| 5 Star Build Ltd | Construction | 2018 |
| 5 Star Business Support Ltd | Administrative & support | 2022 |
| 5 Star Car Rentals Ltd | Administrative & support | 2026 |
| 5 Star Carers Limited | Health & social care | 2025 |
| 5 Star Cars Northampton Ltd | Transport & logistics | 2022 |
| 5 Star Changeovers Limited | Administrative & support | 2025 |
| 5 Star CHAUFFEURS5 Ltd | Transport & logistics | 2025 |
| 5 Star Chefs Ltd | Hospitality | 2020 |
| 5 Star Cleaning & Rubbish Removals Ltd | Water & waste | 2025 |
| 5 Star Damp & Plastering Ltd | Construction | 2026 |
| 5 Star Dog Groomers Limited | Other services | 2026 |
| 5 Star Dog Walks Limited | Other services | 2026 |
| 5 Star Drainage Ltd | Construction | 2022 |
| 5 Star Fencing Limited | Wholesale & retail | 2020 |
| 5 Star General Trading Ltd | Wholesale & retail | 2023 |
| 5 Star Golf Holidays Limited | Extraterritorial | 2016 |
| 5 Star Goods Ltd | Wholesale & retail | 2020 |
| 5 Star Host Limited | Real estate | 2019 |
| 5 Star International Trading Limited | Wholesale & retail | 2017 |
| 5 Star Investments (London) Ltd | Real estate | 2016 |
| 5 Star Kulture Group Ltd | Real estate | 2026 |
| 5 Star Landscape Solutions Limited | Administrative & support | 2026 |
| 5 Star London Property Ltd | Real estate | 2023 |
| 5 Star Maitre-D Ltd | Wholesale & retail | 2025 |
| 5 Star Mini Market Ltd | Wholesale & retail | 2025 |
| 5 Star Nails & Spa RF Ltd | Other services | 2018 |
| 5 Star Nails and Spa TAP Ltd | Other services | 2018 |
| 5 Star Painting Limited | Construction | 2026 |
| 5 Star Parking Limited | Administrative & support | 2017 |
| 5 Star PCO Rental Limited | Transport & logistics | 2023 |
| 5 Star Plumbing & GAS Limited | Construction | 2017 |
| 5 Star Production Ltd | Transport & logistics | 2019 |
| 5 Star Property Proposals Ltd | Real estate | 2020 |
| 5 Star Redevelopments Limited | Real estate | 2025 |
| 5 Star Residential Children Care Ltd | Administrative & support | 2026 |
| 5 Star Rolling Ice Ltd | Hospitality | 2025 |
| 5 Star Serviced Lets Ltd | Real estate | 2019 |
| 5 Star Surveying Ltd | Professional & scientific | 2023 |
| 5 Star Tennis Holidays Limited | Administrative & support | 2011 |
| 5 Star Trading House Limited | Wholesale & retail | 2019 |
| 5 Star Unisex Hair Salon Ltd. | Other services | 2014 |
| 5 Star United Friends Limited | Real estate | 2022 |
| 5 Star Woman Ltd | Wholesale & retail | 2025 |
| 5 Stars Appliances Limited | Wholesale & retail | 2012 |
| 5 Stars Cleaning Co (Services) Limited | Administrative & support | 2023 |
| 5 Stars Food Ltd | Wholesale & retail | 2025 |
| 5 Stars Hair & Beauty Ltd | Other services | 2023 |
| 5 Stars Solution Ltd | Construction | 2024 |
| 5 Stars Trade Ltd | Wholesale & retail | 2015 |
| 5 Steine ST Limited | Real estate | 2018 |
| 5 Sterndale Road Limited | Real estate | 2004 |
| 5 Stile Hall Gardens Limited | Extraterritorial | 2011 |
| 5 Strathmore Gardens Freehold Limited | Real estate | 2025 |
| 5 Sulgrave Road Management Limited | Households | 2002 |
| 5 Sunderland Terrace Freehold Company Limited | Households | 2008 |
| 5 Sunningdale Gardens Limited | Households | 2016 |
| 5 Sutton Court Management Limited | Real estate | 1997 |
| 5 Talbot Square Management Co Limited | Households | 1975 |
| 5 Thackeray Street Freehold Limited | Households | 2013 |
| 5 the Chase Management Limited | Households | 1984 |
| 5 the Crescent (Freehold) Limited | Households | 2006 |
| 5 Thirlmere Road RTM Company Ltd | Households | 2014 |
| 5 Thornton Avenue Limited | Households | 2004 |
| 5 Three NI Ltd | Wholesale & retail | 2024 |
| 5 Thurloe Square Limited | Households | 1985 |
| 5 Thurlow Park Road Freehold Limited | Households | 2021 |
| 5 Thurlow Road Limited | Real estate | 2010 |
| 5 Tierney Road Freehold Management Company Limited | Households | 2013 |
| 5 Towns Roofing and Guttering Ltd | Construction | 2026 |
| 5 True Life Ltd | Transport & logistics | 2014 |
| 5 Tyrwhitt Road Limited | Households | 2001 |
| 5 Vermont Road (Management) Limited | Households | 1992 |
| 5 Walton House Limited | Real estate | 2024 |
| 5 Warrington Crescent Limited | Households | 1983 |
| 5 Waterbrook Limited | Real estate | 2021 |
| 5 Watersmeet Watch Ltd | Real estate | 2025 |
| 5 Waverley Road Freehold Ltd | Real estate | 2016 |
| 5 Welbeck Limited | Financial services | 2015 |
| 5 Westbourne Park Road Limited | Households | 1989 |
| 5 Westbrook Gardens Management Ltd | Households | 2020 |
| 5 Westgate Terrace Freehold Limited | Households | 2017 |
| 5 Wetherby Gardens Freehold Limited | Households | 2012 |
| 5 White Horse Limited | Hospitality | 2021 |
| 5 Windsor Road Limited | Households | 2005 |
| 5 Winthorpe Road Residents Association Limited | Households | 1983 |
| 5 Wise Monkeys Ltd | Administrative & support | 2014 |
| 5 Wolseley Road Limited | Households | 2022 |
| 5 Wolseley Street Freehold Company Limited | Households | 2021 |
| 5 Wolseley Street RTM Company Limited | Households | 2018 |
| 5 Woodchurch Road Limited | Real estate | 2011 |
| 5 Woodgrange Avenue Ltd | Households | 2023 |
| 5 Worlingham Road Limited | Households | 2002 |
| 5 Yard Rush Entertainment Ltd | Arts & recreation | 2020 |
| 5 Year Plan Limited | Information & communication | 2015 |
| 5&6 Catering Ltd | Hospitality | 2026 |
| 5&6 Homefield Close Limited | Households | 2026 |
| 5&S Ltd | Wholesale & retail | 2025 |
| 5, Bina Gardens Limited | Professional & scientific | 1986 |
| 5, ST. Cuthberts Road, Freeholders Association Ltd. | Real estate | 1988 |
| 5-0 Studios London Limited | Information & communication | 2023 |