| NKG Investments Limited | Real estate | 2003 |
| NMX Consulting Ltd | Health & social care | 2020 |
| Noise.Co.Uk Limited | Professional & scientific | 2001 |
| Old Forge Homes Ltd | Construction | 2019 |
| Old Forge Real Estate Limited | Real estate | 2022 |
| OM SAI Enterprise (London) Limited | Transport & logistics | 2016 |
| Opus Project Consultants Limited | Professional & scientific | 2024 |
| Orma Consulting Limited | Information & communication | 2026 |
| Outdoor Training Events & Coaching Limited | Arts & recreation | 2022 |
| Outward Gardens Limited | Wholesale & retail | 2020 |
| Paper House (UK) Limited | Wholesale & retail | 2010 |
| Paul Hammett Accounting Solutions Ltd | Professional & scientific | 2014 |
| Pellakin Trading Limited | Administrative & support | 2026 |
| Perry House Dental Surgery Limited | Health & social care | 2013 |
| Peter Mayer Limited | Professional & scientific | 2020 |
| PHS Space Ltd | Professional & scientific | 2006 |
| PIA Newton Consulting Limited | Professional & scientific | 2023 |
| Pichler Consulting Limited | Professional & scientific | 2006 |
| Pmgb Limited | Information & communication | 2016 |
| Pole Attack Workshops Ltd | Arts & recreation | 2015 |
| Power Tool & Plant Hire Limited | Administrative & support | 2023 |
| Rance Property Ltd | Construction | 2023 |
| RLT Scaffolding Limited | Construction | 2016 |
| Ruby Housing Solutions Limited | Real estate | 2023 |
| Salveo Care Ltd | Health & social care | 2010 |
| Sandy Laping Ltd. | Health & social care | 2017 |
| Saspal Ltd | Wholesale & retail | 2024 |
| Shire Land Agents Limited | Real estate | 2019 |
| SJ Healthcare Consultancy Ltd. | Professional & scientific | 2019 |
| SKI Focus Ltd | Extraterritorial | 2012 |
| Snow Limits Limited | Extraterritorial | 2012 |
| Sportscontent Ltd | Arts & recreation | 2022 |
| Spotedegg Limited | Information & communication | 2013 |
| Stevenage Road Properties LLP | | 2011 |
| Stfc (23) Ltd | Arts & recreation | 2023 |
| Stuart Fantham Solicitors Limited | Professional & scientific | 2007 |
| Sustainability Software Limited | Professional & scientific | 2012 |
| Syndicate 72 Limited | Information & communication | 2019 |
| Tamed Technology Limited | Information & communication | 2007 |
| Tandem Productions Limited | Information & communication | 2017 |
| Thames Valley Water Services Ltd | Water & waste | 2012 |
| THE Borough Purveyor Limited | Manufacturing | 2014 |
| THE Forge Boutique Limited | Wholesale & retail | 2011 |
| THE Music Master Publications Limited | Education | 2008 |
| THE Sight Surgery Ltd | Health & social care | 2019 |
| THE Strategem Organisation Limited | Professional & scientific | 2008 |
| THE Vale Gardener Limited | Administrative & support | 2023 |
| THE Village Midwife Ltd | Health & social care | 2021 |
| Thubron Coaching and Consultancy Ltd | Professional & scientific | 2024 |
| Tkpa Management Ltd | Arts & recreation | 2013 |
| Tres Corazones Limited | Hospitality | 2015 |
| Tring Road Management Limited | Households | 2013 |
| Vascson Limited | Health & social care | 2006 |
| Water Refill Group Limited | Administrative & support | 2025 |
| Wendover Green Limited | Construction | 2009 |
| Wendover Grill & Kebabs Ltd | Hospitality | 2023 |
| Westmead Studio Ltd | Arts & recreation | 2016 |
| Willow FOX Property Limited | Real estate | 2020 |