| Aqueous Pro Ltd | Polegate | 2024 |
| Aqueous Productions Ltd | Croydon | 2026 |
| Aqueous Solutions Limited | Witney | 2007 |
| Aquercia Ltd | Chester | 2015 |
| Aqui Control (United Kingdom) Limited | Nottingham | 2011 |
| Aquib Ltd | London | 2021 |
| Aquidian Limited | Northwich | 2022 |
| Aquidity Ltd | Liverpool | 2023 |
| Aquifer Energy Ltd | Loughborough | 2024 |
| Aquifer Solutions Limited | Packington | 2019 |
| Aquifolia Limited | Leicester | 2016 |
| Aquifolia Rising Ltd | London | 2025 |
| Aquil Ltd | Barking | 2015 |
| Aquila & Partners Accountancy Ltd | London | 2025 |
| Aquila Accountancy Limited | Felixstowe | 2019 |
| Aquila Accountants Ltd | Bournemouth | 2015 |
| Aquila Advisory Limited | Richmond | 2010 |
| Aquila Architecture Limited | Waterlooville | 2022 |
| Aquila Associates Ltd | London | 2014 |
| Aquila Aviation Limited | | 1992 |
| Aquila Capital Limited | Leeds | 2000 |
| Aquila Commercial Ltd | Mildenhall | 2026 |
| Aquila Commodities Limited | Tring | 2012 |
| Aquila Consultancy Ltd | Neston | 2023 |
| Aquila Consulting Limited | St Albans | 2003 |
| Aquila Defence Consultancy Ltd | Warrington | 2019 |
| Aquila Design Boutique Limited | Glasgow | 2025 |
| Aquila Design Ltd | Bristol | 2012 |
| Aquila Energy Ltd | London | 2004 |
| Aquila Financial Services Ltd | Hindhead | 2025 |
| Aquila Fire Solutions Limited | Manchester | 2018 |
| Aquila Forensics Ltd. | London | 2014 |
| Aquila Global Ventures Ltd | London | 2023 |
| Aquila Golf Ltd | Altrincham | 2022 |
| Aquila Group Limited | Bristol | 2020 |
| Aquila Group Ventures Limited | London | 2026 |
| Aquila Horizon Ltd | London | 2025 |
| Aquila International Consultancy Limited | London | 2019 |
| Aquila International Consulting Ltd | Farnham | 2020 |
| Aquila Legal Limited | Hitchin | 2023 |
| Aquila Management Solutions Ltd | Ashford | 2020 |
| Aquila Marketing Agency Limited | Aberdeen | 2025 |
| Aquila MGA Holdings Limited | Liverpool | 2019 |
| Aquila Minerals Limited | Chesterfield | 2015 |
| Aquila Nova Holdings Limited | Stockton-On-Tees | 2026 |
| Aquila Nuclear Engineering Limited | Twyford | 2010 |
| Aquila Partners (Scotland) Ltd | Glenrothes | 2024 |
| Aquila Procurement Services Ltd | Horsham | 2017 |
| Aquila Property Group Limited | Ramsgate | 2009 |
| Aquila Qualitas Ltd | Portsmouth | 2019 |
| Aquila Risk Management Limited | Wirral | 2025 |
| Aquila Services Group PLC | London | 2014 |
| Aquila Treasury and Finance Solutions Limited | London | 2024 |
| Aquilae Ltd. | Bramley, Tadley | 2016 |
| Aquilanta Limited | Ashford | 2018 |
| Aquilegia Accounting Limited | Cambridge | 2019 |
| Aquilex Limited | London | 2012 |
| Aquilia Limited | London | 2020 |
| Aquilina Services Ltd | Woodford Avenue | 1993 |
| Aquilius Limited | London | 2017 |
| Aquilla Europe Ltd | Thame | 2009 |
| Aquilla Limited | London | 2009 |
| Aquillo Accounting Ltd | Caterham | 2016 |
| Aquillo Consultancy Ltd | London | 2012 |
| Aquilo Air Limited | Southampton | 2018 |
| Aquilo Marketing Limited | Sheffield | 2024 |
| Aquilo Renewable Energy Limited | Liverpool | 2025 |
| Aquilofts Ltd | Mitcham | 2025 |
| Aquilon Power Solutions Ltd | Fraserburgh | 2024 |
| Aquilone Limited | St Neots | 2018 |
| Aquilty Consulting Limited | Barnard Castle | 2018 |
| Aquilum Ltd | Broxbourne | 2025 |
| Aquinas Consulting Ltd | London | 2025 |
| Aquinas Law Limited | Covent Garden | 2016 |
| Aquincum Ventures Ltd | Salford | 2023 |
| Aquios Consultants Ltd | Keymer | 2020 |
| Aquious Consulting Ltd | Wakefield | 2022 |
| Aquipu Financial Consultants Limited | Leiston | 2004 |
| Aquira Ltd | London | 2025 |
| Aquire Digital Ltd. | Rochdale | 2019 |
| Aquisita Legal Limited | Norwich | 2025 |
| Aquisitions Investment Group Ltd | Brentford | 2015 |
| Aquisolve Services Ltd | Bromley | 2013 |
| Aquissa Ltd | Warwickshire | 1999 |
| Aquist Corporate Finance Limited | Glasgow | 2019 |
| Aquitania Accounting Limited | Birmingham | 2015 |
| Aquitas Law Ltd | London | 2012 |
| Aquitron Limited | Esher | 2002 |
| Aquium Limited | Ashford | 2017 |
| Aquiver Limited | Polesworth | 2016 |
| Aquivium Advisors Ltd | London | 2026 |
| Aqumen Consulting Limited | Rickmansworth | 2018 |
| Aqumen Group Ltd | Kington | 2012 |
| Aqumen QS Services Limited | Durham City | 2020 |
| Aquobex Limited | Ocean Way | 2010 |
| Aqura Bioscience Ltd | Bolton | 2025 |
| Aquro Limited | Windsor | 2025 |
| Aquuileus Limited | Stratford Upon Avon | 2009 |
| Aquula Limited | Hindhead | 2007 |
| Aqva Hydro Ltd | Sleaford | 2020 |