| A&R Productions Limited | London | 2018 |
| A&R Professional Accountants Ltd | Worcester | 2026 |
| A&R Solicitors Ltd | Hayes | 2016 |
| A&R Test Solutions Limited | Birmingham | 2024 |
| A&R Veterinary Services Ltd | Huddersfield | 2024 |
| A&Rl Consultancy Ltd | Luton | 2020 |
| A&Rme Ltd. | London | 2014 |
| A&S Asset Finance Ltd | London | 2022 |
| A&S Auto M.O.T & Service Ltd | Leicester | 2025 |
| A&S Business Support Limited | Manchester | 2022 |
| A&S Claims Management Limited | Leamington Spa | 2012 |
| A&S Consultancy Ltd | Warrington | 2024 |
| A&S Consulting Services Ltd | Chertsey | 2024 |
| A&S Digital Ltd | Neath | 2023 |
| A&S Digital Marketing Ltd | Leatherhead | 2018 |
| A&S Employment Services Limited | Stone | 2025 |
| A&S ENG Services Limited | Ilford | 2015 |
| A&S Engineering and Repairs Ltd | Llangefni | 2025 |
| A&S Enterprises EOT Limited | Burton On Trent | 2024 |
| A&S Financials Ltd | Dewsbury | 2017 |
| A&S Health Solutions Ltd | London | 2025 |
| A&S Infinitum Ltd | Hyde | 2024 |
| A&S International Consultancy Ltd | London | 2024 |
| A&S Legal Ltd | London | 2019 |
| A&S Linnett Ltd | Chelmsford | 2025 |
| A&S Management Consulting Ltd | London | 2025 |
| A&S Management Solutions Ltd | Hounslow | 2026 |
| A&S Nickalls Ltd | Luton | 2020 |
| A&S Partners Ltd | Rotherham | 2018 |
| A&S Pearman Holdings Limited | Liss, Hampshire | 2021 |
| A&S PIX Limited | London | 2013 |
| A&S Sandher Limited | Croydon | 2019 |
| A&S Stanford Limited | Hook | 2023 |
| A&S UK Consulting Limited | Redhouse Park | 2023 |
| A&S. T Ltd | Gravenhurst | 2021 |
| A&Sw Solutions Ltd | Loughborough | 2026 |
| A&T Accountants Ltd | Hornchurch | 2015 |
| A&T Beauty and Aesthetic Limited | London | 2025 |
| A&T Coate Company Limited | Cirencester | 2021 |
| A&T Consultancy (NE) Ltd | Gateshead | 2022 |
| A&T Financial Services Limited | Twickenham | 2023 |
| A&T Financial Solutions Ltd | West Drayton | 2025 |
| A&T Fintech Ltd | Manchester | 2023 |
| A&T Food Control Laboratory Limited | London | 2023 |
| A&T Geoservices Limited | Lincoln | 2006 |
| A&T Legal Ltd | London | 2018 |
| A&T Maintenance Woodworking Machinery Limited | Nuneaton | 2024 |
| A&T Partners Limited | Manchester | 2024 |
| A&T Pharmacare Ltd | Northolt | 2024 |
| A&T Property Landscaping Limited | Retford | 2023 |
| A&T Realisations Limited | Castle Street | 2008 |
| A&T Royall Ltd | London | 2019 |
| A&Tb Consultants Limited | Crooke | 2023 |
| A&U Accountancy Limited | London | 2014 |
| A&V Completions Ltd | Middlesbrough | 2022 |
| A&V Consultancy Ltd | Cirencester | 2016 |
| A&V Corporate Services Ltd | Hounslow | 2024 |
| A&V Lindberg WP Ltd | Billingham | 2024 |
| A&W Education Ltd | Exmouth | 2025 |
| A&W Engineering Limited | Mansfield | 2025 |
| A&W Projects Limited | Westerham | 2023 |
| A&Y Consultancy Ltd | London | 2023 |
| A&Y Consulting Ltd | Chalfont St. Giles | 2024 |
| A&Y Engineers Ltd | Norwich | 2021 |
| A&Y Equipment Group Limited | Bristol | 2013 |
| A&Y Landscapes Ltd | Ivybridge | 2020 |
| A&Y Management Ltd | Dartford | 2019 |
| A&Z Accountancy Limited | London | 2016 |
| A&Z Advisors Limited | London | 2020 |
| A&Z Business Consultant Ltd | Kington | 2024 |
| A&Z Business Services Ltd | London | 2026 |
| A&Z Business Trading Ltd | Dover | 2018 |
| A&Z Consulting Ltd | Borehamwood | 2023 |
| A&Z Financials Ltd | Nottingham | 2024 |
| A&Z MRF Ltd | Lutterworth | 2024 |
| A&Z Visa Consultant Ltd | Hamilton | 2024 |
| A'Becket Consulting Limited | Portsmouth | 2022 |
| A'Court Williams Limited | Cheltenham | 1999 |
| A'Dil Limited | Oxford | 2018 |
| A'Furgato Ltd | Welling | 2020 |
| A'Wale Decor Ltd | London | 2024 |
| A'Wrld Ltd | London | 2020 |
| A, L & Co Management Consulting Ltd | Birmingham | 2019 |
| A,B &D Consultants Limited | Leicester | 2018 |
| A-1 Accountants Ltd | Barrow-Upon-Humber | 2011 |
| A-2-Z Financial Management Limited | Kendal | 2007 |
| A-642 Architecture Ltd | Brackley | 2025 |
| A-A Freelance Limited | Glasgow | 2023 |
| A-Accountancy Ltd | London | 2020 |
| A-Accounts Ltd | London | 2011 |
| A-Advance Limited | London | 2023 |
| A-Advice Limited | Enfield | 2019 |
| A-Assistance Ltd | London | 2023 |
| A-B Administration Limited | Rushden | 2018 |
| A-Belco Industrial Accessories Limited | Northumberland | 1990 |
| A-Bridge Group Limited | Bexleyheath | 2024 |
| A-C-T International Limited | London | 2016 |
| A-Check Aviation Ltd | London | 2023 |
| A-Class Media Ltd | Trowbridge | 2022 |
| A-Connect Accountancy Ltd | Leicester | 2025 |