| 00913735 Limited | | 1967 |
| 08485391 Limited | Construction | 2013 |
| 1 More REP Limited | Extraterritorial | 2019 |
| 1 Park Road SE25 Freehold Company Ltd | Real estate | 2017 |
| 102 High Street Limited | Households | 2017 |
| 102 Lowdell Close Ltd | Real estate | 2024 |
| 12 Knights Security Ltd | Administrative & support | 2026 |
| 121 Cars Heathrow Ltd | Wholesale & retail | 2022 |
| 2 Friends Minicabs Ltd | Transport & logistics | 2023 |
| 24 EPM Ltd | Real estate | 2018 |
| 247 Chauffeurs Ltd | Transport & logistics | 2017 |
| 247 Flights & Holidays Ltd | Hospitality | 2025 |
| 2M'S Trading Ltd | Wholesale & retail | 2020 |
| 303 Flooring Limited | Construction | 2022 |
| 313 Desserts Limited | Wholesale & retail | 2025 |
| 32 ER Ltd | Real estate | 2021 |
| 33 Marketing Ltd | Professional & scientific | 2025 |
| 34K Ltd | Hospitality | 2019 |
| 360 Degrees Consulting Ltd | Information & communication | 2007 |
| 369 IT Consultancy Limited | Wholesale & retail | 2026 |
| 36T Hub Intl Limited | Professional & scientific | 2021 |
| 3AG Builders Ltd | Construction | 2014 |
| 3B Maintenance Ltd | Construction | 2025 |
| 3MR Digital Company Limited | Wholesale & retail | 2018 |
| 4 Cosy Homes Limited | Real estate | 2019 |
| 4 Ways Services Ltd | Administrative & support | 2026 |
| 4EVER Beauty Limited | Other services | 2017 |
| 5 Star Premier Transport Ltd | Transport & logistics | 2022 |
| 50-50 Sync CIC | Administrative & support | 2011 |
| 552 LR Limited | Real estate | 2021 |
| 62 West Studio Ltd | Arts & recreation | 2020 |
| 67 Transfers and Tours Ltd | Transport & logistics | 2026 |
| 9-SHEN Ltd | Information & communication | 2023 |
| 99 Designs and Build Limited | Manufacturing | 2025 |
| 99 Miles Ltd | Transport & logistics | 2025 |
| A & H Trading Ltd | Wholesale & retail | 2013 |
| A Build Contractor Ltd | Construction | 2025 |
| A G Developers and Investment Limited | Real estate | 2025 |
| A&A Pro Cleaning Ltd | Administrative & support | 2025 |
| A&D London Chauffeur Ltd | Transport & logistics | 2019 |
| A&E Trading Limited | Wholesale & retail | 2006 |
| A&F Developers Limited | Construction | 2023 |
| A&J Pharmaceuticals Limited | Professional & scientific | 2026 |
| A&K Star Limited | Information & communication | 2018 |
| A&N Trading and Services Ltd | Wholesale & retail | 2025 |
| A&T Financial Solutions Ltd | Professional & scientific | 2025 |
| A. K. London Constructions Limited | Construction | 2006 |
| A.Auto Services Ltd | Transport & logistics | 2025 |
| A.C. London Cleaning Ltd | Administrative & support | 2025 |
| A.Feather & Co.Limited | Hospitality | 1956 |
| A.S.Chauffeurs Ltd | Transport & logistics | 2014 |
| A1Z Chauffeurs Ltd | Transport & logistics | 2022 |
| AA Bitumen Solutions Limited | Wholesale & retail | 2025 |
| AA Eyecare Ltd | Health & social care | 2021 |
| Aa-Jintech (Materials) Limited | Wholesale & retail | 2025 |
| Aa-Jintech (New Products) Limited | Manufacturing | 2025 |
| Aa-Jintech Limited | Professional & scientific | 2025 |
| Aadhix Digital Limited | Information & communication | 2026 |
| Aarc Group Ltd | Real estate | 2023 |
| Aarewa Limited | Other services | 2025 |
| Aarfore Ltd | Administrative & support | 2013 |
| Aarn Construction and Maintenance Ltd | Construction | 2024 |
| Aartee Care LP | | 2022 |
| Aashna Courier Ltd | Transport & logistics | 2015 |
| Aasra Welfare CIC | Hospitality | 2024 |
| Aats Construction and Development Ltd | Real estate | 2026 |
| Abercrombie & Co Limited | Financial services | 2024 |
| Abiniabi Limited | Real estate | 2025 |
| Abinis Consultancy Ltd | Professional & scientific | 2020 |
| Abiti Properties Ltd | Real estate | 2024 |
| About Technology Limited | Wholesale & retail | 2016 |
| ABS Painting & Rendoring Services Limited | Construction | 2026 |
| ABS Vasu Ltd | Construction | 2016 |
| AC Traders Ltd | Wholesale & retail | 2026 |
| Academiq Ltd | Education | 2023 |
| Accelerate Advisory Limited | Information & communication | 2024 |
| Access Housing & Accommodation Group Ltd | Real estate | 2026 |
| Acem UK Limited | Manufacturing | 2005 |
| Acer U.K. Limited | Wholesale & retail | 1988 |
| Achint Ltd | Wholesale & retail | 2025 |
| Acme Credit Consultants Limited | Financial services | 2005 |
| Acme Property Investments Ltd | Real estate | 2021 |
| ACR Tipping Services Ltd | Transport & logistics | 2013 |
| Acresofspaceproperties Limited | Administrative & support | 2025 |
| ACS Abseiling Ltd | Construction | 2021 |
| Action Garage Services Limited | Wholesale & retail | 2020 |
| Addy's Property Group Limited | Real estate | 2025 |
| Addy’S Group Limited | Wholesale & retail | 2023 |
| Adeyemi Adelakun Limited | Information & communication | 2009 |
| Adielisei Limited | Transport & logistics | 2024 |
| ADM Construction Ltd | Construction | 2023 |
| ADM Trade Limited | Wholesale & retail | 2019 |
| Admiral Constructions Ltd | Construction | 2020 |
| Adriels Care and Assessments Ltd | Health & social care | 2021 |
| ADV Fasteners & Fixings Ltd | Wholesale & retail | 2020 |
| Advance Build Ltd | Construction | 2023 |
| Advance Chauffeur Line Ltd | Other services | 2019 |
| Advance Financial Consultants Limited | Financial services | 2009 |
| Advanced Shopfront & Shutters Ltd | Manufacturing | 2014 |
| Advantagit Solutions Limited | Information & communication | 2014 |