| APL Inclusion Limited | Ringmer | 2014 |
| Aplocksmith Limited | Manchester | 2025 |
| Aplomb Limited | London | 1989 |
| Aplord Limited | Southend On Sea | 1990 |
| Aplus Mobile Ipswich Ltd | Ipswich | 2024 |
| Aplus Properties Services Limited | Luton | 2019 |
| Aplus+ Cleaning/Maintenance Services Limited | Derby | 2025 |
| Aplusgroup Property Limited | London | 2014 |
| Apluslight Ltd | London | 2024 |
| Aplusrecruitment Ltd | London | 2018 |
| Aplym Limited | Gerrards Cross | 2014 |
| APM Bodyshops Ltd | Ilford | 2018 |
| APM JD Limited | Birmingham | 2016 |
| APM Partners Ltd | Birmingham | 2025 |
| APM Subs Ltd | Birmingham | 2025 |
| Apmc Property Management Limited | Dunfermline | 2020 |
| Apmcorp Services Ltd | Nottingham | 2019 |
| Apmg Consulting Ltd | Manchester | 2020 |
| Apml Consultancy Ltd | Darlington | 2023 |
| Apmp United Kingdom Development CIC | London | 2017 |
| Apmpuk Ltd | London | 2019 |
| Apms Transport Ltd | Corby | 2018 |
| Apna Virsa Organisation CIC | Slough | 2024 |
| Apni Awaz Ltd | Smethwick | 2025 |
| Apnw Ltd | Preston | 2025 |
| APO (SW) Ltd | Exeter | 2022 |
| APO Barber Ltd | Kettering | 2023 |
| APO Cleaning Services Limited | London | 2019 |
| APO Fade Ltd | Birmingham | 2026 |
| APO New Ltd | New Milton | 2024 |
| APO Norfolk Ltd | Attleborough | 2026 |
| Apo-Tsang Limited | Bushey Heath | 2017 |
| Apoblu Ltd | Telford | 2019 |
| Apogee Energy Services Ltd | Stonehaven | 2011 |
| Apogee Running Ltd | Dumbarton | 2019 |
| Apoise Ltd | Letchworth Garden City | 2017 |
| Apole Engineering Company Limited | Cobham | 1965 |
| Apollo Beauty Ltd | Alton | 2024 |
| Apollo Blinds Bristol & Bath Ltd | Glasgow | 2023 |
| Apollo Business Broking Limited | Derby | 2019 |
| Apollo Centre Limited | Hounslow | 2012 |
| Apollo Cleaning Services Cheshire Limited | Winsford | 2013 |
| Apollo Collective Limited | London | 2021 |
| Apollo Commercial Cleaning Ltd | Dartford | 2023 |
| Apollo Corporate Solutions Ltd | London | 2025 |
| Apollo Data Solutions Ltd | Weybridge | 2022 |
| Apollo DRY Cleaners Limited | London | 1998 |
| Apollo Enterprise Strategies UK Ltd | London | 2025 |
| Apollo Hair & Beauty Studio Ltd | Peterborough | 2025 |
| Apollo Insolvency Limited | St. Albans | 2015 |
| Apollo Insurance Brokers Limited | Bury | 1967 |
| Apollo Interactive Limited | Alexandria | 2022 |
| Apollo Labs Ltd | Lutterworth | 2025 |
| Apollo Maintenance Services Limited | Bristol | 2019 |
| Apollo Marketing Solutions Ltd | Stevenage | 2019 |
| Apollo Music Wirral Ltd | Wallasey | 2019 |
| Apollo Nails & Spa (CH) Limited | Romford | 2022 |
| Apollo Nails Bishop Ltd | Bishop'S Stortford | 2025 |
| Apollo Nails Limited | Ilford | 2020 |
| Apollo Nails Studio Ltd | Chelmsford | 2026 |
| Apollo Pretium Limited | Stevenage | 2022 |
| Apollo Private Wealth Services Limited | London | 2018 |
| Apollo Quality Tradesman Ltd | Montrose | 2025 |
| Apollo Retail Limited | Stoke-On-Trent | 2023 |
| Apollo Solutions Wiltshire Ltd | Swindon | 2023 |
| Apollo Spa Services Ltd | London | 2025 |
| Apollo Sport Injury and Health Ltd | Telford | 2017 |
| Apollo Sport Wellness Ltd | Telford | 2017 |
| Apollo Tanning & Beauty Ltd | Hove | 2012 |
| Apollo Taunton Limited | Taunton | 2025 |
| Apollo Taxi Claims Ltd | Manchester | 2026 |
| Apollo Tria Limited | Westhoughton | 2014 |
| Apollo Tria Tattooing Ltd | Bolton | 2023 |
| Apollo's Path Ltd | Brighton | 2026 |
| Apollonia Finance Corp Limited | Swansea | 2025 |
| Apollyon Trading Limited | Ruislip, | 2022 |
| Apolo PVT Ltd | Glasgow | 2023 |
| Apos 27 Ltd | Basildon | 2023 |
| Apos CUT Ltd | Tamworth | 2023 |
| Apos Kebab House (Nantwich) Ltd | Crewe | 2018 |
| Apostille % Ltd | London | 2015 |
| Apostle International Limited | London | 2024 |
| Apostles Barber Shop Ltd | London | 2018 |
| Apostolic Action Chapel | Barking | 2008 |
| Apostolic Assembly UK Ltd | Crawley | 2019 |
| Apostolic Evangelical Church (UK) | Barking | 2005 |
| Apostolic Evangelical Ministries Limited | Coventry | 2018 |
| Apostolic Faith Mission Birmingham Central Assembly Limited | Walsall | 2006 |
| Apostolic Faith Mission NI. Shalom Tabernacle CIC | Bangor | 2024 |
| Apostolic Faith Mission of Africa - Cambridge Limited | Cambridge | 2015 |
| Apostolic Fellowship NI Limited | Enniskillen | 2024 |
| Apostolic Praise Centre Limited | Stoke-On-Trent | 2026 |
| Apostolic Touch Network | London | 2020 |
| Apothecare ME Ltd | Cambridge | 2023 |
| Apothecary 87 Barbers & Shop (Doncaster) Ltd | Doncaster | 2022 |
| Apothecary 87 Barbers & Shop Ltd | Doncaster | 2020 |
| Apothecary Beauty Limited | Doncaster | 2019 |
| Apothecary Limited | Lancs | 2003 |
| Apower 3 - Coaching, Training & Mind Freedom Ltd | Bishop'S Stortford | 2017 |
| App Distribution Ltd | Salisbury | 2013 |