| A M M Healthcare Ltd | St. Helens | 2019 |
| A M M Professional Limited | Stourport-On-Severn | 2013 |
| A M Medical Consultants Ltd | Hereford | 2022 |
| A M Medical Services Midlands Limited | West Midlands | 2017 |
| A M Ortho Limited | Eastbourne | 2016 |
| A M Psychotherapy Limited | London | 2025 |
| A M S Chiropractic Limited | Stocksfield | 2008 |
| A M Samy Limited | Northampton | 2007 |
| A M Shuttleworth Ltd | Annan | 2022 |
| A M Stairlifts Limited | Nottingham | 2011 |
| A M Stewart Anaesthesia Limited | Winchester | 2019 |
| A M Stubbs Limited | Waterlooville | 2008 |
| A Males Perspective Ltd | Harrow | 2025 |
| A Mann Health Consortium Ltd | Preston | 2024 |
| A Marasigan Limited | Peterborough | 2020 |
| A Maravela Ltd | Haverhill | 2015 |
| A Markova Ltd | Poole | 2022 |
| A MAY Holdings Ltd | Eye | 2025 |
| A Mcauliffe Limited | Bray On Thames | 2022 |
| A Mcclement Imaging Ltd | Stevenage | 2025 |
| A Mccormick Anaesthesia Limited | Romsey | 2020 |
| A Mcdonagh Medical Limited | Aylesbury | 2016 |
| A Mcelrath Limited | Kelso | 2018 |
| A Mcewan Associates Limited | Epsom | 2011 |
| A MCG Imaging Limited | Belfast | 2022 |
| A Mcgregor Private Clients Limited | Northampton | 2014 |
| A Meaningful Life Limited | London | 2026 |
| A Medicare Ltd | Norwich | 2016 |
| A Medin Care Service Limited | Benfleet | 2019 |
| A Mehta Consultancy Services Ltd | Stockport | 2018 |
| A Million Dreams Ltd | Narberth | 2018 |
| A Million Hugs and Kisses Ltd | Bournemouth | 2023 |
| A Mindful Solution CIC | Beverley | 2024 |
| A Mitchell Medical Services Limited | Motherwell | 2015 |
| A Modern Topic Ltd | Bristol | 2020 |
| A Month From NOW Ltd | Durham | 2020 |
| A Morgan Private Limited | Leeds | 2013 |
| A Mosea Limited | Harlow | 2013 |
| A Moses Surgical Limited | Crieff | 2020 |
| A Mother’S Touch CIC | London | 2022 |
| A Moustafa Ltd. | Hove | 2024 |
| A Munzar Limited | Wakefield | 2009 |
| A N Bhatti Ltd | Huddersfield | 2025 |
| A N Fleming Ltd | East Molesey | 2003 |
| A N J Consultancy Ltd | Braintree | 2016 |
| A N K Private Surgery Limited | Milton Keynes | 2015 |
| A N Masood Ltd | Birmingham | 2016 |
| A N Optical Limited | Chippenham | 2015 |
| A N S Medical Ltd | Poole | 2015 |
| A N Sharma Ltd | Hounslow | 2024 |
| A Nagi Practice Ltd | Derby | 2025 |
| A Nasser Limited | Derby | 2021 |
| A Nazerali Co Ltd | Peterborough | 2023 |
| A Ncube Ltd | Sunderland | 2014 |
| A New Beginning Solution-Focused Hypnotherapy Limited | Stockport | 2024 |
| A New Dawn Ltd | Barnsley | 2025 |
| A New Dawne Limited | Doncaster | 2016 |
| A New Leaf Limited | London | 2015 |
| A New Venture Limited | Radstock | 2008 |
| A New YOU (Brighton) Limited | London | 2010 |
| A NG EYE Surgery Ltd | Droitwich | 2019 |
| A O Agwunobi Limited | Wilmslow | 2011 |
| A O Medical Services Limited | Wigan | 2023 |
| A O Optics Limited | London | 2006 |
| A O'Regan Ltd | Waltham Cross | 2003 |
| A Optics Limited | Birmingham | 2020 |
| A Ormrod Limited | London | 2016 |
| A Osman Consultancy Ltd | London | 2026 |
| A P B Medical ( N I ) Limited | Newtownards | 2020 |
| A P C Health Limited | Lytham St. Annes | 2009 |
| A P Clinic Ltd | Gravesend | 2025 |
| A P Cymru - Creating Opportunities & Celebrating Difference Ltd | Cardiff | 2012 |
| A P Dental Associates Limited | Hove | 2005 |
| A P Mann Limited | Harrow | 2014 |
| A P Ministry Ltd | Castle Bromwich, Birmingham | 2023 |
| A P Shields Limited | Liverpool | 2020 |
| A Panagiotou Ltd | Maidstone | 2012 |
| A Pandya Ltd | Leicester | 2022 |
| A Parekh Ltd | Gloucester | 2022 |
| A Parfitt Ltd | Bournemouth | 2012 |
| A Passion for Africa | Kent | 1992 |
| A Patel Eyecare Limited | Dewsbury | 2014 |
| A Pathway to Development in Life Coaching Ltd. | Worcester | 2023 |
| A Patrice Limited | Weston-Super-Mare | 2009 |
| A Paul Innovations Ltd | Billingham | 2015 |
| A Paul Limited | Rugby | 2021 |
| A PAY Limited | Oxford | 2010 |
| A Peel Limited | Birmingham | 2009 |
| A Pereira Ltd | Gateshead | 2014 |
| A Perfect JOB Limited | London | 2015 |
| A Person Centred Ltd | Stalybridge | 2023 |
| A Petrescu Ltd | Gateshead | 2013 |
| A Phakey Ltd | Leeds | 2017 |
| A Pharm Locum Ltd | Huddersfield | 2013 |
| A Pickering Ltd | Gateshead | 2014 |
| A Place to Call OUR Own Limited | Newark | 2003 |
| A Plus Care & Support Services Ltd | Manchester | 2023 |
| A Plus Caring Services Ltd | Sawbridgeworth | 2023 |
| A Plus Dental Limited | London | 2024 |
| A Plus Healthcare Services Ltd | London | 2012 |