| "Eveerge" Limited | Manufacturing | 1958 |
| 'R'-Elp Ltd. | Administrative & support | 2017 |
| 'Sgwennu Limited | Arts & recreation | 2015 |
| 'Weddingbooker.Com' Limited | Arts & recreation | 2018 |
| ( Japan ) Dumosen Agricultural Co., Ltd | Mining & quarrying | 2026 |
| (N W S) N.Wardrop.Services Ltd | Construction | 2020 |
| (UK) MAE Solutions Limited | Construction | 2023 |
| 0 Degree Growth Sleep Technology Co., Ltd | Wholesale & retail | 2021 |
| 00159871 Limited | Professional & scientific | 1919 |
| 00164947 Limited | Extraterritorial | 1920 |
| 00199971 PLC | | 1924 |
| 00213635 Public Limited Company | | 1926 |
| 00255014 Limited | Wholesale & retail | 1931 |
| 00294395 Limited | Professional & scientific | 1934 |
| 00317293 PLC | | 1936 |
| 00325270 PLC | | 1937 |
| 00462306 Limited | Manufacturing | 1948 |
| 00518653 Limited | | 1953 |
| 00524665 | Professional & scientific | 1953 |
| 00599512 Limited | Professional & scientific | 1958 |
| 00815217 Limited | | 1964 |
| 00928766 Limited | Manufacturing | 1968 |
| 010376 Limited | Administrative & support | 2021 |
| 01189835 Limited | Manufacturing | 1974 |
| 01488182 Limited | Manufacturing | 1980 |
| 03267990 Limited | Information & communication | 1996 |
| 040 Ltd | Wholesale & retail | 2025 |
| 04018253 Limited | Arts & recreation | 2000 |
| 04336125 Limited | Professional & scientific | 2001 |
| 05094817 Ltd | | 2004 |
| 05208985 Limited | Wholesale & retail | 2004 |
| 05313160 Ltd | Administrative & support | 2004 |
| 05526776 Limited | Wholesale & retail | 2005 |
| 05931896 Limited | Professional & scientific | 2006 |
| 060571 Ltd | Administrative & support | 2020 |
| 061049 Limited | Administrative & support | 2020 |
| 06123946 Limited | Professional & scientific | 2007 |
| 07157157 Limited | Information & communication | 2010 |
| 08688047 Ltd | Construction | 2013 |
| 09625732 Ltd | Information & communication | 2015 |
| 09788767 Limited | Information & communication | 2015 |
| 09929106 Ltd. | Information & communication | 2015 |
| 0WANABLE Ltd | Administrative & support | 2022 |
| 1 - 30 Heol Staughton RTM Company Ltd | Households | 2022 |
| 1 - 4 Petherton Mews RTM Company Limited | Households | 2024 |
| 1 2 3 PAW Ltd | Other services | 2016 |
| 1 Ace Security Ltd | Education | 2011 |
| 1 Call Care C.I.C. | Health & social care | 2019 |
| 1 CAM CIC | Education | 2025 |
| 1 Click Services Limited | Information & communication | 2008 |
| 1 Demontalt Place Management Company Limited | Professional & scientific | 2000 |
| 1 Fairfield Avenue Management Ltd | Households | 2018 |
| 1 Force Recruitment Ltd | Administrative & support | 2024 |
| 1 Money Group Ltd | Wholesale & retail | 2024 |
| 1 Motion Digital Production Ltd | Information & communication | 2022 |
| 1 Rawden Place Freehold Ltd | Households | 2019 |
| 1 Residential Limited | Real estate | 2014 |
| 1 Stop Graphics Ltd | Professional & scientific | 2019 |
| 1 to 4 Lynmouth Court RTM Company Limited | Households | 2025 |
| 1-10 ST Catherine’S Mews Management Company Limited | Households | 2017 |
| 1-18 Anton Flats Management Ltd | Households | 2024 |
| 1-9 Glan Hafren Barry RTM Company Limited | Households | 2016 |
| 10 Church Road (Penarth) Management Company Limited | Professional & scientific | 2008 |
| 10 Cranbrook Street Ltd | Real estate | 2020 |
| 10 Fontygary Ltd | Real estate | 2024 |
| 10 Gordon Road Management Limited | Real estate | 2001 |
| 10 Green Street Limited | Manufacturing | 2021 |
| 10 Guru Ltd | Professional & scientific | 2025 |
| 10 Holdings Limited | Financial services | 2023 |
| 10 Ninian Road Management Company Limited | Households | 2019 |
| 10 Rules Ltd | Wholesale & retail | 2025 |
| 10 TY Draw Road Limited | Households | 2004 |
| 10 Walk Ltd | Real estate | 2020 |
| 100 Connaught Road Management Limited | Households | 2005 |
| 100 Global Resources Ltd | Construction | 2023 |
| 100 Keys Ltd | Construction | 2019 |
| 100 Voices Limited | Information & communication | 2020 |
| 100% Clean Ltd | Administrative & support | 2017 |
| 1000 Heads Salons Ltd | Other services | 2018 |
| 1000GBP Ltd | Arts & recreation | 2023 |
| 1001 Fire and Security Systems Limited | Extraterritorial | 2003 |
| 10037393 Ltd | Information & communication | 2016 |
| 101 Clouds Hill RD Ltd | Households | 2023 |
| 101 Mhgs Miles Limited | Hospitality | 2012 |
| 101 Penarth Road Management Company Limited | Households | 2007 |
| 10153713 Ltd | Information & communication | 2016 |
| 102 Monthermer Road (Cardiff) Limited | Households | 2014 |
| 103 Paget Street Management Limited | Households | 2022 |
| 103-109 Kimble Road (London) Limited | Households | 2009 |
| 104 Claude Road RTM Company Limited | Households | 2009 |
| 104206 Limited | Transport & logistics | 1909 |
| 105 the Highway Management Company Limited | Real estate | 2010 |
| 10597101 Ltd | Administrative & support | 2017 |
| 106 Consult Ltd | Professional & scientific | 2019 |
| 10625481 Ltd | Information & communication | 2017 |
| 10693496 Ltd | Arts & recreation | 2017 |
| 107 Cathedral Road Limited | Professional & scientific | 1992 |
| 107 Fidlas Road Limited | Extraterritorial | 2005 |
| 108 AM Ltd | Real estate | 2025 |
| 1080 Properties Ltd | Real estate | 2020 |