| 16 Lyonsdown Road Management Company Limited | Households | 1999 |
| 321-331 Hertford Road Management Company Limited | Real estate | 2013 |
| 33 Langham Road Freehold Ltd | Real estate | 2018 |
| 38 Lupus Street Limited | Households | 2004 |
| 43 & 45 Crescent Road Limited | Real estate | 1998 |
| 45 Somerset Road Limited | Professional & scientific | 2010 |
| 45 Station Road Limited | Households | 1995 |
| 6I Property Investments UK Ltd | Real estate | 2024 |
| A & H Taxis Limited | Transport & logistics | 2009 |
| A Freeland Properties Limited | Real estate | 2025 |
| Aangel Consoultancy Ltd | Arts & recreation | 2016 |
| AC Publishing Ltd | Information & communication | 2019 |
| Acme Engineering Services Limited | Professional & scientific | 2008 |
| Adi-Vibes Ltd | Real estate | 2023 |
| Agnes Healing Feeling Ltd | Health & social care | 2021 |
| Albany (Woodford Green) Limited(The) | Households | 1970 |
| ALC Limited | Information & communication | 2018 |
| Alfa Taxis Limited | Transport & logistics | 2024 |
| Alfacab Limited | Transport & logistics | 2025 |
| Alizay Properties Limited | Real estate | 2016 |
| Amalia Construction Ltd | Construction | 2025 |
| Anderson Roofing Limited | Construction | 2018 |
| ANT IT Ltd | Information & communication | 2019 |
| Apex Development Trading Ltd | Construction | 2016 |
| Argyle Consultancy Ltd | Professional & scientific | 2011 |
| Arion Law Solicitors Limited | Professional & scientific | 2017 |
| Arion Properties Limited | Real estate | 2020 |
| Arkley Labels Trading Limited | Manufacturing | 2023 |
| Armitage Asset Management Limited | Real estate | 2012 |
| Armitage Investments Limited | Real estate | 2003 |
| Art of Life (UK) Limited | Education | 2014 |
| Atod Delivery Consult Ltd | Administrative & support | 2015 |
| Avenell Build Limited | Construction | 2019 |
| Aylands (Block a) Management Company Limited | Households | 1990 |
| Aylands (Block C) Management Company Limited | Households | 1990 |
| Aylands (Block D) Management Company Limited | Households | 1990 |
| Aylands (Block E) Management Company Limited | Households | 1990 |
| Aylands (Block G) Management Company Limited | Households | 1990 |
| Aylands (Block H) Management Company Limited | Households | 1990 |
| B Chic Hair Ltd | Professional & scientific | 2015 |
| B.E. Cook Limited | Manufacturing | 1974 |
| Bamuco Limited | Professional & scientific | 2007 |
| Bardskey Flat Management Company Limited | Real estate | 1982 |
| Barnet Accounting Services Ltd | Professional & scientific | 2018 |
| Beacon (Mimms) Limited | Real estate | 1938 |
| Beech Court Station Road Management Co. Limited | Households | 1991 |
| Belfield Flat Management Company Limited | Households | 1983 |
| Belgrave Parsons Limited | Professional & scientific | 1983 |
| Bill Barclay Productions Limited | Professional & scientific | 1999 |
| Black Olive Studio Limited | Information & communication | 2008 |
| BOA Vista Limited | Real estate | 2004 |
| Bodens College of Performing Arts Limited | Arts & recreation | 2014 |
| BPM Project Management (Quartet Homes) Limited | Construction | 2002 |
| BPM Project Management Limited | Professional & scientific | 2002 |
| Britannic Estates Limited | Construction | 1997 |
| Britannic Home Improvement Ltd | Extraterritorial | 2011 |
| Broadgates Holdings Ltd | Real estate | 2018 |
| Bromcom Limited | Information & communication | 2011 |
| Brook Mews, Shooters Hill SE18 Flat Management Company Limited | Households | 2000 |
| Brownlow Road Management Company Limited | Households | 1999 |
| Bruce-Billingham Consultancy Limited | Professional & scientific | 2011 |
| Building 4UK Ltd | Construction | 2015 |
| Burton Capital Investment LLP | | 2023 |
| Burton Capital Ltd | Real estate | 2023 |
| Busyperson Ltd | Information & communication | 2015 |
| Buyinn Limited | Households | 1994 |
| C J Therapies Ltd | Health & social care | 2023 |
| Caledonian Road Estate Management Company Limited | Households | 2002 |
| Capitas Developments Limited | Administrative & support | 1999 |
| Capture Enhanced Ltd | Information & communication | 2022 |
| Carch Ltd | Water & waste | 2019 |
| Carleson Ltd. | Information & communication | 2015 |
| Carlton Court Management Company (Wormley) Limited | Real estate | 1975 |
| Castelino & SON Limited | Health & social care | 2025 |
| Castle Investments (London) Limited | Professional & scientific | 2000 |
| CB Capital Limited | Administrative & support | 1996 |
| Cellad Management Limited | Professional & scientific | 2016 |
| Central Property Limited | Extraterritorial | 1994 |
| Chichester Place Management Company Limited | Households | 1994 |
| Chilled Solutions Group Ltd | Wholesale & retail | 2011 |
| Chilled Solutions Holdings Limited | Manufacturing | 2006 |
| Chiltern Mews Flat Management Company Limited | Households | 2002 |
| Chop Properties Ltd | Real estate | 2020 |
| Chronicle City Ltd | Information & communication | 2012 |
| Clifford Lodge (New Barnet) Limited | Households | 1992 |
| Clive Vale Limited | Professional & scientific | 2014 |
| Cognitive Resources Limited | Education | 2022 |
| Commonwealth Corporation Environmental Research and Innovation Limited | Professional & scientific | 2024 |
| Commonwealth Corporation Health, Wellness and Medical Research Limited | Professional & scientific | 2024 |
| Constantine Developments Ltd | Real estate | 2021 |
| Cosy Property Group Limited | Real estate | 2023 |
| Creative Sensemaking CIC | Health & social care | 2025 |
| Critoph Properties Ltd | Real estate | 2021 |
| Crossbrook Court (Management) Limited | Households | 1971 |
| Cunningham Court RTM Company Limited | Households | 2011 |
| Cupid Taxi Services Limited | Transport & logistics | 2024 |
| Curewell Limited | Financial services | 2011 |
| Cyprus Road (Block a) Management Company Limited | Households | 1992 |
| Cyprus Road (Block B) Management Company Limited | Households | 1992 |
| Cyprus Road (Block C) Management Company Limited | Households | 1992 |