| 1 Level Faster Limited | Transport & logistics | 2023 |
| 105 Golders Green Road Ltd | Construction | 2022 |
| 114 GPS Limited | Hospitality | 2017 |
| 115 Yyhs Limited | Real estate | 2025 |
| 1183 Finchley Road Limited | Hospitality | 2025 |
| 120 Wigmore Street Limited | Households | 1988 |
| 121B Hamilton Road Limited | Real estate | 2025 |
| 19 Pember Road Freehold Limited | Households | 2017 |
| 1RG Holdings Limited | Financial services | 2020 |
| 1RG Investments Limited | Administrative & support | 2020 |
| 2 Yonge Park Limited | Real estate | 2023 |
| 24HRS Consulting and Management Ltd | Wholesale & retail | 2012 |
| 3 Homer Street Limited | Real estate | 2019 |
| 30 Osterley Park View Management Company Limited | Households | 1987 |
| 94 GG Road Limited | Real estate | 2023 |
| A & W Ellis Limited | Other services | 2014 |
| A Couple of Dice Limited | Hospitality | 2024 |
| A I Commodities Ltd | Wholesale & retail | 2014 |
| A Marlow's Production Ltd | Information & communication | 2021 |
| A Mart Limited | Transport & logistics | 2014 |
| A&D Media House Limited | Wholesale & retail | 2014 |
| A.J.C. Trailers Limited | Manufacturing | 1974 |
| A.S. Harman Limited | Agriculture & fishing | 1973 |
| Abbey Mills Development Limited | Construction | 2021 |
| Ace & Chance Legal Ltd | Professional & scientific | 2024 |
| Adam & EVE (Judd Street) Limited | Households | 2000 |
| Adria Sports Ltd | Administrative & support | 2016 |
| Aerofoil Markets Limited | Financial services | 2017 |
| Airrow Ltd | Professional & scientific | 2017 |
| AJ Assist Ltd | Wholesale & retail | 2022 |
| Akason Holding Limited | Real estate | 2021 |
| Akors Property Limited | Real estate | 2020 |
| AL Nibras Ltd | Professional & scientific | 2021 |
| Alexander Lodge Croydon Limited | Real estate | 2010 |
| Alivec LAB Ltd | Real estate | 2021 |
| ALL in 1 Products Limited | Professional & scientific | 2005 |
| Alvear Limited | Administrative & support | 2016 |
| Ameri & Co Limited | Real estate | 1997 |
| American D Clean Ltd | Other services | 2021 |
| AMS Aircraft Recovery Limited | Manufacturing | 2014 |
| Andoke Brands Limited | Wholesale & retail | 2021 |
| Angelcreed Management Consultancy Limited | Professional & scientific | 2014 |
| Annagraw Limited | Information & communication | 2011 |
| Annandale Financial Management Limited | Administrative & support | 2014 |
| Appi Clinics Limited | Health & social care | 2002 |
| Appi Education Limited | Education | 2012 |
| Appi Health Group Limited | Administrative & support | 2011 |
| Appi Online Limited | Health & social care | 2017 |
| Apple (TW) Limited | Real estate | 2021 |
| Arkenlight Ltd | Professional & scientific | 2020 |
| Ashdove Limited | Real estate | 1996 |
| Ashford Works Development Limited | Real estate | 2021 |
| Aspidistra Properties Limited | Real estate | 2018 |
| Aster AP Services Limited | Professional & scientific | 2024 |
| Asuncion Properties Limited | Administrative & support | 2009 |
| Aswin Chicken Ltd | Manufacturing | 2017 |
| Atime Productions Limited | Information & communication | 2014 |
| Atip GG Limited | Real estate | 2021 |
| Audio Squadron Ltd | Manufacturing | 2019 |
| Augusta Advisory Management Limited | Professional & scientific | 1996 |
| Awesome Economic Research Limited | Professional & scientific | 2024 |
| Awesomechips Colindle Ltd | Hospitality | 2017 |
| Azik Capital Limited | Real estate | 2021 |
| B Bagel Camden Limited | Hospitality | 2021 |
| B Bagel Holding Limited | Financial services | 2025 |
| B Bagel Soho Ltd | Hospitality | 2018 |
| B Bagel Trading Limited | Hospitality | 2022 |
| B R Worldwide Consultancy Ltd | Administrative & support | 2020 |
| B Y Construction Limited | Construction | 2018 |
| B&G Tool Hire Ltd | Manufacturing | 2015 |
| Banana Holdings Limited | Real estate | 1991 |
| Baozupo Limited | Real estate | 2021 |
| Barnet Refugee Service | Health & social care | 2004 |
| Barry Taylor Properties Limited | Real estate | 2004 |
| Based Central Ltd | Real estate | 2020 |
| BCR342 Limited | Hospitality | 2021 |
| Bear Land Limited | Professional & scientific | 2012 |
| Bell Phillips Architects Limited | Professional & scientific | 2004 |
| Bellshore Property Investments Limited | Construction | 1980 |
| Benthal Properties Limited | Real estate | 2016 |
| BH26 Limited | Other services | 2022 |
| Bigger Bang Limited | Administrative & support | 2010 |
| Birch Sussex Limited | Wholesale & retail | 2022 |
| Blackbullion Ltd | Education | 2011 |
| Blockchoice Limited | Construction | 1973 |
| Blue House Media Limited | Information & communication | 2015 |
| Blue PAD Limited | Financial services | 2020 |
| Bondshell Developments Limited | Construction | 1998 |
| BR53 Limited | Real estate | 2022 |
| Braintree Consortium Limited | Real estate | 2015 |
| Bright Group Holdings Limited | Financial services | 2014 |
| Bright Instrument Co. Limited | Manufacturing | 1937 |
| Bright Instrument Property Co Limited | Real estate | 2020 |
| Brightweight UK Ltd | Wholesale & retail | 2011 |
| Britannia Sage Oxbridge School Limited | Education | 2024 |
| BSA Mini Mart Ltd | Wholesale & retail | 2024 |
| Bsal Ventures Limited | Wholesale & retail | 2020 |
| Business Challengers Limited | Extraterritorial | 2012 |
| Buy Cupa Slate Ltd | Extraterritorial | 2021 |
| Buy Roof Slate Limited | Wholesale & retail | 2016 |