| 7 KBW Limited | Professional & scientific | 2002 |
| 7 Kellett Road Limited | Households | 2008 |
| 7 Kensington Park Gardens Limited | Households | 1997 |
| 7 Kensington Park Road Limited | Professional & scientific | 1997 |
| 7 Killowen Road Limited | Administrative & support | 2020 |
| 7 Kingdon Road Limited | Professional & scientific | 1997 |
| 7 Kingdon Road Management Company Limited | Households | 2023 |
| 7 LA Bella Pizzeria Limited | Hospitality | 2024 |
| 7 Ladbroke Square Ltd | Households | 2008 |
| 7 Lady Margaret Road Management Limited | Households | 2014 |
| 7 Lamps Security Ltd | Administrative & support | 2026 |
| 7 Lancaster Drive Management Company Limited | Households | 1989 |
| 7 Landor Road Limited | Households | 2001 |
| 7 Langdale Road Management Company Limited | Households | 2018 |
| 7 Larden Road Acton Management Company Limited | Professional & scientific | 1996 |
| 7 LDN Limited | Other services | 2014 |
| 7 Leamington Road Villas (Freehold) Limited | Households | 2024 |
| 7 Leinster Gardens RTM Company Ltd | Real estate | 2012 |
| 7 Leisure Limited | Hospitality | 2003 |
| 7 Leopold Road Management Company Limited | Households | 1997 |
| 7 Lismore Road Limited | Administrative & support | 2017 |
| 7 Longbrook Terrace Management Company Limited | Households | 2013 |
| 7 Longfield Road Limited | Households | 2016 |
| 7 Longridge Road SW5 (Management) Limited | Households | 1993 |
| 7 Lore Ltd | Wholesale & retail | 2023 |
| 7 Lothbury Limited | Real estate | 2007 |
| 7 Lupus Street Management Limited | Administrative & support | 2007 |
| 7 Lvls Ltd | Wholesale & retail | 2025 |
| 7 Lyndhurst Road Limited | Real estate | 1980 |
| 7 Lyndhurst Terrace (Freehold) Limited | Households | 2023 |
| 7 Macfarlane Limited | Real estate | 2017 |
| 7 Madeley LLP | | 2024 |
| 7 Malwood Road Management Company Limited | Households | 1985 |
| 7 Mansel Road Ltd | Households | 2010 |
| 7 Marchwood Crescent Limited | Households | 1997 |
| 7 Margavine Road RTM Company Limited | Households | 2018 |
| 7 Marlborough Limited | Construction | 2024 |
| 7 Marloes Road Limited | Households | 2000 |
| 7 Meath Street Limited | Households | 1983 |
| 7 Media London Ltd | Information & communication | 2019 |
| 7 Meteor Ltd | Real estate | 2020 |
| 7 Millennium Drive E14 RTM Company Limited | Professional & scientific | 2014 |
| 7 Montpelier Freehold Limited | Professional & scientific | 2008 |
| 7 Moorland Road Limited | Households | 2024 |
| 7 Moray Road Limited | Households | 1990 |
| 7 Morland Avenue RTM Company Limited | Households | 2023 |
| 7 Mount Ltd | Real estate | 2024 |
| 7 Mount View Road RTM Company Ltd | Real estate | 2013 |
| 7 Mountains Productions Ltd | Arts & recreation | 2018 |
| 7 Munster Road Management Ltd | Real estate | 2011 |
| 7 Nelson Road (Freehold) Limited | Real estate | 2015 |
| 7 New Inn Broadway Management Company Limited | Households | 2005 |
| 7 Norfolk House Road RTM Company Limited | Households | 2014 |
| 7 North Avenue RTM Company Limited | Households | 2006 |
| 7 Northdown Avenue Freehold Ltd | Real estate | 2025 |
| 7 Oswin Street Limited | Households | 2024 |
| 7 Oxberry Avenue Management Limited | Households | 2013 |
| 7 Palmerston Road Freehold Ltd | Real estate | 2024 |
| 7 Parkhill Management (Hampstead) Limited | Households | 1992 |
| 7 Paultons Square Limited | Real estate | 2024 |
| 7 Peaks Management Solutions Ltd | Real estate | 2025 |
| 7 Pembridge Limited | Financial services | 2023 |
| 7 Pembridge Villas Management Company Limited | Households | 2003 |
| 7 Pepys Road SE14 Freehold Limited | Households | 2004 |
| 7 Pharma Ltd. | Information & communication | 2018 |
| 7 Phillimore Place Limited | Households | 2012 |
| 7 Pillars Security Ltd | Administrative & support | 2016 |
| 7 Pinnacles Training and Consulting Limited | Professional & scientific | 2012 |
| 7 Piquet Road Limited | Professional & scientific | 2004 |
| 7 Platts Lane Freehold Limited | Administrative & support | 2015 |
| 7 Plus Seven Limited | Financial services | 2020 |
| 7 Pockets Ltd | Information & communication | 2022 |
| 7 Point 8 Limited | Information & communication | 2021 |
| 7 Point Productions Ltd | Information & communication | 2023 |
| 7 Pond Head Court Limited | Real estate | 2021 |
| 7 Portland Place RMC Limited | Construction | 2014 |
| 7 Primrose Hill Limited | Financial services | 2025 |
| 7 Randolph Gardens Residents Limited | Households | 2000 |
| 7 Redburn Street Limited | Real estate | 2001 |
| 7 Reighton Road Management Limited | Real estate | 2022 |
| 7 Richborne Terrace Ltd | Extraterritorial | 2011 |
| 7 Riry Limited | Real estate | 2016 |
| 7 River Capital Limited | Professional & scientific | 2024 |
| 7 Rosemont Road (Management) Limited | Households | 1988 |
| 7 Safe Limited | Information & communication | 2001 |
| 7 Satya Limited | Information & communication | 2022 |
| 7 Seafield Road Limited | Real estate | 2012 |
| 7 Seas Marketing Consultancy Ltd | Information & communication | 2020 |
| 7 Seas Plus Limited | Wholesale & retail | 2024 |
| 7 Secure Group Ltd | Wholesale & retail | 2024 |
| 7 Sevynn Ltd | Other services | 2025 |
| 7 Shellhouse | Professional & scientific | 2009 |
| 7 Shepherds Bush Road Limited | Households | 2021 |
| 7 Sigma Fintech Ltd | Other services | 2018 |
| 7 Sigma Investments Ltd | Other services | 2018 |
| 7 Sinclair Gardens Management Limited | Households | 1991 |
| 7 Sins Tattoo Studio Limited | Other services | 2019 |
| 7 Sisters Beauty Centre Limited | Other services | 2026 |
| 7 Sisters Islamic Centre Limited | Other services | 2022 |
| 7 Sixty 2 Limited | Professional & scientific | 2024 |