| About Change Limited | Windsor | 2003 |
| About Detailing Ltd | Milton Keynes | 2022 |
| About Eco Ltd | Newcastle Upon Tyne | 2024 |
| About Face Limited | Wokingham | 2017 |
| About Finance Limited | Woking | 2006 |
| About Grace PR Ltd | Kings Langley | 2020 |
| About Health Limited | Fareham | 2008 |
| About LAB LDN Limited | London | 2020 |
| About Line Developments Ltd | Dunmow | 2024 |
| About Mental Health Ltd | Bromsgrove | 2021 |
| About People Pro Ltd | Henfield | 2025 |
| About Planning Limited | Dundee | 2020 |
| About PR Limited | Leicester | 2023 |
| About Results Ltd | Poole | 2021 |
| About Return Ltd | Ashford | 2021 |
| About Roofing Ltd | Redhill | 2009 |
| About Sound and Vision Ltd. | London | 2015 |
| About That Growth Ltd | Aylesbury | 2024 |
| About the Big Picture Limited | London | 2019 |
| About the F Limited | Malmesbury | 2024 |
| About the Grey Ltd | Bristol | 2026 |
| About the Town CIC | Skelmersdale | 2019 |
| About Time Aviation Ltd | Tunbridge Wells | 2025 |
| About Words Limited | Par | 2003 |
| About YOU Events Ltd | Romford | 2016 |
| About-Turn Interim Management Limited | Doncaster | 2001 |
| About:Energy Limited | London | 2021 |
| Abouthospitality Limited | London | 2010 |
| Aboutmywill Ltd | Hereford | 2019 |
| Abouttyme Ltd | Lee-On-The-Solent | 2025 |
| Abouturn Consultancy Limited | Peterborough | 2023 |
| Above & Beyond (London) Ltd | New Eltham | 2010 |
| Above & Beyond Consulting (South West) Limited | Taunton | 2012 |
| Above & Beyond Creative Limited | London | 2012 |
| Above & Beyond Normal Ltd | Salisbury | 2014 |
| Above & Beyond Resilience Ltd | London | 2022 |
| Above ALL Else Limited | Ashford | 2023 |
| Above ALL Noise Limited | Kingswinford | 2023 |
| Above ALL Safety Consultants Ltd | Stoke-On-Trent | 2025 |
| Above ALL Shadows Ltd | Potters Bar | 2026 |
| Above and Below Structures Ltd | Cheadle | 2023 |
| Above and Beyond Bookkeeping Limited | Salisbury | 2015 |
| Above and Beyond Drone Services UK Ltd | Stamford | 2025 |
| Above and Beyond Lifts Ltd | Orpington | 2024 |
| Above and Beyond Marketing Services Ltd | Hereford | 2023 |
| Above and Beyond Media Group Limited | Wolverhampton | 2023 |
| Above and Beyond Mentoring Limited | Dalkeith | 2023 |
| Above and Beyond Public Relations Limited | Redditch | 2013 |
| Above and Beyond Solutions Ltd | Northampton | 2022 |
| Above Board Consulting Ltd. | Market Drayton | 2017 |
| Above Construction Limited | St. Albans | 2018 |
| Above Consulting Ltd | Hertford | 2015 |
| Above Difference Limited | Chelmsford | 2017 |
| Above Ground Ltd | Shipley | 2020 |
| Above Ground Surveys Ltd | London | 2024 |
| Above Interiors Limited | Horley | 2023 |
| Above PAR Ltd | London | 2016 |
| Above PAR Translations Limited | Thatcham | 2023 |
| Above Studio Limited | Harrow | 2025 |
| Above the Bar Consultants Limited | Reading | 2022 |
| Above the Bolt Ltd | Sutton Coldfield | 2026 |
| Above the Cloud Consultancy Ltd | Wirral | 2018 |
| Above the Clouds Consultancy Ltd | Northampton | 2023 |
| Above the Clouds Studio Limited | London | 2025 |
| Above the Line Limited | Malvern | 2018 |
| Above the MUD Productions Ltd | London | 2024 |
| Above the Parapet Ltd | Ringwood | 2022 |
| Above Title Production Finance Limited | London | 2020 |
| Above Zero Landscape Architecture Ltd | Birkenhead | 2022 |
| ABOVE10X Ltd | Sible Hedingham | 2016 |
| Abovo Business Services Limited | Bridlington | 2015 |
| Abovo Group Limited | Kettering | 2019 |
| Abovo Structural Engineers Ltd | Norwich | 2020 |
| Aboyne Project Delivery Ltd | Aboyne | 2023 |
| ABP (Accounts Bookkeeping Payroll) Limited | Birmingham | 2021 |
| ABP Accountancy Services Limited | Wolverhampton | 2010 |
| ABP Accounting Ltd | London | 2024 |
| ABP Advisory Ltd | Welling | 2021 |
| ABP Advisory Services Limited | Warrington | 2026 |
| ABP Architectural Services Ltd | St. Neots | 2010 |
| ABP Aviation Limited | Stockport | 2016 |
| ABP Business Solutions Limited | Harrow | 2014 |
| ABP Construction Services Limited | Stowmarket | 2005 |
| ABP Consultancy Limited | Chrishall | 2010 |
| ABP Consultancy Properties Ltd | Saffron Walden | 2017 |
| ABP Contracting Ltd | Darwen | 2025 |
| ABP Design and Management Limited | Harlow | 2021 |
| ABP Invest Limited | London | 2015 |
| ABP Law Ltd | Alcester | 2026 |
| ABP Marine Environmental Research Limited | London | 1985 |
| ABP Medical Billing Limited | Cheadle | 2012 |
| ABP Mezzanine Holdco UK Limited | London | 2006 |
| ABP Operations Services Ltd | Marlow | 2022 |
| ABP Smiles Limited | Buckhurst Hill | 2022 |
| ABP Solutions Limited | Warrington | 2016 |
| ABP Subholdings UK Limited | London | 2006 |
| ABP Truck Engineering Ltd | Wisbech | 2020 |
| ABP Work Services Limited | Tugby | 2025 |
| Abp-Tbs Partnership Limited | Irlam | 2000 |
| Abph Limited | | 1970 |