| (Un)Masked Ltd | Professional & scientific | 2021 |
| 01884741 Limited | Water & waste | 1985 |
| 01956753 Limited | Wholesale & retail | 1985 |
| 01CENT Ltd | Real estate | 2017 |
| 07VIP Ltd | Wholesale & retail | 2026 |
| 1 - 3 Lindbergh Flats Management Co Ltd. | Households | 2018 |
| 1 Heyford Terrace (Freehold) Limited | Households | 2017 |
| 1 York Avenue Management Company Limited | Households | 2003 |
| 10 Healthcare Ltd | Health & social care | 2009 |
| 10 Past 10 Bar Ltd | Hospitality | 2025 |
| 10 Queens Road Management Company Limited | Households | 1994 |
| 10 Star Haulage Ltd | Transport & logistics | 2025 |
| 1129 Promotions Ltd | Arts & recreation | 2023 |
| 12 Homes Ltd | Real estate | 2025 |
| 123 School Green Road Freshwater (IOW) Limited | Households | 2004 |
| 12719422 Ltd | Hospitality | 2020 |
| 13 Clytha SQ Limited | Other services | 2025 |
| 1314 Events Ltd | Other services | 2024 |
| 14/15 Lind Street Residents Association Limited | Households | 1985 |
| 14LOCKS Stores Limited | Wholesale & retail | 2026 |
| 15-21 Sovereign Quarter Right to Manage Limited | Professional & scientific | 2011 |
| 168 New Rainbow Ltd | Hospitality | 2022 |
| 17-19 Hall Street RTM Company Ltd | Real estate | 2010 |
| 1844 Ltd | Health & social care | 2010 |
| 19 Church Street Ventnor (Management Company) Limited | Households | 2008 |
| 19 Hills CIC | Health & social care | 2024 |
| 1926 Holdings Ltd | Financial services | 2025 |
| 1A Drainflow (IOW) Limited | Other services | 2003 |
| 1ST Choice Roofing Contractors Ltd | Construction | 2019 |
| 1ST Fit Tyre Centre Newport Ltd | Wholesale & retail | 2025 |
| 208 Corporation Road Management Company Limited | Households | 2024 |
| 21 RUG Street Ltd | Manufacturing | 2023 |
| 216 Digital Ltd | Wholesale & retail | 2012 |
| 216 Property Ltd | Real estate | 2021 |
| 21ST C Limited | Administrative & support | 2014 |
| 234 Glos Road Limited | Real estate | 2019 |
| 24 Alltyryn Road Limited | Households | 1992 |
| 24/7 IT Limited | Information & communication | 2012 |
| 24/7 Powered Access Support Limited | Professional & scientific | 2018 |
| 244NAZ Ltd | Hospitality | 2026 |
| 245 Yahya's Diner Limited | Hospitality | 2024 |
| 24A to D High Street (Management) Limited | Households | 2020 |
| 24AUTOMOTORZ Ltd | Wholesale & retail | 2024 |
| 24COUNTRYCARE Ltd | Health & social care | 2025 |
| 24REXQ Ltd | Transport & logistics | 2025 |
| 25 Beckford Road Freehold Limited | Households | 2015 |
| 26 George Street RTM Company Limited | Extraterritorial | 2013 |
| 2EE Ltd | Real estate | 2025 |
| 3 Jays Services Ltd | Construction | 2022 |
| 3 Lamp Management Ltd | Arts & recreation | 2025 |
| 3 Little Chums Ltd | Education | 2025 |
| 3 Way Properties Limited | Real estate | 2016 |
| 303030 Ltd | Transport & logistics | 2020 |
| 30IPS Limited | Manufacturing | 1989 |
| 32 Fontenoy Road Limited | Households | 2007 |
| 32 Llanthewy Ltd | Households | 2021 |
| 345 Project Management Ltd | Professional & scientific | 2000 |
| 360 Design Consultants Ltd | Construction | 2019 |
| 360BUBBLE Ltd | Manufacturing | 2018 |
| 36ONE Ltd | Administrative & support | 2020 |
| 3G.CO.UK. Limited | Information & communication | 2003 |
| 3J'S Bathroom Products Limited | Wholesale & retail | 2008 |
| 3LPS Developments Ltd | Extraterritorial | 2019 |
| 3LR Lighting Ltd | Wholesale & retail | 2019 |
| 3NMS Property Ltd | Real estate | 2021 |
| 3WF Ltd | Wholesale & retail | 2024 |
| 4 Leisure@Cwmbran Ltd | Real estate | 2018 |
| 4 Stow Park Crescent Newport Management Co Limited | Households | 1972 |
| 4 Trinity Road Management Company Limited | Real estate | 2017 |
| 40 Alexandra Road Management Limited | Households | 2003 |
| 4D'S Cleaning Ltd | Administrative & support | 2026 |
| 4ISLANDS Property Group Ltd | Real estate | 2026 |
| 4M Entertainment Ltd | Professional & scientific | 2024 |
| 4S&M Properties Limited | Real estate | 2026 |
| 4SIC Health Ltd | Wholesale & retail | 2022 |
| 4T9INE Ltd | Information & communication | 2025 |
| 4TEULU Limited | Real estate | 2024 |
| 5 ALL Saints Road Management Company Limited | Households | 1998 |
| 5 Rivers Hotels Limited | Real estate | 2004 |
| 5 Star HCW Ltd | Other services | 2018 |
| 5 Star IT Solutions Ltd | Information & communication | 2024 |
| 50/50 Music Limited | Information & communication | 2025 |
| 51 Commercial Street Limited | Construction | 2021 |
| 52 Lugley Street RTM Company Limited | Households | 2025 |
| 52 Morden Road Limited | Households | 1991 |
| 55 Uverdale Road Limited | Households | 2025 |
| 56ABC Woodland Road Management Company Ltd | Real estate | 2015 |
| 57 Tyres (Bridgend) Limited | Wholesale & retail | 2017 |
| 57 Tyres Limited | Wholesale & retail | 2015 |
| 58/14 Limited | Real estate | 2015 |
| 5STAR Vehicle Solutions Ltd | Wholesale & retail | 2016 |
| 66 George Street Management Company Limited | Households | 2004 |
| 75 Caerau Road Management Company Limited | Professional & scientific | 2005 |
| 75 Monkton Street Residents Company Limited | Households | 2000 |
| 77 West Street Ltd | Real estate | 2020 |
| 786 BU ALI Shah Qalandar Private Limited | Real estate | 2016 |
| 7CLOUDS Ltd | Information & communication | 2011 |
| 7T8S Promotions Ltd | Administrative & support | 2025 |
| 8 Alexandra Gardens (Freehold) Limited | Households | 2010 |
| 8 Mount Pleasant Limited | Administrative & support | 2016 |