| 'Q' Practical Electrical Ltd. | Information & communication | 2002 |
| 1 - 6 Parkway Limited | Households | 2021 |
| 1-4 Alexander House (Freehold) Ltd | Households | 2025 |
| 1-UP Finance Limited | Professional & scientific | 2025 |
| 100 Penny Acre Limited | Agriculture & fishing | 2015 |
| 101 Leicester Ltd | Real estate | 2019 |
| 108 Realty Ltd | Real estate | 2025 |
| 123 Wolverton Mansions Limited | Households | 2015 |
| 13/14 Gloucester Square Freehold Limited | Households | 2007 |
| 13/14 Gloucester Square Limited | Households | 1982 |
| 14 Stars Group Limited | Health & social care | 2025 |
| 159 Moffat Road Ltd | Real estate | 2014 |
| 17, Hamilton Terrace Limited | Households | 2002 |
| 1DAKIKADADENIZ Ltd | Extraterritorial | 2024 |
| 1ST Choice Consultants Ltd | Administrative & support | 2024 |
| 1ST Team Consultants Limited | Administrative & support | 2024 |
| 2 Diamonds Construction Ltd | Real estate | 2021 |
| 2 Feet 4 Paws Ltd | Other services | 2020 |
| 2 Jessamine Road (Freehold) Ltd | Real estate | 2025 |
| 2 States Ltd | Information & communication | 2025 |
| 2 Ways Rail Ltd | Construction | 2019 |
| 23 ST Margarets Road Limited | Households | 2007 |
| 23NS Consulting Limited | Professional & scientific | 2025 |
| 23NS Limited | Professional & scientific | 2020 |
| 24 Briick Ltd | Real estate | 2021 |
| 24/7 Emergency Locksmith Solution Ltd | Other services | 2020 |
| 24/7 Roofing Solutions Ltd | Construction | 2024 |
| 26-28 Mayflower Street (Hazlemere) Management Company Limited | Households | 2026 |
| 27-28 Ennismore Gardens Limited | Households | 2010 |
| 2E Transport Limited | Transport & logistics | 2018 |
| 2R3 Ltd | Hospitality | 2022 |
| 3 Magic Monkeys Limited | Professional & scientific | 2008 |
| 302 Woodlands Avenue Eastcote Limited | Households | 2005 |
| 31BC Limited | Wholesale & retail | 2021 |
| 36 Kingsend (Ruislip) Limited | Households | 1996 |
| 360 Residential Property Services Ltd | Administrative & support | 2016 |
| 38 Franconia Road (Freehold) Limited | Households | 2020 |
| 39 Cavendish Place RTM Company Ltd | Households | 2024 |
| 3CUBED Consultants Ltd | Professional & scientific | 2022 |
| 3HLS Consulting Ltd | Information & communication | 2016 |
| 3SP Investments Ltd | Households | 2022 |
| 4 Love of Design, Ltd | Construction | 2020 |
| 4 Points Branding Solutions Limited | Other services | 2018 |
| 40 Hillside Limited | Real estate | 2016 |
| 405 Leicester Limited | Real estate | 2021 |
| 40A and 40B Acacia Avenue Ruislip Freehold Ltd | Professional & scientific | 2020 |
| 41-42 Windsor Street Ltd | Real estate | 2025 |
| 43 Engadine Street Freehold Limited | Real estate | 2020 |
| 43 Percent Investments Ltd | Professional & scientific | 2022 |
| 442 Sports Agency Ltd | Arts & recreation | 2020 |
| 5 & 6 WC Limited | Households | 2019 |
| 5 Star UK Roofing Ltd | Construction | 2025 |
| 51 Acres Limited | Administrative & support | 2007 |
| 54-56 Marsh Road Freehold Limited | Households | 2013 |
| 600 EML Ltd | Arts & recreation | 2020 |
| 6IXTH Sense Solutions Limited | Professional & scientific | 2008 |
| 7 Links Accounting Ltd | Professional & scientific | 2023 |
| 701 Limited | Real estate | 2017 |
| 75 Caledonian Road Flat Management Limited | Extraterritorial | 1989 |
| 76 Edith Road (Management) Limited | Households | 1986 |
| 78 Ltd | Professional & scientific | 2019 |
| 7A Restaurants Limited | Hospitality | 2023 |
| 8 - 14 Bromley Crescent (Freehold) Limited | Real estate | 2021 |
| 8 Kingsend Freehold Limited | Households | 2008 |
| 808 Accounting Ltd | Professional & scientific | 2018 |
| 888 Moves Ltd | Other services | 2020 |
| 89 Goswell Road Limited | Extraterritorial | 2000 |
| 999 Fitness Ltd | Extraterritorial | 2024 |
| A & a Capital Limited | Hospitality | 2005 |
| A & a Ceilings to Partitions Limited | Construction | 2015 |
| A & D Consumables Ltd | Wholesale & retail | 2021 |
| A & G Metal Works Limited | Construction | 2018 |
| A - Z Lighting Limited | Construction | 2015 |
| A and M Tailoring Ltd | Administrative & support | 2017 |
| A C N Assets Limited | Real estate | 2017 |
| A H Services (Staines) Limited | Wholesale & retail | 2019 |
| A Hargreaves Financial Services Ltd | Financial services | 2017 |
| A J Heeran Limited | Construction | 2012 |
| A Marks Construction Ltd | Construction | 2016 |
| A R (London) Holdings Limited | Other services | 2022 |
| A S Pannu Ltd | Construction | 2025 |
| A S Patel Food & Wine Ltd | Wholesale & retail | 2021 |
| A S Peck Engineering Limited | Manufacturing | 1986 |
| A&G Fire Protection Ltd | Construction | 2015 |
| A&V Paradise Limited | Other services | 2026 |
| A-Froye Hair Ltd | Other services | 2020 |
| A. Rather Associates Healthcare Ltd | Health & social care | 2016 |
| A.Carlton Limited | Wholesale & retail | 2025 |
| A.F Refrigeration (UK) Ltd | Other services | 2012 |
| A.F Refrigeration Group UK Limited | Other services | 2024 |
| A.G.C.Engineering Company Limited | Manufacturing | 1963 |
| A.S.N. Investments Limited | Real estate | 2001 |
| A1 Fashions Planet Ltd | Wholesale & retail | 2026 |
| A11 Trading Ltd | Wholesale & retail | 2025 |
| A2B Commercial Sales Ltd | Administrative & support | 2026 |
| A2ND Limited | Real estate | 2023 |
| A2S Events Ltd | Arts & recreation | 2019 |
| A2Z Optics Limited | Health & social care | 2017 |
| A3B Construction Limited | Professional & scientific | 2023 |
| AA Engineering Solution Ltd | Professional & scientific | 2023 |