| Diamond Nails Sleaford Ltd | Other services | 2022 |
| Diamondz School of Dance Ltd | Education | 2021 |
| Dickinson PH Ltd | Hospitality | 2024 |
| Direct Link Healthcare Limited | Health & social care | 2025 |
| Distinctive Bathrooms Ltd | Professional & scientific | 2025 |
| Divergent Byte Ltd | Information & communication | 2025 |
| DJI Conversions Limited | Manufacturing | 2020 |
| DK & J Mason Ltd | Wholesale & retail | 2011 |
| DL Medical Care Ltd | Health & social care | 2021 |
| DLD Consultancy Services Limited | Information & communication | 2014 |
| DLS Welding and Fabrication Limited | Construction | 2018 |
| DMW Developements Limited | Construction | 2017 |
| Dominic Parker Limited | Wholesale & retail | 2014 |
| DON One's Hair Salon Ltd | Other services | 2019 |
| Donald C Larder Limited | Real estate | 1977 |
| Donington Caravans Limited | Wholesale & retail | 2012 |
| Doseuro (UK) Limited | Wholesale & retail | 2007 |
| Down the Drain Limited | Water & waste | 2005 |
| DR Frankie Limited | Professional & scientific | 2025 |
| DR Mark Folman Limited | Health & social care | 2015 |
| Drain Away Drains Limited | Water & waste | 2016 |
| Drayton Welding & Tool Connections Limited | Wholesale & retail | 1988 |
| Dreamee Fashion Ltd | Wholesale & retail | 2024 |
| Drip UK (Irrigation Services) Ltd | Administrative & support | 2019 |
| Drip UK Lincolnshire (Irrigation Services) Limited | Extraterritorial | 2020 |
| Drip UK Norfolk & Suffolk (Irrigation Services) Limited | Extraterritorial | 2020 |
| Duncan Paul Limited | Professional & scientific | 2003 |
| DWH Estates Limited | Real estate | 2010 |
| DWH Properties Limited | Real estate | 2018 |
| Dynamic Construction Solutions Ltd | Construction | 2019 |
| E Gamer Ltd. | Wholesale & retail | 2017 |
| E T Morris (Holdings) Limited | Financial services | 2022 |
| E.M. Key & SON Limited | Agriculture & fishing | 1978 |
| E.T. Morris & Sons Limited | Transport & logistics | 1977 |
| E125 Power Ltd | Manufacturing | 2020 |
| EAC Components UK Ltd | Manufacturing | 2024 |
| Earl Staffing Solutions (Construction) Limited | Administrative & support | 2026 |
| East of England Shooting Ground Limited | Arts & recreation | 2016 |
| EAU Farm (Swaton) Limited | Agriculture & fishing | 1976 |
| Eclipse Barbers Ltd | Other services | 2016 |
| Ecolegacy Developments Ltd | Construction | 2024 |
| Ecospatial Solutions Ltd | Information & communication | 2023 |
| Eden Fire & Security Services Ltd | Administrative & support | 2020 |
| Electronic Metering Equipment & Control Limited | Wholesale & retail | 2010 |
| Eleven Eastgate Limited | Health & social care | 2009 |
| Elite Sculpt & Aesthetics Ltd | Other services | 2025 |
| Elkington Construction Ltd | Construction | 2026 |
| Ellron Consulting Services Ltd | Wholesale & retail | 2020 |
| ELM Property Limited | Extraterritorial | 2015 |
| Elmbush Commercial Limited | Real estate | 1992 |
| Elms Legal Limited | Professional & scientific | 2014 |
| Emberstone Energy Limited | Construction | 2026 |
| Emberstone Group Limited | Financial services | 2026 |
| Emberstone Interiors Limited | Construction | 2021 |
| EME Power Connections Limited | Energy | 2011 |
| EME Power Systems Limited | Energy | 2003 |
| EMI Fire & Security Ltd | Administrative & support | 2024 |
| EMK Construction Lincs Limited | Agriculture & fishing | 2015 |
| Empowher Studio Ltd | Other services | 2023 |
| Empra UK Menswear Limited | Wholesale & retail | 2025 |
| Endurance Building & Roofing Ltd | Construction | 2018 |
| Endurance Property Lettings Ltd | Real estate | 2025 |
| Enhance Beauty (Grantham) Limited | Other services | 2007 |
| Ensira Consultants Limited | Professional & scientific | 2015 |
| Enterprise Seeds Ltd | Extraterritorial | 1997 |
| Eslaforde Developments Limited | Real estate | 2006 |
| ESR Creative Limited | Professional & scientific | 2026 |
| Estetica Mind & Body Limited | Other services | 2023 |
| Estimate Solutions Limited | Administrative & support | 2004 |
| Eton Contracting Solutions Ltd | Construction | 2010 |
| Etulia Ltd | Wholesale & retail | 2020 |
| Evedon Consulting Limited | Professional & scientific | 2022 |
| Event Tech Services Ltd | Arts & recreation | 2021 |
| Everise Associates PVT Ltd | Wholesale & retail | 2026 |
| EW Civils Ltd | Construction | 2022 |
| Ewerby Thorpe Properties Limited | Real estate | 2015 |
| Excellence Coaching by Phil Crawford Ltd | Professional & scientific | 2024 |
| Exclusive Household Cavalry Ltd | Administrative & support | 2019 |
| Exel Wheels Limited | Other services | 2010 |
| Exotic Integrated Services Ltd | Construction | 2025 |
| F. J. C. Slater Consultants Limited | Professional & scientific | 2016 |
| F.H. and G. Hotchkin Limited | Agriculture & fishing | 1976 |
| Fairfield Links CIC | Health & social care | 2023 |
| Farming Investment Company Limited(The) | Construction | 1983 |
| Fastclad Construction Ltd | Construction | 2025 |
| Feathered Feast Co Ltd | Wholesale & retail | 2025 |
| Fenway Holdings Limited | Professional & scientific | 1996 |
| FF Investment 2015 LLP | | 2015 |
| FGF (Lincs) Limited | Agriculture & fishing | 2011 |
| FGS Furnishings (Grantham) Ltd | Wholesale & retail | 2019 |
| FGS Furnishings (Sleaford) Ltd | Wholesale & retail | 2019 |
| FGS Furnishings Limited | Wholesale & retail | 2002 |
| FGS Logistics Limited | Transport & logistics | 2019 |
| FGS Properties Limited | Construction | 2005 |
| Fgyl Ltd | Real estate | 2025 |
| Fifteen Financial Planning Ltd | Professional & scientific | 2022 |
| Fire Shield Systems Limited | Manufacturing | 2017 |
| Firecrest Horizon Limited | Professional & scientific | 2021 |
| Firsteda Limited | Information & communication | 2002 |
| Fishing Evolution Ltd | Wholesale & retail | 2017 |