| A Space to Retreat CIC | Health & social care | 2025 |
| A&Z Co Corporation Limited | Wholesale & retail | 2025 |
| A.S.I. (Research) Limited | Administrative & support | 1981 |
| A2P Property Services CIC | Health & social care | 2020 |
| Absolute Body Ltd | Wholesale & retail | 2020 |
| AD2DAN Ltd | Real estate | 2020 |
| Advantage Business Contracts Ltd | Information & communication | 2008 |
| Ae&A Ltd | Professional & scientific | 2025 |
| AH Landscape and Maintenance Ltd | Administrative & support | 2026 |
| AJ Properties 2019 Ltd | Real estate | 2010 |
| Albermarle Capital Limited | Information & communication | 2020 |
| Alire Consultants UK Limited | Professional & scientific | 2023 |
| Allsports Kids Limited | Education | 2011 |
| ALM Support Services Ltd | Administrative & support | 2021 |
| Alpha Carnegie Recruitment Services Ltd | Administrative & support | 2009 |
| Alpha Kappa Ltd | Professional & scientific | 2007 |
| Ambassador Properties Limited | Construction | 2012 |
| AMC Consultancy Global Limited | Real estate | 2023 |
| Angelstar Accountants Ltd | Professional & scientific | 2017 |
| Ask-Ezz UK Ltd | Information & communication | 2022 |
| Assembly Apartments (Caretakers Lodge) RTM Company Limited | Households | 2017 |
| Assembly Apartments RTM Company Limited | Other services | 2016 |
| Ath-Uk Ltd | Wholesale & retail | 2022 |
| Attah Watches London Ltd | Wholesale & retail | 2025 |
| Autonomy Medical Services Limited | Health & social care | 2013 |
| Avani Investments Ltd | Real estate | 2021 |
| Awgc Ltd | Other services | 2013 |
| Aymer Alton Limited | Information & communication | 2023 |
| B W Electronics Limited | Manufacturing | 2010 |
| B1 Tyres Online Ltd | Wholesale & retail | 2018 |
| B3 Services Ltd | Real estate | 2015 |
| Bade Akins Property Ltd | Real estate | 2023 |
| Barking FC Football Club Ltd | Arts & recreation | 2020 |
| Base 2020 Electrical Ltd | Other services | 2015 |
| Baxy Limited | Wholesale & retail | 2003 |
| Beamfast Limited | Construction | 1987 |
| BEE Holdings Ltd | Other services | 2016 |
| Blank Collective Ltd | Other services | 2022 |
| Bowden Bradley Ltd | Real estate | 2022 |
| Bowden Bradley Property Management Ltd | Real estate | 2023 |
| Bridging Ventures Group Limited | Financial services | 2011 |
| Brown ELM Limited | Wholesale & retail | 2019 |
| Brunel Accountants Ltd | Professional & scientific | 2017 |
| BSS Engineering & Consultancy Ltd | Wholesale & retail | 2024 |
| Business Global Network Ltd | Agriculture & fishing | 2022 |
| Bvgspv 23 Limited | Professional & scientific | 2017 |
| Bvgspv Ltd | Professional & scientific | 2016 |
| BVGSPV24 Ltd | Professional & scientific | 2018 |
| BVGSPV25 Ltd | Professional & scientific | 2018 |
| BVGSPV26 Ltd | Professional & scientific | 2021 |
| California Traders Ltd | Wholesale & retail | 2025 |
| Calyx Chambers Limited | Professional & scientific | 2018 |
| Capital Forge Ltd | Administrative & support | 2023 |
| Carbon Clean Engineers Ltd | Administrative & support | 2019 |
| Carbon Clean Ltd | Wholesale & retail | 2016 |
| Carisma Printing Company Limited | Manufacturing | 2005 |
| Cash Dynamics Holdings Limited | Financial services | 2022 |
| Cash Dynamics Limited | Administrative & support | 2009 |
| Cassvensi Ltd | Wholesale & retail | 2022 |
| Central Line Buses Ltd | Other services | 2018 |
| Chase Capital Holdings Ltd | Real estate | 2024 |
| Chase Cross 2021 Limited | Real estate | 2021 |
| Chigwell Healthcare Limited | Wholesale & retail | 2012 |
| Chiltern Oakmont Consultancy Services Ltd | Professional & scientific | 2026 |
| City View Window Cleaning Ltd | Administrative & support | 2024 |
| Club ROW Collective Limited | Administrative & support | 2002 |
| Cmgm Holdings Ltd | Real estate | 2026 |
| CMO Properties Ltd | Real estate | 2020 |
| Commercial Property Gazette Ltd | Information & communication | 2025 |
| Cranmer & Sons Limited | Wholesale & retail | 2008 |
| Creatifbox Limited | Professional & scientific | 2009 |
| Crest Haven Care (Dagenham) Ltd | Real estate | 2021 |
| Crest Haven Care Group Holdings Ltd | Health & social care | 2024 |
| Crest Pro Solutions Limited | Administrative & support | 2024 |
| Cursey Technology Limited | Manufacturing | 1998 |
| Cutlers Green Farm Ltd | Real estate | 2022 |
| DA Group Holding Ltd | Financial services | 2021 |
| Dangerfield Studios Ltd | Manufacturing | 2025 |
| Dean Floyd Limited | Administrative & support | 2010 |
| Dean Floyd Management Limited | Real estate | 2016 |
| Derek Care Group Ltd | Health & social care | 2026 |
| DIGI7 Limited | Information & communication | 2023 |
| DMB Investments Limited | Real estate | 1999 |
| DS Chappell Services Limited | Construction | 2013 |
| Dursemoor Developments Limited | Construction | 2021 |
| Dursemoor Properties Limited | Construction | 2020 |
| Eagle EYE FM Ltd | Administrative & support | 2018 |
| Edenbrook Advisory Ltd | Professional & scientific | 2025 |
| Edwards Bespoke Carpentry Ltd | Construction | 2025 |
| EJ Roberts Roofing Contractors Limited | Construction | 2020 |
| Elivora Inc Ltd | Information & communication | 2025 |
| ELM Kitchen and Bedroom Ltd | Manufacturing | 2024 |
| Energy Cycle Ltd | Professional & scientific | 2013 |
| Epping Road Ltd | Construction | 2016 |
| Essex Care Estates Ltd | Health & social care | 2024 |
| Evolve Enterprise Consulting Limited | Professional & scientific | 2008 |
| EWJ Teknik UK Ltd | Wholesale & retail | 2019 |
| Floyd and SON Ltd | Other services | 2011 |
| Franklyn Waste Management Ltd | Other services | 2020 |
| Fujichem Sonneborn Limited | Manufacturing | 1947 |