| 27BEGINNINGS Ltd | Education | 2025 |
| 27BIRCHFIELD Ltd | Real estate | 2025 |
| 27CAP | Professional & scientific | 2024 |
| 27COLLECTIVE Ltd | Information & communication | 2022 |
| 27JEZLY Ltd | Other services | 2025 |
| 27JOY Ltd | Professional & scientific | 2025 |
| 27K Ventures Limited | Financial services | 2023 |
| 27K1 Ltd | Information & communication | 2018 |
| 27PRESS Ltd | Information & communication | 2025 |
| 27SOUTHEAST Ltd | Wholesale & retail | 2023 |
| 27WEL Ltd | Real estate | 2026 |
| 28 & Beyond Ltd | Information & communication | 2025 |
| 28 Abbey Road Limited | Extraterritorial | 2002 |
| 28 ABC Limited | Real estate | 2016 |
| 28 Aberdeen Road Limited | Households | 2004 |
| 28 Ackmar Road Management Company Limited | Extraterritorial | 2000 |
| 28 Adamson Road Freehold Limited | Households | 2005 |
| 28 Advisory Limited | Financial services | 2021 |
| 28 Aegis Advisory Ltd | Professional & scientific | 2025 |
| 28 Ainger Road Limited | Households | 2018 |
| 28 Alexander Street Freehold Limited | Households | 2023 |
| 28 Alexandra Park Road Limited | Extraterritorial | 2009 |
| 28 and 28A Byegrove Road (Colliers Wood) Freehold Limited | Households | 2022 |
| 28 and 30 Ravenstone Street Management Company Limited | Households | 2018 |
| 28 Andrews Ltd | Real estate | 2025 |
| 28 Arkwright Road Freehold Ltd | Households | 2016 |
| 28 Bickersteth Road Limited | Professional & scientific | 2004 |
| 28 Bolton Gardens Management Company Limited | Households | 1988 |
| 28 Bonnington Square Management Company Limited | Real estate | 2010 |
| 28 Brackenbury Road Limited | Households | 2004 |
| 28 Bradmore Park Road Freehold Limited | Households | 2015 |
| 28 Bramber Road Limited | Real estate | 2015 |
| 28 Brightwell Crescent Management Limited | Households | 2015 |
| 28 Builders Ltd | Construction | 2025 |
| 28 Cannon Street Road Limited | Households | 2009 |
| 28 Castellain Road Limited | Households | 2010 |
| 28 Castletown Road Residents Limited | Households | 2001 |
| 28 Castlewood Road Freehold Limited | Households | 2023 |
| 28 Chelmsford Road Limited | Households | 2013 |
| 28 Chesterton Road Limited | Households | 2023 |
| 28 Church Street Ltd | Real estate | 2021 |
| 28 Clennam Street Management Company Limited | Real estate | 2004 |
| 28 Clothing Limited | Wholesale & retail | 2025 |
| 28 Colenso Road Limited | Households | 2014 |
| 28 Collingham Place Limited | Households | 2023 |
| 28 Colney Hatch Lane Freehold Limited | Households | 2019 |
| 28 Comyn Road Management Company Limited | Households | 1999 |
| 28 Coningsby Road Freehold Limited | Households | 2018 |
| 28 Consultancy Ltd | Professional & scientific | 2025 |
| 28 Coombe Road RTM Company Ltd | Households | 2009 |
| 28 Cornwall Gardens Limited | Households | 2003 |
| 28 Coverdale Road Residents Company Limited | Other services | 2005 |
| 28 Cran Estates Limited | Real estate | 2026 |
| 28 Cranfield Ltd | Professional & scientific | 2004 |
| 28 Creffield Road Limited | Real estate | 2013 |
| 28 Crockerton Road RTM Company Ltd | Extraterritorial | 2013 |
| 28 Crossley Street Limited | Households | 2026 |
| 28 Crouch Hill Ltd | Real estate | 2019 |
| 28 Cruden Street Limited | Real estate | 1982 |
| 28 Dalton Limited | Real estate | 2026 |
| 28 Danehurst Street Limited | Households | 1992 |
| 28 Darnley Street Management Company Limited | Households | 2023 |
| 28 Day Exchange Limited | Real estate | 2026 |
| 28 Dean & Cole Ltd | Professional & scientific | 2025 |
| 28 December Limited | Information & communication | 2024 |
| 28 Degrees IT Limited | Information & communication | 2013 |
| 28 Denning Road Freehold Company Limited | Real estate | 2023 |
| 28 Derwent Ltd | Real estate | 2018 |
| 28 Developments Limited | Real estate | 2015 |
| 28 Dukes Avenue Limited | Hospitality | 1985 |
| 28 Dunlace Road Limited | Households | 2012 |
| 28 Dunraven Road Limited | Households | 2016 |
| 28 Eagle Wharf Road Freehold Company Limited | Households | 2002 |
| 28 East Dulwich Grove Limited | Households | 2016 |
| 28 Ebbsfleet Road Freehold Limited | Households | 2013 |
| 28 Elder Avenue Residents Limited | Households | 2013 |
| 28 Elgin Crescent Limited | Real estate | 2014 |
| 28 Ellison Road Freehold Ltd | Households | 2017 |
| 28 Ellora RD RTM Company Limited | Households | 2009 |
| 28 Elmbourne Road Management Limited | Real estate | 1994 |
| 28 Essex Road Limited | Households | 2018 |
| 28 Eton Avenue Management Limited | Households | 1988 |
| 28 Fallow Court Freehold Ltd | Real estate | 2022 |
| 28 Farlton Road Limited | Extraterritorial | 2014 |
| 28 Fellows Limited | Professional & scientific | 2026 |
| 28 Fellows Road Freeholders Limited | Households | 2006 |
| 28 Fitzjohns Avenue NW3 Limited | Households | 1995 |
| 28 Floral Street RTM Company Limited | Households | 2010 |
| 28 Frognal NW3 Limited | Households | 2015 |
| 28 GE Investments Limited | Extraterritorial | 2024 |
| 28 Gledhow Gardens Limited | Real estate | 1998 |
| 28 Gloucester Drive Management Company Limited | Households | 2007 |
| 28 Greenwood Road Limited | Real estate | 2015 |
| 28 Groundworks and Civils Ltd | Construction | 2026 |
| 28 GT Ltd | Households | 2018 |
| 28 Gunter Grove Ltd | Households | 2015 |
| 28 Gunterstone Road Limited | Real estate | 2020 |
| 28 Hamlet Road Freehold Limited | Households | 2005 |
| 28 Harcourt Terrace Co Ltd. | Households | 1997 |
| 28 Harold Road Ltd | Households | 2019 |