| 4T2 Sensors Ltd | Professional & scientific | 2016 |
| 4TECH Software Limited | Information & communication | 2010 |
| 4TIS Group Limited | Water & waste | 2026 |
| 4TRESS4GATES Ltd | Manufacturing | 2006 |
| 4TS Creative Limited | Real estate | 2022 |
| 4TS Properties Ltd | Real estate | 2022 |
| 4WARD Venture Ltd | Wholesale & retail | 2024 |
| 4YOU Box Limited | Wholesale & retail | 2022 |
| 4YOUWECLEAN Ltd | Administrative & support | 2024 |
| 5 a Day (Nutritious Fast Food) Limited | Extraterritorial | 2024 |
| 5 Alive Juice Ltd | Hospitality | 2026 |
| 5 Brothers Investments Ltd | Real estate | 2025 |
| 5 C Group Services Ltd | Transport & logistics | 2017 |
| 5 C Limited | Transport & logistics | 2023 |
| 5 Crowns GAS & Plumbing Services Ltd | Construction | 2020 |
| 5 Dane Road Limited | Households | 2015 |
| 5 Day Plumbing Course Limited | Education | 2025 |
| 5 Feathers Limited | Wholesale & retail | 2010 |
| 5 Global Lanes Ltd | Wholesale & retail | 2026 |
| 5 Henry's Products Ltd | Wholesale & retail | 2018 |
| 5 Horizons Group Ltd | Real estate | 2025 |
| 5 Industrial Limited | Transport & logistics | 2019 |
| 5 Keys Holdings Ltd | Financial services | 2026 |
| 5 Keys Ventures Ltd | Other services | 2008 |
| 5 Lockgate Road (SH) Limited | Real estate | 2025 |
| 5 Meadow Road Limited | Households | 2001 |
| 5 Northfield Ltd | Hospitality | 2010 |
| 5 Pillars Trading Ltd | Wholesale & retail | 2021 |
| 5 Q Fort Limited | Real estate | 2025 |
| 5 Rivers Real Estate Limited | Real estate | 2023 |
| 5 Star Beauty Ltd | Other services | 2024 |
| 5 Star Builders Merchants Ltd | Wholesale & retail | 2025 |
| 5 Star Builders Services Ltd | Construction | 2021 |
| 5 Star Day Nursery Limited | Education | 2011 |
| 5 Star Development Ltd | Construction | 2008 |
| 5 Star Diamond Car Wash Limited | Administrative & support | 2021 |
| 5 Star Grocery 2 Ltd | Wholesale & retail | 2025 |
| 5 Star Grocery Ltd | Wholesale & retail | 2025 |
| 5 Star Guarding Limited | Administrative & support | 2023 |
| 5 Star Housing Ltd | Real estate | 2020 |
| 5 Star HR Solutions Limited | Professional & scientific | 2016 |
| 5 Star Operations Ltd | Information & communication | 2023 |
| 5 Star Shop Ltd | Wholesale & retail | 2024 |
| 5 Star Tuition Ltd | Education | 2025 |
| 5 Starr Flava Ltd | Hospitality | 2023 |
| 5 Stars GAS & Electric Ltd | Construction | 2025 |
| 5 Stars Valeting Ltd | Administrative & support | 2024 |
| 5 Tree Digital Limited | Other services | 2020 |
| 5 York Road Edgbaston Management Limited | Real estate | 2000 |
| 50 Cato ST Ltd | Real estate | 2025 |
| 50 ST Georges Avenue Management Company Limited | Households | 2003 |
| 500 Housing Ltd | Health & social care | 2025 |
| 500 Ltd | Real estate | 2024 |
| 50WS Limited | Construction | 2018 |
| 511 Entertainment Limited | Arts & recreation | 2026 |
| 511 Foods Ltd | Hospitality | 2020 |
| 511 Properties Ltd | Real estate | 2026 |
| 51DHU Holdings Ltd | Financial services | 2026 |
| 51X Limited | Wholesale & retail | 2019 |
| 52 Enterprises Limited | Wholesale & retail | 2024 |
| 52 GAS Street Ltd | Hospitality | 2014 |
| 529 Investments Limited | Hospitality | 2026 |
| 52A DN9 Ltd | Real estate | 2025 |
| 52B Courtyard DN9 Ltd | Real estate | 2025 |
| 53 Bewdley Road Management Company Limited | Households | 2006 |
| 53SR Askl & Sons Ltd | Real estate | 2026 |
| 54 Barnsbury Road Limited | Extraterritorial | 2004 |
| 54 Druid Street Limited | Wholesale & retail | 2020 |
| 55 Anderson Road Ltd | Real estate | 2020 |
| 55 Motors Ltd | Wholesale & retail | 2025 |
| 555 Sunrise Limited | Administrative & support | 2025 |
| 56 Investments Limited | Real estate | 2024 |
| 56 SQ Ltd | Real estate | 2026 |
| 567 Kitchen Limited | Hospitality | 2025 |
| 57 ST John Street Management Limited | Households | 2023 |
| 579 Chicken.Com Ltd | Hospitality | 2024 |
| 57L Limited | Extraterritorial | 2009 |
| 58 Greenhill Road Flat Management Company Limited | Households | 2009 |
| 58 Creative Ltd | Professional & scientific | 2024 |
| 58 Dovey Road Ltd | Real estate | 2024 |
| 58 Productions Limited | Information & communication | 2012 |
| 58 SEE Tea Limited | Wholesale & retail | 2021 |
| 58 Seeme Limited | Real estate | 2024 |
| 58 Supply Limited | Transport & logistics | 2025 |
| 58 Yardley Wood Road Management Company Limited | Real estate | 1997 |
| 58-60 Coventry Road Coleshill RTM Company Limited | Households | 2023 |
| 5874 Design Ltd | Information & communication | 2012 |
| 5874 Marketing Ltd | Professional & scientific | 2021 |
| 59 BCE Trading AS Storytellingforceos.Com Ltd | Education | 2024 |
| 59 Bowden Ltd | Real estate | 2026 |
| 59 Church Road Management Limited | Households | 2000 |
| 59-75 Sheepmoor Close RTM Company Limited | Households | 2021 |
| 59BC Askl & Sons Ltd | Real estate | 2026 |
| 59PARKSTREET Ltd | Real estate | 2024 |
| 5A Holdings Limited | Real estate | 2026 |
| 5A Investments Ltd | Real estate | 2017 |
| 5A Medics Ltd | Health & social care | 2022 |
| 5A Solutions Ltd | Information & communication | 2021 |
| 5B Group Limited | Construction | 2025 |
| 5B Prime Limited | Wholesale & retail | 2026 |