| Technical Services (Midlands) Ltd | Construction | 2022 |
| Teddy Day Care Ltd | Health & social care | 2024 |
| Teebeck Limited | Health & social care | 2017 |
| Tekniserve Ltd | Extraterritorial | 2019 |
| Tektonik Ltd | Transport & logistics | 2015 |
| Telling (Finishings) Limited | Construction | 1989 |
| Telling (Holdings) Limited | Construction | 2015 |
| Telling (Interiors) Limited | Construction | 2015 |
| Temati (UK) Limited | Wholesale & retail | 1999 |
| Temple Estates (Mansfield) Ltd | Real estate | 2024 |
| Temple Property Management (Berry Hill Hall) Ltd | Real estate | 2025 |
| Temple Property Management (the Granary) Limited | Real estate | 2026 |
| Temptations Ltd | Wholesale & retail | 2025 |
| TEN Gbcs Limited | Professional & scientific | 2008 |
| Tereba Logistics Ltd | Transport & logistics | 2025 |
| Terra Top Roofing Ltd | Construction | 2025 |
| Terry King Financial Services Ltd | Financial services | 2013 |
| Tessuti Group Limited | Professional & scientific | 2012 |
| Tessuti Ltd | Wholesale & retail | 2005 |
| Tessuti Retail Limited | Professional & scientific | 2010 |
| Test ALL Colour Limited | Other services | 2018 |
| Test ALL GAS Limited | Financial services | 2026 |
| Test ALL Group Limited | Financial services | 2026 |
| Test ALL Water Limited | Wholesale & retail | 2016 |
| Teversal Yard Development Limited | Construction | 2014 |
| Tex-Style Limited | Wholesale & retail | 2011 |
| Textile Mill Designs Limited | Manufacturing | 2025 |
| Tezz Property Management Ltd | Real estate | 2021 |
| TFI Catering Ltd | Wholesale & retail | 2019 |
| TFW Capital Ltd. | Financial services | 2018 |
| TG Install Ltd | Construction | 2014 |
| TG Joinery & Building Services Ltd | Construction | 2019 |
| Thackeray Dental Care Ltd | Health & social care | 2013 |
| Thasmi Retail Limited | Wholesale & retail | 2026 |
| THE 71 Trading Company Ltd | Wholesale & retail | 2025 |
| THE Adventure Service Ltd | Education | 2013 |
| THE Amazing Chocolate Workshop Limited | Wholesale & retail | 2021 |
| THE Angelic Reiki Company Ltd | Health & social care | 2011 |
| THE Arborist Limited | Agriculture & fishing | 2003 |
| THE Back Grill Ltd | Hospitality | 2024 |
| THE Bakers Shop Cafe Limited | Wholesale & retail | 2014 |
| THE Balloon Printing Company Ltd | Manufacturing | 2013 |
| THE Beauty Bungalow Ltd | Other services | 2025 |
| THE Bees Nees Property Company Ltd | Real estate | 2025 |
| THE Birthing BAG Limited | Wholesale & retail | 2022 |
| THE Black Bull BED & Breakfast Limited | Hospitality | 2018 |
| THE Blue JAY Brand Limited | Wholesale & retail | 2022 |
| THE Boiler Club Ltd | Professional & scientific | 2013 |
| THE Booth Accelerator Limited | Professional & scientific | 2026 |
| THE Bromley at Fiskerton Limited | Hospitality | 2026 |
| THE Bubbling Kettle Ltd | Hospitality | 2020 |
| THE Bureau Consultancy Ltd | Professional & scientific | 2022 |
| THE Burrrow Investments Limited | Financial services | 2025 |
| THE Business Boutique Limited | Administrative & support | 2011 |
| THE Business Mindset Limited | Administrative & support | 2023 |
| THE Canine Academy (Notts) Limited | Administrative & support | 2025 |
| THE Capital Lash & Brow Company. Ltd | Other services | 2025 |
| THE Carpet Stop Limited | Transport & logistics | 1995 |
| THE Centrefield Group of Companies Limited | Administrative & support | 1985 |
| THE Coal Bucket Ltd | Hospitality | 2026 |
| THE Connexion Management Company Limited | Real estate | 2002 |
| THE Copper Beech (Bilsthorpe) Ltd | Hospitality | 2019 |
| THE Cruise Holiday Shop Limited | Extraterritorial | 2013 |
| THE Cruise Shop Limited | Extraterritorial | 2013 |
| THE Deeds Accountancy Limited | Professional & scientific | 2023 |
| THE Dial SPV Limited | Real estate | 2024 |
| THE Drunken Donkey Ltd | Hospitality | 2024 |
| THE Dwarven Dealer Ltd | Wholesale & retail | 2024 |
| THE Ecomm Consultancy Group Limited | Professional & scientific | 2019 |
| THE Education Mutual Limited | Education | 2018 |
| THE Embroidered Napkin Co Ltd | Manufacturing | 2023 |
| THE Embroidery Centre Limited | Manufacturing | 2003 |
| THE Enchanted Garden Day Nursery Limited | Health & social care | 2020 |
| THE Fashion Shop Ltd | Wholesale & retail | 2020 |
| THE Fells Property Rentals Ltd | Real estate | 2024 |
| THE Forest Archer Events Limited | Administrative & support | 2026 |
| THE Forest Archer Robin Hood Shop Limited | Wholesale & retail | 2023 |
| THE Foundry Garage (Ludlow) Ltd | Wholesale & retail | 2015 |
| THE Fragrance OIL Store Ltd | Wholesale & retail | 2024 |
| THE Freedom Farm Ltd | Wholesale & retail | 2019 |
| THE Funding Wheel Ltd | Financial services | 2020 |
| THE Go 4 Group Limited | Administrative & support | 2017 |
| THE Golden FRY ( Crowthorne ) Ltd | Hospitality | 2021 |
| THE Golden GUN Group Limited | Other services | 2018 |
| THE Golf Athlete Limited | Arts & recreation | 2025 |
| THE Good Food Group Limited | Wholesale & retail | 2016 |
| THE Grange (Shirebrooks) Limited | Health & social care | 2019 |
| THE Grounds Care Group (UK) Ltd | Administrative & support | 2008 |
| THE Hall Homeless Support Project Limited | Health & social care | 2012 |
| THE Healthworks Co.(Notts) Ltd. | Hospitality | 1997 |
| THE Hideaway Burton Limited | Hospitality | 2016 |
| THE Holistic Collective CIC | Other services | 2026 |
| THE Horizon Mansfield Ltd | Hospitality | 2020 |
| THE Hostess Restaurant Limited | Hospitality | 2004 |
| THE House Shop Limited | Wholesale & retail | 2010 |
| THE Hrologist Ltd | Professional & scientific | 2024 |
| THE Humane Touch Community Interest Company | Health & social care | 2009 |
| THE Inspire and Achieve Foundation | Education | 2009 |
| THE Install Company Nationwide Ltd | Construction | 2022 |
| THE Jobs Nest Ltd | Professional & scientific | 2023 |