinvest Ltd | Professional & scientific | 2025 |
| MW Formwork Ltd | Construction | 2026 |
| N & G Plant Hire Ltd | Administrative & support | 2022 |
| Nature's Blueprint CIC | Professional & scientific | 2025 |
| Neat Training Limited | Education | 2020 |
| Nmaneth Ltd | Wholesale & retail | 2020 |
| Nordic Shores Limited | Wholesale & retail | 2017 |
| OLI5 Ltd | Wholesale & retail | 2020 |
| One Girl Productions Limited | Professional & scientific | 2003 |
| Ostler South West Ltd | Real estate | 2014 |
| Outside the Box (UK) Ltd | Manufacturing | 2014 |
| P & R Wason Fishing Limited | Agriculture & fishing | 2017 |
| P.A Disco Hire LLP | | 2013 |
| Paper Bird Designs Ltd | Wholesale & retail | 2023 |
| Paradigm Evolution Limited | Professional & scientific | 2011 |
| Parenting Publishing Limited | Information & communication | 2012 |