| "Heights" (Management) NO 2 Limited(The) | Households | 1965 |
| 05217379 Limited | Construction | 2004 |
| 1 Brewery Road Management RTM Company Limited | Administrative & support | 2018 |
| 10 Westbury Ltd | Hospitality | 2015 |
| 10 Wickham Road Limited | Households | 2008 |
| 10-16 Links Way Limited | Households | 2006 |
| 100 Club Properties Limited | Real estate | 2024 |
| 103-105 Birkbeck Road Management Limited | Households | 2012 |
| 107A Monks Management (8006) Limited | Real estate | 2013 |
| 10K Consultants Ltd | Information & communication | 2025 |
| 11 Auckland Hill Freehold Management Company Limited | Households | 2004 |
| 11 Copers Cope RTM Company Limited | Households | 2013 |
| 1124 Investments Limited | Financial services | 2023 |
| 114 Upper Shirley Management Limited | Households | 2015 |
| 12 Dreamgardens Limited | Health & social care | 2009 |
| 12 Southend Road Management Company Limited | Households | 1995 |
| 122 Lennard Road Management Company Ltd | Households | 2002 |
| 1230 the Women's Company Ltd | Other services | 2006 |
| 12743101 Ltd | Manufacturing | 2020 |
| 13 Beckenham Road RTM Company Limited | Households | 2004 |
| 13 Crescent Road (Beckenham) Freehold Limited | Households | 2022 |
| 13 Manor Road RTM Company Limited | Real estate | 2012 |
| 14 Cautley Avenue Freehold Limited | Households | 2016 |
| 14 Perran Road (Freehold) Limited | Real estate | 2022 |
| 141 Croydon Road RTM Company Limited | Households | 2021 |
| 14266355 Ltd | Wholesale & retail | 2022 |
| 14864510 Ltd. | Extraterritorial | 2023 |
| 15 Northampton Road Limited | Households | 2011 |
| 15 WR Limited | Real estate | 2025 |
| 15638739 Ltd | Manufacturing | 2024 |
| 15693625 Limited | Manufacturing | 2024 |
| 15883673 Limited | Wholesale & retail | 2024 |
| 16310709 Limited | Manufacturing | 2025 |
| 16559369 Ltd | Wholesale & retail | 2025 |
| 1714 Partners Limited | Professional & scientific | 2025 |
| 175 Kings Hall Road Management Company Limited | Real estate | 1993 |
| 18 Brockley Park Forest Hill Limited | Households | 2015 |
| 180 Birkbeck Limited | Households | 2022 |
| 181 Anerley Road Limited | Households | 2019 |
| 19 Benedict House Limited | Real estate | 2024 |
| 1AESTHETIC Ltd. | Professional & scientific | 2010 |
| 1ENT Artist Management Limited | Administrative & support | 2026 |
| 1ST Class Group Limited | Construction | 2007 |
| 1ST Class Haulage Limited | Transport & logistics | 2024 |
| 1ST Class Scaffolding (Essex) Limited | Construction | 2015 |
| 1ST Class Waste and Recycling Limited | Water & waste | 1974 |
| 1ST Class Waste Management Limited | Transport & logistics | 1995 |
| 1STOPWEB Innovation Ltd | Professional & scientific | 2010 |
| 2040 Holding Limited | Information & communication | 2021 |
| 21 Century Columbus Int'L Trading Limited | Wholesale & retail | 2024 |
| 212/214 Ravensbourne Avenue Management Limited | Real estate | 2004 |
| 214 Croydon Road Residents Management Company Limited | Other services | 1996 |
| 21A Ford Street RTM Company Limited | Households | 2020 |
| 21SUPPS Limited | Wholesale & retail | 2026 |
| 222 Birkbeck Road Ltd | Households | 2025 |
| 222 Collective Group Ltd | Wholesale & retail | 2024 |
| 223 Streatham Road Developments Ltd | Construction | 2017 |
| 23 Oswin Street Limited | Households | 2015 |
| 239-245 Croxted Road Limited | Administrative & support | 2014 |
| 24 ST. Aubyn's Road RTM Company Limited | Real estate | 2009 |
| 24 Woodstock Road (Freehold) Limited | Households | 2017 |
| 259 South Lambeth Road Limited | Households | 2017 |
| 26 Pelham Road Ltd | Households | 2009 |
| 27/45 Westgate Road Management Company Limited | Households | 1983 |
| 285 a & B Crystal Palace Road Limited | Other services | 2014 |
| 289 Beckenham Road Company Ltd | Real estate | 2013 |
| 29 Albemarle Road Limited | Real estate | 1982 |
| 29 Manor Road Freehold Limited | Households | 2004 |
| 2A Sidney Road Limited | Administrative & support | 2016 |
| 2PX Freehold Management Limited | Households | 2017 |
| 2V Cleaning & Property Maintenance Limited | Administrative & support | 2015 |
| 2WINS Food Ltd | Hospitality | 2024 |
| 33 Central Hill Limited | Real estate | 2017 |
| 34 Flaxman Road Management Company Limited | Real estate | 2003 |
| 35 Kingston Road Management Company Limited | Households | 1998 |
| 35 Tyrwhitt Road Freehold Limited | Households | 2010 |
| 36&5 Limited | Wholesale & retail | 2014 |
| 37 Bromley Road Property Management Limited | Households | 1999 |
| 3C (London) Ltd | Construction | 2022 |
| 3CYCLE Ltd | Construction | 2020 |
| 3D House Ltd | Administrative & support | 2022 |
| 3M Ventures Limited | Real estate | 2017 |
| 3SANDZ Ltd | Real estate | 2021 |
| 3XM'S Property Limited | Real estate | 2024 |
| 3YM Holdings Limited | Professional & scientific | 2024 |
| 4 Court Downs Road (Beckenham) Maintenance Limited | Households | 1970 |
| 4 Creswell Drive RTM Company Limited | Households | 2024 |
| 4 Josephs Ltd | Professional & scientific | 2022 |
| 41 Seagrave Road Limited | Households | 2020 |
| 41 Sidney Road (Freehold) Limited | Households | 2013 |
| 428 Track Group Limited | Arts & recreation | 2025 |
| 46 & 48 Birkbeck Road Limited | Households | 2023 |
| 47 Bromley Road Ltd | Households | 2016 |
| 47 Manor Road RTM Company Limited | Households | 2026 |
| 49 Wickham Road Freehold Limited | Households | 2024 |
| 5 the Avenue (Beckenham) Management Company Limited | Households | 2006 |
| 5 the Avenue Beckenham Limited | Households | 2022 |
| 500 Degrees Clock House Ltd | Hospitality | 2017 |
| 506 Assets Limited | Real estate | 2025 |
| 55 East Dulwich Road Limited | Real estate | 2008 |