| Abstract Property Group Limited | London | 2019 |
| Abstract Services Limited | Nottingham | 2021 |
| Abstract Topco Limited | Leeds | 2024 |
| Abstractions Holdings Ltd | Harlow | 2018 |
| Abstrade Ltd | Preston | 2021 |
| Abstrakt Holdings Limited | Bromsgrove | 2023 |
| Abswa Holdings Limited | Bramley | 2024 |
| Absworth Ltd | London | 2018 |
| ABT Auto Investments Limited | London | 2017 |
| ABT Capital Advisers Ltd | London | 2025 |
| ABT Capital Limited | London | 2017 |
| ABT Corporate Finance Limited | Bristol | 2016 |
| ABT Holding Ltd | Manchester | 2024 |
| ABT Investments Group Limited | London | 2024 |
| ABT L7 Ltd | London | 2025 |
| ABT Renfield Ltd | Glasgow | 2025 |
| ABT Trust Limited | Barnet | 2021 |
| Abtec Group Holdings Ltd | Market Harborough | 2024 |
| Abtec Nexus Bidco Limited | Brighton | 2025 |
| Abtec Nexus Topco Limited | Brighton | 2025 |
| Abtpv Limited | London | 2025 |
| ABU Exchange Ltd | Birmingham | 2019 |
| ABU Holdings Limited | Belfast | 2021 |
| ABU Rayyan Group Ltd | Blackburn | 2024 |
| Abudhabideal Ltd | London | 2025 |
| Abuela Holdings Limited | Cardiff | 2021 |
| Abuelo Holdings Limited | London | 2021 |
| Abuhaya Limited | London | 2025 |
| Abuncia Limited | Harrow | 2016 |
| Abundance Finance Ltd | Fleet | 2020 |
| Abundance Nominee Limited | London | 2021 |
| Abundant Finance Limited | Solihull | 2016 |
| Abundant Holdings Limited | Hailsham | 2026 |
| Abundant Ventures Ltd. | Norwich | 2020 |
| Abundant Wealth Group Limited | Lincoln | 2026 |
| Abundantia Holdings Ltd | Crewe | 2023 |
| Abundat Holdings Limited | Chelmsford | 2020 |
| Abundia Plastics Europe Limited | Belfast | 2020 |
| Abundita Ltd | Selkirk | 2023 |
| Abus Holdco Limited | London | 2026 |
| Abus Holding Ltd | Harrogate | 2025 |
| ABV Trade Ltd | London | 2025 |
| Abvr Finance Limited | Hook | 2017 |
| Abvr Group Limited | Hook | 2017 |
| ABW Investment Group Ltd | Liverpool | 2020 |
| Abwinvestments Ltd | London | 2019 |
| Abworld Ltd | London | 2021 |
| ABX Investing Ltd | Rochdale | 2025 |
| Abyasa Holdings Limited | Southampton | 2025 |
| Abydul Global Ventures Ltd | London | 2026 |
| Abynix Ltd | London | 2011 |
| Abyssinia Business Group Ltd | London | 2026 |
| Abyssinian Bidco Limited | London | 2018 |
| Abyssinian Midco Limited | London | 2018 |
| Abyssinian Topco Limited | London | 2018 |
| ABZ Alpha Ltd | Cardiff | 2023 |
| ABZ Assets Ltd | Aberdeen | 2022 |
| ABZ Holdings Ltd | Taunton | 2023 |
| Abzorb U Holdings Ltd | Brighouse | 2019 |
| Abzu Ltd | London | 2026 |
| AC (Awrp) Holdco 1 Limited | London | 2018 |
| AC (Awrp) Holdco 2 Limited | London | 2018 |
| AC (Awrp) Holdco 3 Limited | London | 2018 |
| AC 2025 Holdings Limited | Walsall | 2025 |
| AC Aggregates Group Ltd | Rotherham | 2022 |
| AC Alto B Limited | Wokingham | 2025 |
| AC Alto Limited | Wokingham | 2024 |
| AC Boal Ltd | Norwich | 2015 |
| AC Business Consultant Ltd | Poole | 2012 |
| AC Canada Water Fusion Ltd | London | 2025 |
| AC Claims Consultants Ltd | Basingstoke | 2015 |
| AC Community Homes Ltd | Exeter | 2026 |
| AC Developments (Torquay) Ltd | Exeter | 2026 |
| AC Electrical Holdings Limited | Rochdale | 2025 |
| AC Electrical Services Group Limited | Blackpool | 2016 |
| AC Empire Holdings Ltd | London | 2026 |
| AC Family Office Limited | Gainsborough | 2020 |
| AC Family Protection Ltd | Rotherham | 2026 |
| AC Finance Limited | Middlesbrough | 2000 |
| AC Financial Planning Limited | Hornchurch | 2022 |
| AC Financial Services Ltd | Dagenham | 2019 |
| AC Gold Holdings Limited | Stirling | 2018 |
| AC Group Advice Ltd | London | 2024 |
| AC Group of Companies Ltd | Maidenhead | 2024 |
| AC Holding (Kent) Ltd | Keston | 2025 |
| AC Holding Bidco Limited | London | 2024 |
| AC Holding Midco 1 Limited | London | 2024 |
| AC Holding Midco 2 Limited | London | 2024 |
| AC Holdings & Investments Limited | Peterborough | 2024 |
| AC Holdings (Fylde) Limited | Blackpool | 2019 |
| AC Holdings 2025 Limited | London | 2025 |
| AC Holdings International Ltd | Romford | 2021 |
| AC Huica Limited | Taunton | 2025 |
| AC Immo Ltd | London | 2025 |
| AC Industries Limited | High Wycombe | 2026 |
| AC INS Consultants Ltd | Nottingham | 2014 |
| AC Investco Ltd | Milton Keynes | 2022 |
| AC Investment Holdings Limited | London | 2019 |
| AC Jackson Holdings Ltd | Tarporley | 2023 |
| AC London Properties Ltd | London | 2021 |