| Drapers Road (Enfield) Management Company Limited | Households | 2012 |
| DRB Refurbishment Ltd | Construction | 2026 |
| DSG Electrical UK Limited | Wholesale & retail | 2005 |
| Dudley Construction Limited | Construction | 2012 |
| Dudley Properties Limited | Real estate | 2004 |
| DW Drawings Limited | Administrative & support | 2002 |
| Ebstar Solutions Limited | Other services | 2014 |
| Eddie's Good Choice Limited | Hospitality | 2023 |
| Edgecop Limited | Professional & scientific | 2014 |
| EEA Hassan (Cafe Bistro) Limited | Hospitality | 2024 |
| Eggplant Enterprises Limited | Wholesale & retail | 2020 |
| Elcopay Limited | Professional & scientific | 2019 |
| Eleanor Road Management Limited | Households | 1986 |
| Elephanteco Electrical Limited | Construction | 2015 |
| Eleven Red Limited | Professional & scientific | 2021 |
| Elmsleigh Road Management Company Limited | Real estate | 2022 |
| Elysium Utilities Ltd | Construction | 2022 |
| Embah Limited | Wholesale & retail | 2021 |
| Enea Contractors Ltd | Construction | 2020 |
| Ennas Property Group Ltd | Real estate | 2022 |
| Equigait Ltd | Professional & scientific | 2012 |
| Escape (Barbering) Ltd | Other services | 2016 |
| Escape Christian Ltd | Other services | 2014 |
| Eshraghi Medical Engineering Solutions Ltd | Manufacturing | 2025 |
| Essex Network Solutions Ltd | Construction | 2016 |
| Esthethe London Ltd | Other services | 2025 |
| ET Plumbing & Heating Ltd | Construction | 2019 |
| Ethos Communication Print (Services) Limited | Administrative & support | 2009 |
| Ethos Communication Solutions (Services) Limited | Administrative & support | 2002 |
| Ethos Document Solutions Limited | Construction | 2003 |
| Ethos Ethical Energy LLP | | 2010 |
| Ethos Trustees Limited | Administrative & support | 2010 |
| Etoile Facilities Services Limited | Professional & scientific | 2019 |
| Evergreen Tree Services Ltd | Administrative & support | 2015 |
| Everythings Education Ltd | Education | 2018 |
| Excalibur Resource Management (UK) Limited | Real estate | 2000 |
| Expert Stone Limited | Manufacturing | 2019 |
| Express Couriers London Ltd | Transport & logistics | 2016 |
| Face & Figure Limited | Other services | 1989 |
| FBS Investments Ltd | Real estate | 2020 |
| Feel the Force Fitness Ltd | Other services | 2022 |
| Fibre & Data Specialists Limited | Information & communication | 2014 |
| Fire-Tec Gold Limited | Administrative & support | 2000 |
| First Prospect Investments Limited | Real estate | 2006 |
| Firstbase Digital Limited | Administrative & support | 2010 |
| Fishy Delishy Cheshunt Limited | Hospitality | 2019 |
| Flamstead Building Services Limited | Construction | 2015 |
| Fleet Partnership Solutions Limited | Administrative & support | 2002 |
| Ford Rhodes Asset Management LLP | | 2026 |
| Ford Rhodes Group Ltd | Real estate | 2026 |
| Formula Fade Ltd | Other services | 2024 |
| Full Circle Contracts Ltd | Construction | 2017 |
| G Care Construction Limited | Construction | 2021 |
| G M D Interior Design Ltd | Other services | 2006 |
| G Mantella Group Limited | Wholesale & retail | 2005 |
| G Mantella Limited | Wholesale & retail | 1991 |
| G W Couriers Ltd | Other services | 2006 |
| G&J Company Services Limited | Construction | 2021 |
| G.R.C. Maintenance Limited | Real estate | 2002 |
| G2 Properties Ltd | Real estate | 2025 |
| Garden Knights Ltd | Administrative & support | 2018 |
| Gatehouse Associates Ltd | Wholesale & retail | 1998 |
| GB Promotional Products Limited | Professional & scientific | 2005 |
| GCS (Cheshunt) Limited | Transport & logistics | 1998 |
| GDC Services (Middlesex) Limited | Construction | 2014 |
| GDG Group Ltd | Transport & logistics | 2017 |
| Gearing Property Services Limited | Professional & scientific | 2010 |
| Gemis Limited | Real estate | 1997 |
| Gerard Rail Services Ltd | Construction | 2016 |
| Giugliano Logistics Ltd | Transport & logistics | 2024 |
| GJB Gardens Ltd | Administrative & support | 2026 |
| Gladstone LDN Limited | Manufacturing | 2019 |
| GLK Services Limited | Professional & scientific | 2017 |
| Glue Galore Limited | Wholesale & retail | 2019 |
| Golden Mantella Jewellers Limited | Wholesale & retail | 1982 |
| Golden Swan Properties Ltd | Real estate | 2020 |
| Goldtouch Commercial Limited | Real estate | 2026 |
| Gorilla Supplements Ltd | Administrative & support | 2019 |
| Gracelands Complete Maintenance Services Limited | Energy | 2003 |
| Gracelands Properties Limited | Real estate | 2017 |
| Grangewood Joinery London Limited | Manufacturing | 2017 |
| Greenleaves Properties Limited | Real estate | 2021 |
| Gross Food Ltd | Other services | 2023 |
| Guaranteed Events Ltd | Administrative & support | 2014 |
| H a Accountancy Limited | Administrative & support | 2017 |
| H R B Properties Limited | Real estate | 2002 |
| Hadham Ceilings Limited | Construction | 2010 |
| Haley Print Ltd | Other services | 2020 |
| Hallmere Associates Ltd | Real estate | 2001 |
| Halo Technology Ltd | Administrative & support | 2008 |
| Hammondstreet Consulting Limited | Other services | 2016 |
| Hampstead Motor Services (UK) Ltd | Wholesale & retail | 2010 |
| Haniltech Limited | Information & communication | 2026 |
| Haniltech Procurement Ltd | Wholesale & retail | 2026 |
| Hankintech Ltd | Wholesale & retail | 2018 |
| Happy Bebe Ltd | Health & social care | 2024 |
| Happy Tails & Trails Ltd | Other services | 2026 |
| Hardy Joyce Consultancy Limited | Professional & scientific | 2017 |
| Harmony Contractors Ltd | Information & communication | 2001 |
| Harvey Bing Ltd | Real estate | 2020 |