| Ampco 115 Limited | Nottingham | 2015 |
| Ampco 147 Limited | Leigh On Sea | 2019 |
| Ampco 148 Limited | Leicester | 2020 |
| Ampco 150 Limited | Grantham | 2019 |
| Ampco 159 Limited | Horsham | 2021 |
| Ampco 168 Limited | Sutton-In-Ashfield | 2023 |
| Ampco 170 Limited | Grantham | 2023 |
| Ampco 171 Limited | Nottingham | 2025 |
| Ampdebtco Limited | London | 2020 |
| Ampec Holdings Limited | Leyland | 2017 |
| Amped Ventures Limited | Swindon | 2020 |
| Ampere Brokers Ltd | London | 2024 |
| Ampere Finance Ltd | London | 2024 |
| Amperio Topco Limited | London | 2026 |
| Ampersand Leasing One Limited | London | 2019 |
| Ampersand Management UK Ltd | London | 2025 |
| Ampersand Partnership Limited | Weybridge | 2011 |
| Amphitrite Underwriting Limited | Harrow | 2018 |
| Amphius Limited | Bury St. Edmunds | 2005 |
| Amphlett Holdings Ltd | Shanklin | 2026 |
| Amphora Aromatics Holdings Limited | Bristol | 2015 |
| Ampiria Energy Latam Ltd | London | 2025 |
| Ampl Loans Ltd | Canterbury | 2026 |
| Ampla Consumer Finance Limited | London | 2017 |
| Ampla Finance Holdings Limited | London | 2019 |
| Ampla Litigation Services Limited | London | 2021 |
| Ampla Loans Limited | London | 2019 |
| Ampla Operations Limited | London | 2019 |
| Amplan Limited | Backwell | 2011 |
| Ample Finance Limited | Newport | 2018 |
| Ample Mortgages Limited | Newport | 2020 |
| Ample Wealth Limited | Gateshead | 2026 |
| Amplehold Limited | London | 2025 |
| Ampleton Group Ltd | Abingdon | 2017 |
| Amplia Capital Limited | London | 2025 |
| Amplica Ltd | Reading | 2024 |
| Amplifi Capital (U.K.) Limited | London | 2013 |
| Amplified Holdings Limited | Romford | 2023 |
| Amplified Insights Limited | Portishead | 2021 |
| Amplify Holdings Group Ltd | London | 2024 |
| Amplify Investments Ltd | Rochester | 2014 |
| Amplify Mortgages Limited | Sheffield | 2023 |
| Amplifycfo Ltd | Bidford On Avon | 2013 |
| Amplifychange | Bath | 2020 |
| Amplio Capital Ltd | Tunbridge Wells | 2025 |
| Amplio Excolo Limited | Kingskerswell | 2012 |
| Amplitude Bidco Limited | Swindon | 2025 |
| Amplitude Holdings Limited | London | 2023 |
| Amplitude Midco Limited | Swindon | 2025 |
| Amplitude Resources Ltd | London | 2025 |
| Amplitude Topco Limited | Swindon | 2025 |
| Amplo Asset Finance Limited | Sandbach | 2024 |
| Amplo Capital Limited | Salford | 2021 |
| Amplo Commercial Finance Limited | Sandbach | 2020 |
| Amplo Group Limited | Nantwich | 2021 |
| Amplo Mortgages & Financial Solutions Limited | Nantwich | 2016 |
| Amplus Limited | Exmouth | 2013 |
| Amplus-X Ltd | London | 2025 |
| Amplynt Group Limited | London | 2026 |
| Ampm Capital Ltd | Hailsham | 2021 |
| Ampm Group Ltd | Hailsham | 2026 |
| Ampm Holdings Ltd | London | 2026 |
| Ampol UK Holdings Limited | Altrincham | 2025 |
| Ampollard Holdings Ltd | Hailsham | 2023 |
| Ampr Finance Ltd | London | 2022 |
| Ampr Network Ltd | London | 2022 |
| Ampris Limited | Peterborough | 2011 |
| Ampthill Town FC Holdings Limited | Ampthill | 2025 |
| Amptron Group Limited | Nottingham | 2024 |
| Ampw Investments Ltd | Birmingham | 2026 |
| Ampyr Distributed Energy Finco Limited | Letchworth Garden City | 2024 |
| Ampyr Idea Assetco UK Ltd | Letchworth Garden City | 2023 |
| Amqas Property Group Ltd | Stockport | 2025 |
| AMR & AMR Investments Limited | Swansea | 2022 |
| AMR BIO Limited | London | 2025 |
| AMR Capital Group Limited | London | 2024 |
| AMR Consulting and Trading Ltd | Ilkeston | 2025 |
| AMR Duncombe Ltd | Coventry | 2026 |
| AMR Financial Management Limited | Newbury | 1992 |
| AMR GP Holdings Limited | Towcester | 2021 |
| AMR Group (Holdings) Limited | King'S Lynn | 2016 |
| AMR Hold.Co Limited | Gloucester | 2026 |
| AMR House Ltd | Exeter | 2024 |
| AMR Northern Limited | Rotherham | 2019 |
| AMR Performance Group Limited | Towcester | 2022 |
| AMR Property Holdings Limited | High Wycombe | 2021 |
| AMR Wealth Management Limited | Thames Ditton | 2024 |
| Amr-Lightace Group (UK) Ltd | Basildon | 2026 |
| Amrak (Europe) Limited | Broadstairs | 2017 |
| Amrali Group Ltd | Stamford | 2026 |
| Amram Wealth Limited | 3 Dorset Rise | 2016 |
| Amramfx & Remittence Limited | London | 2025 |
| Amramfx Limited | Ruislip | 2025 |
| Amras Holdings Ltd | Manchester | 2024 |
| Amrav Agecare Holdings Ltd | Watford | 2022 |
| Amrav Talea Ltd | Watford | 2025 |
| Amraya Holding Limited | London | 2026 |
| Amraya Investments Limited | London | 2026 |
| Amresh Limited | Stanmore | 2016 |
| Amrit Lila (UK) Ltd | Woodford Green | 2025 |