| "THE Heights" (Management) NO. 1 Limited | Households | 1963 |
| 1 OMK Ltd | Real estate | 2020 |
| 1-10 Greenlands Addington Road Croydon Limited | Households | 2015 |
| 10 Bramley Hill Ltd | Households | 2020 |
| 11 Harewood Road RTM Company Limited | Real estate | 2016 |
| 11 Moreton Road Limited | Extraterritorial | 1997 |
| 111X Ltd | Information & communication | 2024 |
| 113 Blackheath Park Limited | Real estate | 2006 |
| 115-120 Ladygrove (Freehold) Limited | Households | 2000 |
| 12 Croham Park Avenue RTM Company Limited | Households | 2008 |
| 121 Air-Sea Cargo Limited | Transport & logistics | 2013 |
| 13 Birdhurst Road South Croydon Freehold Company Limited | Households | 2023 |
| 13 Birdhurst Road South Croydon Management Co. Limited | Real estate | 1986 |
| 14 Birdhurst Road Collective | Households | 2022 |
| 155 Sanderstead Road Ltd | Households | 2026 |
| 16 Mowbray Road Limited | Households | 1995 |
| 16 Normanton Freehold Limited | Households | 2002 |
| 16616855 Ltd | Information & communication | 2025 |
| 17 Birdhurst Road Residents Limited | Households | 2026 |
| 1721 Limited | Real estate | 2021 |
| 18 Campden Road Management Limited | Households | 1993 |
| 19 Birdhurst Road Limited | Real estate | 1981 |
| 1ST Class Disposal Ltd | Water & waste | 2012 |
| 2 Birdhurst Freehold Limited | Households | 2009 |
| 2 Glossop Road RTM Company Limited | Households | 2021 |
| 2 Oak Collective Limited | Households | 2026 |
| 2&4 Heyford Road Limited | Real estate | 2014 |
| 20 Keble Court Limited | Extraterritorial | 2020 |
| 204 Sydenham Road Limited | Households | 2010 |
| 21 Brighton Road Management Company Limited | Households | 2014 |
| 21 Spencer Road Residents Company Limited | Real estate | 1974 |
| 22 Avondale Road (Croydon) Management Company Limited | Households | 2013 |
| 22 Briton Crescent Management Ltd | Real estate | 2022 |
| 22 Dornton Road Freeholders Limited | Households | 2015 |
| 23 Management Limited | Professional & scientific | 2014 |
| 24 Lower Rock Gardens Limited | Real estate | 2007 |
| 242 Brighton Road Property Management Company Limited | Real estate | 2018 |
| 247 Emergency Call OUT Ltd | Administrative & support | 2020 |
| 24TRANS Ltd | Wholesale & retail | 2019 |
| 25 Blenheim Park Road Management Company Limited | Households | 2012 |
| 25 Spencer Road, South Croydon Residents Limited | Households | 1974 |
| 26 Bramley Hill Management Company Limited | Households | 2006 |
| 26/40 Brighton Road Management Limited | Households | 1983 |
| 2NDBOUNCE Limited | Administrative & support | 2009 |
| 2PRIYA Limited | Health & social care | 2025 |
| 3 Limited | Professional & scientific | 1997 |
| 30 Avondale Road (Croydon) RTM Company Limited | Real estate | 2020 |
| 301 Design Limited | Administrative & support | 1997 |
| 31 Blenheim Park Road Limited | Households | 2008 |
| 31 Percent Wool Ltd | Professional & scientific | 2017 |
| 33 Florence Road RTM Company Limited | Real estate | 2023 |
| 33 Normanton Road RTM Company Limited | Households | 2021 |
| 33-INFINITY Ltd | Agriculture & fishing | 2023 |
| 34-36 Brighton Road (Coulsdon) Residents' Association Limited | Real estate | 1992 |
| 36 Blenheim Crescent Freehold Limited | Real estate | 2011 |
| 360MAXLDN Ltd | Other services | 2022 |
| 37 Croham Park Avenue Management Limited | Administrative & support | 2003 |
| 3E Energy Ltd | Construction | 2023 |
| 3PS Lift Ltd | Construction | 2025 |
| 3RM Investments LLP | | 2023 |
| 3VG Fixing Solutions Ltd | Manufacturing | 2026 |
| 4 Birdhurst Rise Limited | Households | 2016 |
| 414 Construction Ltd | Administrative & support | 2016 |
| 42 Montrell Road RTM Company Limited | Households | 2022 |
| 43 Stanger Road RTM Company Limited | Households | 2022 |
| 46 Cascmc Ltd | Households | 1988 |
| 48/50 Avondale Road Residents Ltd. | Households | 1994 |
| 49 Blenheim Park Road Limited | Households | 2001 |
| 498 - 504 Brighton Road Limited | Real estate | 2017 |
| 4AN Holdings Ltd | Professional & scientific | 2025 |
| 4CUBE Services and Management Limited | Information & communication | 2017 |
| 4ESSENCE Events Ltd | Administrative & support | 2026 |
| 4PG Limited | Real estate | 2020 |
| 4TH Line Consulting Limited | Information & communication | 1997 |
| 5 Crossways Limited | Construction | 2016 |
| 506/508 Brighton Road Freehold Limited | Real estate | 2017 |
| 53 Anson Road Limited | Professional & scientific | 2009 |
| 54 Avondale Road (Croydon) Limited | Households | 2007 |
| 54 Blenheim Park Road Freehold Limited | Extraterritorial | 2011 |
| 55 Birdhurst Rise Limited | Households | 1994 |
| 57 Church Road Limited | Real estate | 2013 |
| 5KISAA Holdings Ltd | Construction | 2024 |
| 5SYNC Limited | Information & communication | 2025 |
| 6 Birdhurst Rise Limited | Households | 2014 |
| 6 Embankment Gardens Freehold Limited | Households | 2019 |
| 6 Embankment Gardens RTM Company Limited | Real estate | 2018 |
| 60 Beechwood Road Ltd | Households | 2021 |
| 61 Avondale Freehold Management Limited | Households | 2011 |
| 64 Mayfield Road Freehold Limited | Households | 2003 |
| 6K Property Ltd | Real estate | 2025 |
| 7 - 12 Theresas Walk Limited | Households | 2009 |
| 7 Hair X Ltd | Other services | 2025 |
| 71 Mayfield Road Management Company Limited | Real estate | 2002 |
| 7375 Ltd | Information & communication | 2016 |
| 747INVESTMENT Ltd | Real estate | 2026 |
| 76 Croham Road Limited | Professional & scientific | 2002 |
| 76 Portland Road RTM Company Limited | Households | 2018 |
| 77 ST Peters Road Limited | Households | 2006 |
| 78 Mayfield Road Limited | Professional & scientific | 2010 |
| 8 Croham Park Avenue Ltd | Households | 2021 |