| THE Hooting OWL Distillery Ltd | Manufacturing | 2018 |
| THE Hospitality Junior Board C.I.C. | Administrative & support | 2025 |
| THE House of Langos Ltd | Hospitality | 2022 |
| THE House on the Hill Hawes Ltd | Hospitality | 2026 |
| THE Hovingham Inn Ltd | Hospitality | 2019 |
| THE Human Givens Wellbeing Company Ltd | Health & social care | 2026 |
| THE Husthwaite Orchard Village Limited | Manufacturing | 2009 |
| THE HUT Dog Grooming Ltd | Wholesale & retail | 2025 |
| THE HUT York Limited | Other services | 2011 |
| THE Hydratory Ltd | Wholesale & retail | 2025 |
| THE Hype Group Limited | Administrative & support | 2024 |
| THE Hyperthyroid Cat Centre Limited | Professional & scientific | 2013 |
| THE Ican Academy Ltd | Professional & scientific | 2012 |
| THE Icecream Factory Limited | Manufacturing | 2009 |
| THE Inclusion Gateway Ltd | Professional & scientific | 2025 |
| THE Independent EHO Ltd | Hospitality | 2018 |
| THE Indie Gift Card Co. Ltd | Professional & scientific | 2023 |
| THE Information Brewery Limited | Extraterritorial | 1996 |
| THE Innate Coach Ltd | Education | 2025 |
| THE Insolvency Trust Limited | Financial services | 2017 |
| THE Institute of Conflict Management | Other services | 2000 |
| THE International Neurotherapy Centre Limited | Health & social care | 1994 |
| THE Island N1 | Health & social care | 2006 |
| THE JAM Factory Studios Limited | Real estate | 2010 |
| THE James Bond International FAN Club Limited | Other services | 2000 |
| THE Japanese Print Shop Limited | Wholesale & retail | 2015 |
| THE Jewel Box Limited | Extraterritorial | 2022 |
| THE Jewel Gallery Limited | Extraterritorial | 2004 |
| THE Jewel House Limited | Extraterritorial | 2024 |
| THE Joseph Rowntree Reform Trust Limited | Other services | 1939 |
| THE Joseph Rowntree Theatre Limited | Arts & recreation | 2003 |
| THE Jrsst Charitable Trust | Other services | 2025 |
| THE Jules Verne (Huddersfield) Limited | Hospitality | 2016 |
| THE Just Apparel Ltd | Wholesale & retail | 2025 |
| THE Karen Hill Tribes Trust | Health & social care | 2002 |
| THE Kebab Okis Ltd | Hospitality | 2025 |
| THE Keep (York) Limited | Construction | 2012 |
| THE Kerfield Arms Limited | Hospitality | 2024 |
| THE Keto Shop Ltd | Wholesale & retail | 2023 |
| THE Keyes Management Company Limited | Households | 2016 |
| THE Kitchen Osbaldwick Ltd | Hospitality | 2019 |
| THE Lady Elizabeth Hastings' Charities Trustee Limited | Real estate | 2011 |
| THE Lamp Restaurant Limited | Hospitality | 2005 |
| THE Lancashire and Yorkshire Reversionary Interest Company Limited | Financial services | 1884 |
| THE Land Farm and Property Consultancy Ltd | Real estate | 2024 |
| THE Land Haxby CIC | Education | 2024 |
| THE Landings (Waddington) Residents Management Company Limited | Real estate | 2020 |
| THE Landscape Enterprise Networks Company Limited | Professional & scientific | 2024 |
| THE Lascelles Stud Limited | Real estate | 2024 |
| THE Last Breath Film Company Limited | Information & communication | 2022 |
| THE Last Supper (Yorkshire) Limited | Hospitality | 2017 |
| THE Launchpad York CIC | Hospitality | 2025 |
| THE Laurels (Barlby) Management Company Limited | Households | 2019 |
| THE Lavender Food Company Limited | Manufacturing | 2003 |
| THE Lawn MAN (York) Limited | Administrative & support | 2009 |
| THE Lean Insight Consultancy Limited | Professional & scientific | 2013 |
| THE Learning Specialists Ltd | Education | 2020 |
| THE Leaseholders of 1 to 4 Marcus ST Ltd | Households | 2015 |
| THE Leeman Rose Ltd | Hospitality | 2013 |
| THE Lennox Group Limited | Real estate | 2018 |
| THE Lighthorseman Limited | Hospitality | 2023 |
| THE Limes York Limited | Hospitality | 2025 |
| THE Little Big Food Company Limited | Wholesale & retail | 2000 |
| THE Little Celebration Company Limited | Wholesale & retail | 2017 |
| THE Little Coffee Cart Limited | Hospitality | 2019 |
| THE Little Jewellery Company Limited | Wholesale & retail | 2025 |
| THE Little Kingston Company Limited | Hospitality | 2001 |
| THE Little Marketing Company Limited | Professional & scientific | 2019 |
| THE Little Norfolk Farm Ltd | Wholesale & retail | 2021 |
| THE Little Sewing Factory Ltd | Wholesale & retail | 2021 |
| THE Live Collective Ltd | Arts & recreation | 2023 |
| THE Lodge (Sketchley) Management Company Limited | Households | 2025 |
| THE Lodge Management Company (York) Limited | Households | 1996 |
| THE Londesborough Arms Limited | Hospitality | 2013 |
| THE Longlands Middlesbrough Ltd | Hospitality | 2012 |
| THE Lowther (York) Limited | Wholesale & retail | 2008 |
| THE Luxe Trading Company Limited | Wholesale & retail | 2015 |
| THE M.O.T. Shop (York) Ltd | Wholesale & retail | 2007 |
| THE Magical Transformation Store Ltd | Wholesale & retail | 2025 |
| THE Main Company (York ) Limited | Manufacturing | 2013 |
| THE Main Furniture Company Limited | Manufacturing | 2013 |
| THE Maltings (Boroughbridge) Management Limited | Households | 2005 |
| THE Maltings (York) Limited | Hospitality | 2009 |
| THE Manfreds Limited | Information & communication | 1995 |
| THE Manor House (Lfcv) Limited | Health & social care | 2005 |
| THE Manor House Estate Bawdsey (Management) Limited | Hospitality | 2006 |
| THE Maples (Cressing) Residents Management Company Limited | Households | 2023 |
| THE Maples (NGP) Management Company Limited | Real estate | 2021 |
| THE Maples (Weston) Residents Management Company Limited | Households | 2022 |
| THE Maritime Consortium Limited | Professional & scientific | 2014 |
| THE Martin Bell Partnership Limited | Information & communication | 2012 |
| THE Maslow Wellness Centre Limited | Health & social care | 2025 |
| THE Menopause Health Coach Limited | Health & social care | 2025 |
| THE Mews Concept Limited | Construction | 2026 |
| THE MHI Group Limited | Financial services | 2016 |
| THE Mile-Farm Shop Limited | Wholesale & retail | 2010 |
| THE Milner Method Ltd | Arts & recreation | 2018 |
| THE Minster Clinic Ltd | Health & social care | 2016 |
| THE Mission Hall Hornsea Limited | Real estate | 2019 |
| THE MIX Marketing and Management Limited | Arts & recreation | 2014 |