| "OK" OUR Kids Community Interest Company | Education | 2018 |
| 00 Chauffeurs Ltd | Transport & logistics | 2023 |
| 00318108 Ltd | Extraterritorial | 1936 |
| 00319732 Limited | Professional & scientific | 1936 |
| 01 Automation Ltd | Professional & scientific | 2024 |
| 010 Zero One Zero Limited | Transport & logistics | 2022 |
| 0E0E Ltd | Information & communication | 2016 |
| 1 Idea Limited | Information & communication | 2021 |
| 1-2 Barley Court RTM Company Limited | Households | 2017 |
| 101 Construction & Landscaping Ltd | Construction | 2020 |
| 1085 Limited | Wholesale & retail | 2020 |
| 111 Hughenden Road Ltd | Real estate | 2024 |
| 118 Totteridge Road Limited | Real estate | 2011 |
| 120 Totteridge Road Management Company Limited | Households | 2006 |
| 123 Finance Ltd | Professional & scientific | 2021 |
| 126 BPM Ltd | Construction | 2024 |
| 129 London Road Limited | Households | 2004 |
| 13 Stars Ltd | Professional & scientific | 2022 |
| 13/15 Priory Road Management Limited | Households | 2024 |
| 130 Leamington Limited | Hospitality | 2022 |
| 156 Residents Association (Ashford) Limited | Real estate | 1994 |
| 169 Maidstone Ltd | Real estate | 2026 |
| 17 Housing Management Ltd | Real estate | 2020 |
| 172A KMR (Freehold) Limited | Real estate | 2024 |
| 17CARE UK Ltd | Administrative & support | 2019 |
| 18 Heyford AVE Ltd | Households | 2018 |
| 1983 Ltd | Information & communication | 2011 |
| 1LOGIK Ltd | Information & communication | 2026 |
| 1ST Choice Building Ltd | Construction | 2025 |
| 1ST Choice Coach Hire Ltd | Transport & logistics | 2024 |
| 1ST Class Executives Ltd | Transport & logistics | 2022 |
| 1ST Delight Kitchen Ltd | Hospitality | 2024 |
| 1ST GAS Heating Services Ltd | Construction | 2021 |
| 1ST Glaze Direct Limited | Construction | 2008 |
| 1VOICE1VISION Limited | Arts & recreation | 2007 |
| 2 a TEE Ltd | Professional & scientific | 2008 |
| 2 Chevening Road Limited | Households | 2003 |
| 2 Locally Limited | Administrative & support | 2020 |
| 2 New Life Limited | Other services | 2024 |
| 20 West Wycombe Road Management Company Limited | Households | 1994 |
| 20 Wycombe Lane RTM Company Ltd | Households | 2017 |
| 2020 Interiors Ltd | Wholesale & retail | 2022 |
| 20TH Century Toys Ltd | Wholesale & retail | 2020 |
| 21ST Century Geoscience Ltd | Professional & scientific | 2019 |
| 22 Amersham Hill Management Limited | Households | 2015 |
| 22 Ventures Limited | Information & communication | 2021 |
| 223BRONCO Limited | Wholesale & retail | 2024 |
| 224 West Wycombe Road Residents Association Limited | Households | 2007 |
| 24 Hours Healthcare Ltd | Health & social care | 2024 |
| 24/7 Fuel FIX Ltd | Manufacturing | 2020 |
| 242 Property Management Limited | Real estate | 2014 |
| 247 Facilities Ltd | Information & communication | 2020 |
| 247TYREASSIST Limited | Wholesale & retail | 2023 |
| 24H Plumbing Services Ltd | Construction | 2025 |
| 24KG Productions LLP | | 2025 |
| 24KG Productions UK Limited | Arts & recreation | 2026 |
| 25.STAR Limited | Construction | 2020 |
| 270 Solutions Ltd | Professional & scientific | 2018 |
| 29, London Road Limited | Professional & scientific | 2023 |
| 2A&M Limited | Wholesale & retail | 2021 |
| 2BMETALIA Limited | Construction | 2023 |
| 2INNOVATIVE Ltd | Information & communication | 2019 |
| 2N Estates Limited | Real estate | 2023 |
| 3 Dimensional Insurance Ltd | Financial services | 2011 |
| 3-4 Barley Court RTM Company Limited | Households | 2017 |
| 30 Rounds Military Fitness Limited | Arts & recreation | 2026 |
| 30THIRTY Print House Limited | Manufacturing | 2018 |
| 31 February Rail Limited | Construction | 2016 |
| 313 Consultancy Ltd | Information & communication | 2024 |
| 313 Resourcing Ltd | Administrative & support | 2024 |
| 315 Supplies Limited | Other services | 2020 |
| 326 Autolease Ltd | Wholesale & retail | 2020 |
| 34 Bisham Gardens Freehold Limited | Extraterritorial | 2015 |
| 349 Building & Maintenance Limited | Construction | 2017 |
| 35 BGI Limited | Real estate | 2009 |
| 353 West Wycombe Road Management Company Ltd | Households | 2018 |
| 355 London Road (High Wycombe) Limited | Hospitality | 2008 |
| 360 Recycling London Limited | Water & waste | 2013 |
| 360FA Ltd | Education | 2021 |
| 362 Oxford Road Limited | Real estate | 2024 |
| 365 Servicez Ltd | Wholesale & retail | 2025 |
| 365CLEANING Limited | Administrative & support | 2021 |
| 37 Hampden Road Residents Association Ltd | Households | 2016 |
| 381 Properties HW Limited | Real estate | 2023 |
| 381 Properties Ltd | Real estate | 2024 |
| 39 & 40 Gainsborough Grove Ltd | Real estate | 2021 |
| 395 West Wycombe Road Management Company Limited | Real estate | 2014 |
| 3:15 Limited | Administrative & support | 2005 |
| 3D BIM Solutions Ltd | Professional & scientific | 2018 |
| 3D Grips Limited | Other services | 2004 |
| 3G Logistics Limited | Transport & logistics | 2000 |
| 3M'S Roofing Ltd | Construction | 2025 |
| 3SIGHTS Ltd | Information & communication | 2016 |
| 3SIXTY Building Ltd | Construction | 2018 |
| 3VINS Investments Ltd | Real estate | 2024 |
| 4 Play Recordings Limited | Information & communication | 2002 |
| 42 Amersham Hill Management Company Limited | Real estate | 2014 |
| 44 Emergency Ltd | Wholesale & retail | 2025 |
| 45 London Road Management Company Limited | Households | 2020 |
| 45 Management Limited | Administrative & support | 2001 |