| Acuity Financial Consultancy Limited | Lichfield | 2003 |
| Acuity Financial Planning Ltd | Bishop Middleham | 2023 |
| Acuity Global Investments Limited | London | 2023 |
| Acuity Investors Ltd | Wirral | 2025 |
| Acuity Law Holdings Limited | Cardiff | 2023 |
| Acuity Professional Advisers Ltd | Bexhill | 2003 |
| Acuity Professional Nominees Ltd | Bexhill | 2015 |
| Acuity Selective Finance Limited | Borehamwood | 2011 |
| Acuity VIC Ltd | London | 2022 |
| Acuk Management Ltd | Watford | 2022 |
| Acult London Limited | London | 2014 |
| Acuma Limited | Exeter | 2001 |
| Acume UK Limited | Cleckheaton | 2009 |
| Acumen 4 Holdings Limited | St Albans | 2020 |
| Acumen Acquisition Limited | Salford | 2025 |
| Acumen Associate Financial Services Ltd | Newport | 2004 |
| Acumen Bank Ltd | London | 2006 |
| Acumen Business & Compliance Limited | Poole | 2018 |
| Acumen Financial Advisers Limited | Oldham | 2012 |
| Acumen Financial Partnership Limited | Burscough | 2006 |
| Acumen Financial Services Ltd | Glasgow | 2022 |
| Acumen Global Partnership Limited | Annesley | 2022 |
| Acumen Independent Financial Advisers Limited | Oldham | 1999 |
| Acumen Independent Financial Planning Limited | Birmingham | 2013 |
| Acumen Insurance Services Limited | London | 2003 |
| Acumen Investment & Pension Solutions Ltd | Darlington | 2020 |
| Acumen Logistics Group Holdings Limited | Swan Valley | 2020 |
| Acumen Logistics Group Limited | Swan Valley | 2003 |
| Acumen Mortgages Limited | Crawley | 2022 |
| Acumen Pensions and Investments Limited | Oldham | 2019 |
| Acumen Realty Hawks Ltd | Ilford | 2022 |
| Acumen Technology Group Ltd | Glasgow | 2025 |
| Acumenity Limited | Hereford | 2017 |
| Acumensa Limited | London | 2007 |
| Acumon UK Holdco Limited | London | 2025 |
| Acumon UK Holdings Limited | London | 2025 |
| Acumon UK Limited | London | 2023 |
| Acura Homes Ltd | Northwich | 2026 |
| Acura Mortgage & Life Ltd | Cowbridge | 2024 |
| Acura Wealth Ltd | Cowbridge | 2021 |
| Acuris Bidco Limited | London | 2019 |
| Acuris Holdings Limited | London | 2019 |
| Acuris International Limited | London | 2019 |
| Acurisk Limited | Wellington | 2024 |
| Acuto Holdings Ltd | London | 2021 |
| Acuvent Holdings Limited | Dundee | 2018 |
| Acuvera Capital Limited | London | 2017 |
| Acuwave Limited | Halifax | 2017 |
| ACV Holdings Limited | Batley | 2023 |
| ACW Consulting Services Ltd | London | 2019 |
| ACW Ltd | London | 2021 |
| ACW Protection Ltd | Ilkeston | 2024 |
| Acws Consultancy Limited | Bury St. Edmunds | 2022 |
| AD & JG Holdings Limited | Kettering | 2021 |
| AD & Sons Commercial Holdings Limited | London | 2024 |
| AD (Europe) Finance | London | 2002 |
| AD (London Road) Holdings Limited | London | 2023 |
| AD (Primrose Road) Holdings Limited | London | 2023 |
| AD + Ventures Ltd | Beaconsfield | 2015 |
| AD 01 Limited | Bolton | 2015 |
| AD Aggregator Platform Limited | Wellingborough | 2015 |
| AD Astra Actuarial Limited | London | 2026 |
| AD Astra Corporate Limited | London | 2022 |
| AD Astra Enterprises Limited | Waterlooville | 2025 |
| AD Astra Financial Services Ltd | Slough | 2021 |
| AD Astra Holdco Limited | London | 2025 |
| AD Astra Management Group Ltd | Manchester | 2022 |
| AD Astra Management Ltd | Lincoln | 2024 |
| AD Astra Nursery Ltd | Edinburgh | 2025 |
| AD Coelum Consultants Limited | Ashford | 2016 |
| AD Commercial Mortgages & Development Finance Ltd | Caerphilly | 2025 |
| AD Company Holding UK Ltd | Enfield | 2025 |
| AD Consult Holding Ltd | London | 2017 |
| AD Digital Holdings Ltd | London | 2026 |
| AD Esse Holdings Ltd | London | 2018 |
| AD European Investments Limited | London | 1992 |
| AD FIN Services Limited | London | 1992 |
| AD Finance Group Limited | Sheffield | 2024 |
| AD Finance Ltd | Fareham | 2026 |
| AD Financial Services Limited | Halesowen | 2021 |
| AD Fosher Holding Limited | Erith | 2025 |
| AD Frost Consulting Ltd | Carterton | 2017 |
| AD Global Services Ltd | Birmingham | 2020 |
| AD HOC Holdings (UK) Ltd | London | 2016 |
| AD Hold Co Limited | Consett | 2023 |
| AD Holdco 1 Limited | Guildford | 2024 |
| AD Holding Company Limited | Edinburgh | 2008 |
| AD Honorem Capital Limited | London | 2019 |
| AD Horizon Holdings Ltd | Batley | 2025 |
| AD HSP Ltd | Pershore | 2019 |
| AD Infinitum Holdings Ltd | London | 2026 |
| AD Investments International Ltd | Hull | 2023 |
| AD Jackton 2 Limited | Glasgow | 2022 |
| AD Jackton 5 Limited | Glasgow | 2022 |
| AD M Capital Investments Limited | Harlow | 2026 |
| AD Management Advantage Limited | Canterbury | 2019 |
| AD Medical Holdings Ltd | Manchester | 2025 |
| AD Meliora Capital Limited | London | 2025 |
| AD Mitchell Financial Planning Ltd | | 2008 |
| AD Overseas (Canada) Limited | London | 1988 |