| THE Lincolnshire Hamper Company Ltd | Hospitality | 2025 |
| THE Lincolnshire Poacher Inn Ltd | Hospitality | 2012 |
| THE Little Grange Consulting Limited | Professional & scientific | 2024 |
| THE Little Leisure Centre Limited | Administrative & support | 2024 |
| THE Little Pottery Studio Ltd | Wholesale & retail | 2015 |
| THE Little Red Gallery (Lincoln) Limited | Arts & recreation | 2013 |
| THE Little Red Gallery (Stamford) Ltd | Arts & recreation | 2017 |
| THE Little Woods Homes Ltd | Professional & scientific | 2025 |
| THE Lodge (Nettleham Road) Management Company Limited | Real estate | 1995 |
| THE Lodgings Ltd | Hospitality | 2018 |
| THE London Weight Clinic LLP | | 2018 |
| THE MAD Hatter's Teas & Curios Ltd | Wholesale & retail | 2017 |
| THE Marina Day Nursery Limited | Education | 1997 |
| THE Market Lounge (Lincoln) Limited | Hospitality | 2016 |
| THE Marketing Hubb Ltd | Professional & scientific | 2018 |
| THE Marshmallow Factory Limited | Manufacturing | 2020 |
| THE Marvellous Marquee Company Ltd | Other services | 2017 |
| THE Mentor Project C.I.C. | Health & social care | 2016 |
| THE Mews Management Company (Lincoln) Limited | Real estate | 2006 |
| THE Mindful MUG Ltd | Hospitality | 2025 |
| THE Moment Music Ltd | Information & communication | 2011 |
| THE Mood Lincoln Ltd | Hospitality | 2026 |
| THE Mulberry Nail Company Ltd | Other services | 2021 |
| THE Munchie Machine Ltd | Hospitality | 2025 |
| THE Music Tutor Limited | Education | 2004 |
| THE Mysterious Jeweller Ltd | Wholesale & retail | 2021 |
| THE Nail Fairy 55 Ltd | Other services | 2023 |
| THE Nedlon Ltd | Other services | 2020 |
| THE New Homes Agent Limited | Real estate | 2018 |
| THE New Windmill Limited | Wholesale & retail | 2006 |
| THE Newport Lark Management Company Limited | Households | 2011 |
| THE Noblerise Ltd | Wholesale & retail | 2026 |
| THE Nomad Trust | Health & social care | 2008 |
| THE Nomadic GP Limited | Health & social care | 2025 |
| THE Noworkclub Holdings Limited | Financial services | 2024 |
| THE Noworkclub Peterborough Limited | Arts & recreation | 2024 |
| THE Number 4 Group Limited | Education | 2010 |
| THE Nurture Garden Limited | Health & social care | 2019 |
| THE Oak at Scopwick Ltd | Hospitality | 2020 |
| THE Oak Clinic Limited | Health & social care | 2011 |
| THE Oaks Residents Management Company (Lincoln) Limited | Real estate | 2016 |
| THE Old Bakery Lincoln Limited | Hospitality | 2022 |
| THE Old Dairy (Pinchbeck) Management Company Ltd | Households | 2019 |
| THE Old Moorings Management Limited | Real estate | 2020 |
| THE Old Palace (Lincoln) Limited | Hospitality | 2011 |
| THE Old Print Works Management Company Limited | Households | 2012 |
| THE Old Vicarage Gibraltar Hill Management Ltd | Households | 2017 |
| THE Old Workshop Properties Limited | Real estate | 2018 |
| THE Olive Tree Hair Salon Ltd | Other services | 2023 |
| THE Olives Medical Services Limited | Health & social care | 2013 |
| THE Orders of ST. John Care Trust | Health & social care | 1995 |
| THE Original Cake Company Limited | Manufacturing | 2008 |
| THE Original Shed Company Ltd | Extraterritorial | 2006 |
| THE Orthopaedic Trauma Society | Health & social care | 2015 |
| THE Oven Charmer Ltd | Administrative & support | 2023 |
| THE Oxford and Cambridge Medical Company Ltd | Health & social care | 2015 |
| THE Oxfordshire Care Partnership | Health & social care | 2001 |
| THE Pain Partners LLP | | 2021 |
| THE Palms Collective Beauty Limited | Other services | 2025 |
| THE Palms Collective Ltd. | Other services | 2024 |
| THE Pavilion Management Company Limited | Real estate | 2007 |
| THE Payment People Ltd | Financial services | 2016 |
| THE Pebley Restaurant Ltd | Hospitality | 2015 |
| THE Peoples Practice Limited | Professional & scientific | 2026 |
| THE Peri Group Limited | Education | 2023 |
| THE Personnel Dept Management Consultancy Ltd | Professional & scientific | 2009 |
| THE Pickled Gherkin Limited | Hospitality | 2023 |
| THE Pioneer Trading (Lincs) Company Limited | Wholesale & retail | 2012 |
| THE Planning Crowd Limited | Professional & scientific | 2019 |
| THE Plough Swinderby Ltd | Hospitality | 2012 |
| THE Polyglot LAB Ltd | Information & communication | 2025 |
| THE Poplars Lincoln Limited | Hospitality | 2011 |
| THE Positive Work People Ltd | Administrative & support | 2025 |
| THE Preparation Group Limited | Professional & scientific | 1997 |
| THE Priory Federation of Academies | Education | 2008 |
| THE Proper PUB Company UK Limited | Hospitality | 2005 |
| THE Property Room Ltd | Real estate | 2024 |
| THE PSN Community Ltd | Administrative & support | 2023 |
| THE Real Potato Company Limited | Professional & scientific | 2006 |
| THE Real Vegetable Company Limited | Professional & scientific | 2006 |
| THE Realist Spirit Co Ltd | Manufacturing | 2019 |
| THE Redesdale Hotel Limited | Hospitality | 2022 |
| THE Relationship Therapy Hub Ltd | Health & social care | 2024 |
| THE Remedy Shed Limited | Hospitality | 2008 |
| THE Retail Social Experience Limited | Professional & scientific | 2020 |
| THE Ripon Arms C.I.C. | Hospitality | 2023 |
| THE Roots Lincoln Ltd | Hospitality | 2026 |
| THE Rowston Estate Company Limited | Agriculture & fishing | 1919 |
| THE Rubber Initiative Ltd | Professional & scientific | 2026 |
| THE Rudd Group Limited | Administrative & support | 2025 |
| THE Sail Register Limited | Manufacturing | 2025 |
| THE Salterguide Ltd | Financial services | 2021 |
| THE School of Self Discovery Limited | Health & social care | 2022 |
| THE Shaggy COW Ltd. | Other services | 2025 |
| THE Shelton Partners Group Limited | Financial services | 2026 |
| THE Shelton Property Group Limited | Households | 2026 |
| THE Skills Blueprint Ltd | Administrative & support | 2023 |
| THE Skills GAP Consultancy Limited | Professional & scientific | 2025 |
| THE Smile Artist Ltd | Health & social care | 2019 |
| THE Society of Teachers in Business Education | Education | 2008 |