| A Head in a HAT Limited | London | 2017 |
| A Heart of ALL CIC | Wrexham | 2022 |
| A Helping Hand (Scotland) Limited | Westhill | 2016 |
| A Helping Hand - Edinburgh Ltd | Newbridge | 2024 |
| A Helping Hand Commercial Cleaning Limited | Treorchy | 2023 |
| A Hendriks Limited | Watlington | 2012 |
| A Hepworth Consulting Limited | Warrington | 2026 |
| A Herbert Tree Services Ltd | Cobham | 2026 |
| A Higgins Hire Limited | Castleford | 2019 |
| A Hilton Ltd | Stotfold | 2012 |
| A Horne Properties Ltd. | Tain | 2010 |
| A Hulbert Ltd | Hope Valley | 2021 |
| A Human Perspective Ltd | Sutton | 2022 |
| A Human Resource Ltd | London | 2024 |
| A I Blajut Limited | Wembley | 2026 |
| A I M S Partnership Limited | Ashford | 1992 |
| A I R South East Limited | Hastings | 2017 |
| A I Response Ltd | Birmingham | 2005 |
| A I Security Limited | Stockport | 2020 |
| A I Source Ltd | London | 2024 |
| A I Surveying Ltd | West Yorkshire, Huddersfield | 2017 |
| A Intelligence Squared Limited | Coventry | 2025 |
| A J & R C Brown Limited | Frome | 2014 |
| A J & T Mailing Limited | Hertford | 2009 |
| A J (UK) Consultancy Limited | Dagenham | 2013 |
| A J Accounting Solutions Limited | Much Hadham | 1999 |
| A J Advisory Consultants Ltd | Harrow | 2014 |
| A J Aerials Ltd | Glasgow | 2017 |
| A J Ashcroft & Sons Ltd | Southport | 2015 |
| A J Asset Management Limited | London | 2007 |
| A J Batchelor Occupational Therapy Ltd | Cosham | 2015 |
| A J Berry Window Cleaning Services Limited | Woodbridge, | 2014 |
| A J Bratt Ltd | Frodsham | 2024 |
| A J Brown & Sons Limited | Great Bookham, Leatherhead | 2010 |
| A J Butler Ltd | Wrotham Heath | 2013 |
| A J Cleaning Contractors Limited | Hertford | 2019 |
| A J Clegg Limited | Bacup | 2002 |
| A J Collins Limited | Thetford | 2002 |
| A J Company Formations Limited | Much Hadham | 1999 |
| A J Counselling Ltd | Leigh On Sea | 2011 |
| A J Couplings Limited | Abergavenny | 2008 |
| A J Distribution Limited | Exmouth | 2004 |
| A J Dolton Ltd | Salisbury | 2017 |
| A J E Rail Ltd | Liverpool | 2016 |
| A J Events Ltd | Bristol | 2006 |
| A J F Seymours Limited | Brighton | 2010 |
| A J Flook Window Cleaning Ltd | Newport | 2018 |
| A J Flower Limited | Hook | 2018 |
| A J Foodies Ltd | Peterborough | 2019 |
| A J Fraser HLD Limited | Edinburgh | 2012 |
| A J Garden Services (2025) Limited | Telford | 2025 |
| A J Gardening Limited | Sutton | 2003 |
| A J Gardening Maintenance Limited | East Grinstead | 2018 |
| A J Gardens & Grounds Care Ltd | Haywards Heath | 2024 |
| A J Gordon Limited | Stockport | 2014 |
| A J Harrison Training Limited | Rochdale | 2009 |
| A J Hipkiss Transport Services Ltd | Wolverhampton | 2016 |
| A J Hire Cars Ltd | Glasgow | 2020 |
| A J Hutton Limited | London | 2007 |
| A J Iles & Sons Plant Limited | Wiltshire | 2006 |
| A J Infinity Ltd | London | 2023 |
| A J Ireland Ltd. | Glasgow | 2003 |
| A J J Scaffolding Limited | Glasgow | 2009 |
| A J K Productions Limited | London | 2012 |
| A J Kelly & Co (UK) Ltd | Chester | 2003 |
| A J Kingston-James HR Limited | Minehead | 2013 |
| A J Landscapes and Driveways Limited | Nottingham | 2019 |
| A J Landscapes Ltd | Leeds | 2026 |
| A J Landscaping & Building (Cheshire) Ltd | Crewe | 2021 |
| A J Leigh Solutions Limited | Manchester | 2023 |
| A J M Cars Limited | Croydon | 2019 |
| A J M Consultancy Solutions Ltd | Liverpool | 2025 |
| A J Marsh Building Surveyors Limited | | 1996 |
| A J Martin Associates Limited | Newcastle Upon Tyne | 2012 |
| A J Maysons & Company Limited | Wimborne | 1959 |
| A J Michael Ltd | Borehamwood | 2020 |
| A J Mobility Limited | Milton Keynes | 1993 |
| A J Mowers Ltd | Bristol | 2016 |
| A J Murch Ltd | South Molton | 2017 |
| A J N Pallets Limited | Gateshead | 2009 |
| A J Network Ltd | Huddersfield | 2012 |
| A J Outdoor Maintenance Ltd | Liverpool | 2026 |
| A J P Consultants (UK) Limited | Gillingham | 2011 |
| A J P Hartford Limited | Northwich | 2007 |
| A J People Plus Ltd | Bournemouth | 2023 |
| A J Plant Hire & Rentals Ltd | Newport | 2024 |
| A J Pritchard Ltd | Dunfermline | 2018 |
| A J Procter Cleaning Contractors Company Limited | Weybridge | 2007 |
| A J Pugh Wealth Management Limited | Wolverhampton | 2014 |
| A J Pyrotechnics Limited | New Romney | 2008 |
| A J Randle Consultancy Limited | Gerrards Cross | 2022 |
| A J Recruit Ltd | Leighton Buzzard | 2024 |
| A J Removals (Worcester) Limited | Worcester | 2013 |
| A J Ripley Limited | Bradford | 2011 |
| A J Robson Marine Ltd | Isles Of Scilly | 2017 |
| A J Rooke Limited | Cardiff | 2014 |
| A J Safety Services Ltd | Harlow | 2024 |
| A J Sargeant & Co Limited | Sheffield | 2017 |
| A J Security NE Ltd | Sunderland | 2021 |
| A J Tours & Travels UK Ltd | Wembley | 2009 |