| 10, Carlingford Road Limited | Real estate | 1977 |
| 1ST Call Window Cleaning Bromley Limited | Administrative & support | 2026 |
| 1ST Choice Coaches Limited | Transport & logistics | 2000 |
| 21 SE38SL Ltd | Real estate | 2021 |
| 22 Granville Road RTM Company Limited | Real estate | 2011 |
| 22 Hova Villas Limited | Real estate | 2015 |
| 247 Removals Ltd | Transport & logistics | 2025 |
| 29 Fourteen Ltd | Financial services | 2024 |
| 2AH Consulting Limited | Professional & scientific | 2021 |
| 3 Match Consulting Limited | Professional & scientific | 2012 |
| 328 Investments Limited | Arts & recreation | 2024 |
| 39 Pampisford Road Limited | Real estate | 2019 |
| 3D Learning Limited | Professional & scientific | 2000 |
| 419 Archway Road Freehold Company Limited | Households | 2008 |
| 46 Gaskarth Road (Freehold) Limited | Hospitality | 2015 |
| 5 Thurleigh Avenue Ltd | Households | 2024 |
| 6 Under Limited | Administrative & support | 2006 |
| 60 Thrale Road Management Limited | Real estate | 1986 |
| 64/66 ELM Park Road Residents Limited | Real estate | 1984 |
| 69 Lansdowne Place (Hove) Limited | Real estate | 2009 |
| 8 Signs Croydon Ltd | Professional & scientific | 2026 |
| 80 Lawrie Park Road Limited | Real estate | 1998 |
| 86 Rossiter Road Limited | Households | 2021 |
| 9 the Spinney Limited | Real estate | 2019 |
| 9 Westgate Terrace Limited | Real estate | 1990 |
| A & F George Limited | Construction | 2003 |
| A a Wilson Limited | Other services | 2017 |
| A Class Contractors Ltd | Construction | 2011 |
| A Class Developments Ltd | Real estate | 2020 |
| A Halliday Limited | Construction | 2020 |
| A J B Groundworks Limited | Other services | 2015 |
| A L T Roofing Solutions Limited | Construction | 2025 |
| A P C Building Services (London) Limited | Construction | 2004 |
| A P Ward Building Services Ltd | Construction | 2022 |
| A Peacock Ltd | Construction | 2025 |
| A Place Less Ordinary Ltd | Administrative & support | 2015 |
| A&A Moblie Catering Ltd | Hospitality | 2025 |
| A&M Surfacing UK Ltd | Construction | 2026 |
| A&W Projects Limited | Professional & scientific | 2023 |
| AB Bookkeeping & Accountancy Ltd | Professional & scientific | 2016 |
| Abbey CAB Services Limited | Transport & logistics | 2017 |
| Abbey Grove Developments Limited | Real estate | 2022 |
| Abbey MOT Station Limited | Administrative & support | 2006 |
| Ability Alliance Ltd | Manufacturing | 2025 |
| Ability Roofing Limited | Construction | 1997 |
| Abinger Lewes Limited | Real estate | 2013 |
| Able Facades Ltd | Professional & scientific | 2018 |
| Absolute Glass Limited | Construction | 2005 |
| Absolute Schools Limited | Professional & scientific | 2024 |
| Absolute Tuition Limited | Education | 2020 |
| Absolutely Plastered Kent Limited | Administrative & support | 2023 |
| Acacia Maintenance Limited | Administrative & support | 2022 |
| Acacia Tree Surgeons Limited | Agriculture & fishing | 2011 |
| Access 11 Ltd | Information & communication | 2002 |
| Access Bureau Limited | Financial services | 2012 |
| Access Tickets Limited | Administrative & support | 2012 |
| Accuracy Developments Ltd | Construction | 2016 |
| Ace (UK) Airconditioning Limited | Construction | 2004 |
| Ace Groundworks Kent Ltd | Construction | 2021 |
| Ace Imperium Electrical Ltd | Construction | 2025 |
| Ace JET Cleaning Ltd | Construction | 2018 |
| Acer Services Limited | Financial services | 2019 |
| Acorn Deer Management Limited | Agriculture & fishing | 1981 |
| Active Leisure Bromley Ltd | Arts & recreation | 2008 |
| Active Pensions Limited | Financial services | 2012 |
| Activity Gift Vouchers Limited | Other services | 1998 |
| Actnow Services Ltd | Administrative & support | 2023 |
| Adams Carpentry & Sons Ltd | Manufacturing | 2022 |
| Adams Electrical.London Ltd | Construction | 2022 |
| Adaptiveinc Ltd | Professional & scientific | 2024 |
| ADD to Cart Ltd | Information & communication | 2012 |
| Addicted Films Limited | Administrative & support | 2006 |
| Addspace Building Limited | Construction | 2013 |
| Addspace Developments Ltd | Real estate | 2020 |
| Adept Restorative Cleaning Limited | Administrative & support | 2010 |
| Admin & Reception Co Ltd | Other services | 2025 |
| Advance M&E Ltd | Construction | 2018 |
| Advanced Avionics Ltd | Administrative & support | 2018 |
| AEG Projects Limited | Construction | 2025 |
| Aega Marketing Limited | Administrative & support | 2018 |
| Aero Dynamik Aviation Detailing Ltd | Administrative & support | 2022 |
| Aeronys Systems Ltd | Information & communication | 2024 |
| AFS Accountants Limited | Professional & scientific | 2010 |
| AFS Bureau LLP | | 2013 |
| Agricultural & Plant Air Conditioning Ltd | Construction | 2006 |
| AHW Consulting Limited | Professional & scientific | 2005 |
| Air Alderney Limited | Transport & logistics | 2020 |
| Air Apparent Limited | Administrative & support | 2017 |
| Air Law Limited | Professional & scientific | 2023 |
| AJ Clark Commercial Services Limited | Professional & scientific | 2026 |
| AJ Clark Properties Limited | Real estate | 2025 |
| AJG Aviation Ltd | Manufacturing | 2023 |
| AJH Property & Developments Limited | Real estate | 2025 |
| AJZ Properties Limited | Real estate | 2025 |
| Akinkugbe Limited | Information & communication | 2002 |
| AKL Kent Ltd | Construction | 2013 |
| AKS Mills Ltd | Professional & scientific | 2014 |
| Akshar Pubs Limited | Hospitality | 2017 |
| Akshara AKS Ltd | Wholesale & retail | 2021 |
| Alarming Sounds Ltd | Administrative & support | 1999 |