| 020202 Limited | Financial services | 2017 |
| 1 Fore Street (Trowbridge) Management Limited | Households | 2018 |
| 1 Haynes Road Management Company Limited | Households | 2017 |
| 10TEN Electrical Ltd | Construction | 2019 |
| 11 Cross Street (Trowbridge) Management Company Limited | Households | 2018 |
| 1138 Digital Creativity Limited | Information & communication | 2020 |
| 1505 Group Ltd | Real estate | 2019 |
| 18 Portway Frome (Management) Limited | Households | 1989 |
| 195 Cheltenham Road B Ltd | Construction | 2025 |
| 195 Cheltenham Road TF Ltd | Construction | 2025 |
| 20 Degrees Ltd | Real estate | 2011 |
| 20 the Elms Management (RTM) Company Limited | Households | 2014 |
| 20,000 Voices | Arts & recreation | 1998 |
| 2020 Display Limited | Administrative & support | 2019 |
| 22 the Halve (Trowbridge) Management Company Limited | Extraterritorial | 2012 |
| 229 Frome Road Trowbridge Limited | Households | 1990 |
| 26A Melton Road Management Company Limited | Households | 2012 |
| 27LITTLETHINGS Ltd | Manufacturing | 2025 |
| 3/5 Bradford Road Trowbridge Management Company Limited | Real estate | 2010 |
| 31 Wingfield Road Ltd | Households | 2017 |
| 33 Victoria Road Management Company Limited | Real estate | 2015 |
| 4 Roundstone Street (Trowbridge) Limited | Real estate | 2016 |
| 4 the Halve (Trowbridge) Management Limited | Households | 2018 |
| 40 Stallard Street (Trowbridge) Limited | Real estate | 2008 |
| 40-CONSTRUCTION Ltd | Professional & scientific | 2019 |
| 43 North Street (Calne) Management Company Limited | Real estate | 2002 |
| 49TH Street Property Limited | Real estate | 2021 |
| 4G Developments Ltd | Construction | 2014 |
| 4TUNE8 Limited | Administrative & support | 2014 |
| 5 Oceans Yacht Management Ltd | Professional & scientific | 2025 |
| 50 Frome Road Management Company Limited | Real estate | 2001 |
| 52 Catherine Street Frome RTM Company Limited | Households | 2022 |
| 6067 Limited | Hospitality | 2024 |
| 64 Wyke Road Limited | Households | 2016 |
| 7 Days Trowbridge Ltd | Wholesale & retail | 2022 |
| 72 Park Street (Trowbridge) Management Company Limited | Households | 2005 |
| 9 to 10 Limited | Other services | 2023 |
| 96 Enterprises Limited | Professional & scientific | 2014 |
| A & T Mould Limited | Hospitality | 2009 |
| A B Compliance Services Ltd | Professional & scientific | 2018 |
| A B Drylining Ltd | Construction | 2015 |
| A Cleaner Exterior Ltd | Administrative & support | 2022 |
| A Cooksey & Sons Ltd | Administrative & support | 2009 |
| A E Dent Removal Limited | Wholesale & retail | 2012 |
| A F Richard Housing Ltd | Construction | 2025 |
| A J Wakely Ltd | Financial services | 2016 |
| A M Hobbs Firearms Limited | Wholesale & retail | 2002 |
| A N Heating Limited | Construction | 2008 |
| A S Woodward Limited | Construction | 2023 |
| A Star Cover Teaching Ltd | Administrative & support | 2026 |
| A Star Restoration Ltd. | Administrative & support | 2002 |
| A Tall Long Legged Bird Limited | Professional & scientific | 2026 |
| A Wilson Plumbing & Heating Engineers Ltd | Construction | 2010 |
| A&J VEG Limited | Wholesale & retail | 2026 |
| A&V Transport Group Ltd | Transport & logistics | 2025 |
| A&W Partners Ltd | Administrative & support | 2022 |
| A-Class Media Ltd | Professional & scientific | 2022 |
| A.N. Building Contractors Limited | Construction | 2003 |
| AA Auto Specialist Limited | Wholesale & retail | 2025 |
| AAH Accounting Limited | Professional & scientific | 2012 |
| AAH Property Investment Ltd | Real estate | 2022 |
| Aaron Morris Developments Ltd | Construction | 2020 |
| Abbey Dore Wealth Ltd | Real estate | 2023 |
| Abbey Electricals of Bath Ltd | Construction | 2010 |
| Ablah Ltd | Real estate | 2025 |
| Able CAB Ltd | Transport & logistics | 2023 |
| Able Motorcycle Training Ltd | Education | 2019 |
| Above the Rest Roofing Ltd | Construction | 2014 |
| Absolute Beauty Clinic Limited | Other services | 2010 |
| ABU GAS & Plumbing Limited | Construction | 2014 |
| AC Business Solutions Limited | Administrative & support | 2018 |
| AC Offshore Engineering Limited | Professional & scientific | 2017 |
| Academy VP Ltd | Education | 2021 |
| Access Avidity Ltd | Administrative & support | 2019 |
| Accessway Management Ltd | Extraterritorial | 2014 |
| Ace Stays Ltd | Real estate | 2026 |
| Ace Tiling Bath Limited | Construction | 2014 |
| Acedroid Ltd | Information & communication | 2012 |
| Acuhair HQ Ltd | Other services | 2025 |
| AD Site Management Services Ltd | Construction | 2025 |
| Adam Legg Audio Ltd | Information & communication | 2017 |
| Adams Property Ltd. | Real estate | 2017 |
| Adcroft Mews Management Company Ltd | Households | 2017 |
| Ade's Personal Training Ltd | Health & social care | 2019 |
| Adelisa Ltd | Transport & logistics | 2023 |
| Adoption West | Health & social care | 2018 |
| Ador Developments Ltd | Construction | 2017 |
| Adore Developments Ltd | Construction | 2019 |
| Advance Financial Services Limited | Administrative & support | 1995 |
| Adventure Nomad Ltd | Extraterritorial | 2024 |
| Adventure With LIV Ltd | Administrative & support | 2025 |
| Advetec Holdings Limited | Manufacturing | 2007 |
| Advetec International Ltd | Extraterritorial | 2016 |
| Advetec Leasing Limited | Manufacturing | 2015 |
| Advetec North America Limited | Extraterritorial | 2020 |
| Aegir Technical Services Limited | Construction | 2000 |
| Aeronautique Associates Limited | Information & communication | 2012 |
| AES Batteries UK Limited | Wholesale & retail | 2022 |
| AES Plumbing and Heating SW Ltd | Construction | 2026 |
| Aesthetic Medical Ltd | Other services | 2024 |