| ABN Financial Limited | Accrington | 2005 |
| ABN Mortgages Limited | Caterham | 2016 |
| ABN Ventures Ltd | East Ham | 2025 |
| Abodco. Realty Limited | Manchester | 2024 |
| Abode Brokers Ltd | London | 2016 |
| Abode Finance Ltd | Horsham | 2018 |
| Abode Financial Ltd | Rotherham | 2023 |
| Abode Financial Planning Limited | Cirencester | 2022 |
| Abode Financial Services Limited | Crosby | 2017 |
| Abode Financing Ltd | Southampton | 2019 |
| Abode Futures Ltd | St Albans | 2024 |
| Abode Group Holdings Ltd | Cardiff | 2020 |
| Abode Mortgage & Protection Solutions Limited | Newark | 2017 |
| Abode Mortgage Services Limited | Rotherham | 2023 |
| Abodian Limited | Stoke Bishop | 2022 |
| Aboh Ltd | Leicester | 2026 |
| Aboki Financial Services (AFS) UK Ltd | Orpington | 2026 |
| Abol Micro Finance UK Limited | London | 2024 |
| Abomex SP UK Limited | London | 2018 |
| Abomex UK Limited | London | 2018 |
| Abona Funding Limited | London | 2022 |
| Abora Investments Limited | Northampton | 2020 |
| Aboris Group Ltd | Torquay | 2025 |
| Abosimi Ltd | Manchester | 2025 |
| Abouelela Innovations Ltd | Birmingham | 2025 |
| Abouharb Holdings Ltd | Lisburn | 2026 |
| Abound Aerospace Limited | Northampton | 2024 |
| About Claims Ltd | London | 2020 |
| About Corporate Finance Limited | London | 2010 |
| About Lending Limited | Cardiff | 2021 |
| About Lending SPV1 Limited | Cardiff | 2021 |
| About Mortgages Ltd | Horsham | 2018 |
| About Time Button Limited | Warrington | 2023 |
| Above & Beyond Mortgages (Yorkshire) Limited | Wetherby | 2020 |
| Above and Beyond Care Properties Limited | Coventry | 2021 |
| Above and Beyond Financial Planning Ltd | Wigan | 2025 |
| Above Dynamics Limited | Coventry | 2017 |
| Aboveline Holdings Limited | Crewe | 2024 |
| Aboyne-Clyde Rubber Estates of Ceylon Limited | Bradford | 1912 |
| Aboyo Property Group Limited | London | 2021 |
| ABP Acquisitions UK Limited | London | 2006 |
| ABP Bonds UK Limited | London | 2006 |
| ABP Global Ltd | London | 2022 |
| ABP Group Holdings Ltd | Potters Bar | 2026 |
| ABP Holdco Limited | London | 2025 |
| ABP Investments Limited | Swindon | 2018 |
| ABP Management Services Limited | Pewsey | 2022 |
| ABP Midco UK Holdings Limited | London | 2020 |
| ABP Midco UK Limited | London | 2020 |
| ABP Mortgage Solutions Ltd | Leicester | 2022 |
| ABP Mortgages Limited | Bargoed | 2015 |
| ABP39 Limited | London | 2021 |
| Abpa Holdings Limited | London | 2011 |
| Abport Limited | Teignmouth | 1973 |
| ABR Capital Partners Ltd | Stanmore | 2020 |
| ABR Hospitality Ltd | Edinburgh | 2024 |
| ABR Partners Holdings Ltd | London | 2026 |
| ABR Partners Limited | London | 2021 |
| Abra Group Limited | Altrincham | 2022 |
| Abraaj Advisers UK Limited | London | 2008 |
| Abraham & Dobell Ltd. | Hampshire | 2005 |
| Abraham Accords Prosperity Group Limited | Billericay | 2025 |
| Abraham Associates London Limited | London | 2026 |
| Abraham Moon Holdings Limited | Leeds | 2005 |
| Abrahams & Carlisle (Holdings) Limited | Bradford | 2018 |
| Abrahams & Park Investment Ltd | Glasgow | 2023 |
| Abram Partnership Ltd | Cardiff | 2009 |
| Abramelin Consulting Ltd | Cardiff | 2016 |
| Abrams Investments Ltd | Liverpool | 2023 |
| Abrason Limited | Liverpool | 2018 |
| Abraxas Capital Management Limited | London | 2002 |
| Abraxas CM Limited | London | 2013 |
| Abray Services Limited | Northwich | 2001 |
| Abrdn (General Partner Cred) Limited | London | 2014 |
| Abrdn (General Partner Epgf) Limited | Edinburgh | 1999 |
| Abrdn (IL Infrastructure Debt) GP Limited | London | 2022 |
| Abrdn Alternative Funds Limited | | 1988 |
| Abrdn Alternative Investments Limited | London | 1964 |
| Abrdn Client Management Limited | Edinburgh | 1999 |
| Abrdn Diversified Income and Growth PLC | Edinburgh | 1898 |
| Abrdn European Logistics Income PLC | London | 2017 |
| Abrdn European Sustainable Infrastructure GP V Limited | London | 2024 |
| Abrdn Founder Co Limited | Edinburgh | 2021 |
| Abrdn Fund Managers Limited | London | 1962 |
| Abrdn Global Sustainable Infrastructure IV (Deeside) a Limited | London | 2024 |
| Abrdn Global Sustainable Infrastructure IV (Deeside) B Limited | London | 2024 |
| Abrdn Global Sustainable Infrastructure IV UK Latam a Limited | London | 2025 |
| Abrdn Global Sustainable Infrastructure IV UK Latam B Limited | London | 2025 |
| Abrdn Global Sustainable Infrastructure IV UK Limited | London | 2024 |
| Abrdn Holdings Limited | Edinburgh | 1983 |
| Abrdn Investment Management Limited | | 1990 |
| Abrdn Investments Group Limited | London | 1983 |
| Abrdn Investments Holdings Europe Limited | London | 1993 |
| Abrdn Investments Limited | Edinburgh | 1987 |
| Abrdn Japan Investment Trust PLC | Kings Orchard | 1998 |
| Abrdn Life and Pensions Limited | London | 1998 |
| Abrdn New Dawn Investment Trust PLC | Bristol | 1989 |
| Abrdn Portfolio Investments Limited | Edinburgh | 2009 |
| Abrdn Smaller Companies Income Trust PLC | Aberdeen | 1992 |
| Abreo Holdings Ltd | London | 2021 |