| Alexandra Heating Services Trustee Company Limited | Salisbury | 2025 |
| Alexandra Herring Trading Limited | Liverpool | 2018 |
| Alexandra House 2025 Limited | Hull | 2025 |
| Alexandra House Care Services Limited | Kingswinford | 2003 |
| Alexandra Hunt Trading Ltd | Bath | 2015 |
| Alexandra Iuga Designs Ltd | Telford | 2025 |
| Alexandra James - Lawyers & Consultants Ltd | London | 2026 |
| Alexandra Johnson Interior Design Limited | Stamford | 2014 |
| Alexandra K. Limited | Leicester | 2013 |
| Alexandra Kaleniuk Immigration Consulting Ltd | Worcester | 2022 |
| Alexandra Koumis Ltd | Bristol | 2018 |
| Alexandra Lang Ltd | Ormskirk | 2025 |
| Alexandra Law Limited | Nottingham | 2023 |
| Alexandra LEE Consulting Limited | London | 2025 |
| Alexandra Leese Ltd | London | 2023 |
| Alexandra Lewis Family Law Limited | Oxford | 2017 |
| Alexandra Llewellyn Design Limited | London | 2010 |
| Alexandra Locksmiths Limited | London | 2004 |
| Alexandra Lodge (Management) Company Limited | Southport | 1983 |
| Alexandra Louise Green Limited | North Ferriby | 2024 |
| Alexandra Lunn Studio Ltd | London | 2019 |
| Alexandra Management Solutions Ltd | Surrey | 2014 |
| Alexandra Marrs Interior Design Ltd | Hull | 2023 |
| Alexandra Moss Photography Limited | Sandhurst | 2023 |
| Alexandra Murray-Zmijewski Limited | Woodstock | 2022 |
| Alexandra Newman Ltd | Cambridge | 2011 |
| Alexandra O. Dolan Art + Design Ltd | London | 2022 |
| Alexandra Palmer Copywriting Ltd | Solihull | 2021 |
| Alexandra Patrick Limited | Ashford | 2005 |
| Alexandra Photography and Marketing Ltd | Exmouth | 2025 |
| Alexandra Plowright Consulting Ltd | Spilsby | 2018 |
| Alexandra Public Relations Limited | London | 2013 |
| Alexandra Road Association Limited | Whitstable | 2015 |
| Alexandra Rojas Health Ltd | London | 2023 |
| Alexandra Rose Ltd | Milton Keynes | 2025 |
| Alexandra Securities Ltd | Stockport | 2015 |
| Alexandra Services (UK) Limited | Whetstone | 2000 |
| Alexandra Stanley Limited | London | 2018 |
| Alexandra Steed Urban Ltd | London | 2013 |
| Alexandra Tandy Limited | Waterlooville | 2010 |
| Alexandra Turton Employment Law Limited | London | 2017 |
| Alexandra VON Peltz Limited | London | 2020 |
| Alexandra Watson Ltd. | Margate | 2016 |
| Alexandra Wilson Interior Design Ltd | Rushden | 2016 |
| Alexandra Wood Art & Photography Limited | London | 2024 |
| Alexandra Young Design Ltd | Winchester | 2021 |
| Alexandra Zielaskiewicz Ltd | London | 2019 |
| Alexandra's Financial Management Group Ltd | Gateshead | 2018 |
| Alexandria Business Park Management Company Limited | Swadlincote | 2002 |
| Alexandria Eleta Minor Ltd | Edinburgh | 2025 |
| Alexandria Europe Limited | London | 2025 |
| Alexandria Hall Studio Ltd | London | 2021 |
| Alexandrian Hotels Limited | London | 1980 |
| Alexandrian Solutions Ltd | Kirkby Stephen | 2009 |
| Alexandrini Limited | Walsall | 2020 |
| Alexandrite Risk Consulting Limited | Ipswich | 2025 |
| Alexandrou Consultancy Limited | Leicestershire | 2024 |
| Alexandrov Advisory Ltd | London | 2026 |
| Alexandrs Consulting Ltd | Sutton Coldfield | 2022 |
| Alexandru Designs Limited | Portsmouth | 2024 |
| Alexandru Gabriel Consulting Ltd | London | 2025 |
| Alexanne Limited | Palmers Green | 1996 |
| Alexcamax Interim Management Solutions Limited | Maghull | 2014 |
| Alexco Ltd | London | 2024 |
| Alexd Consulting Ltd | Derby | 2014 |
| Alexdent Limited | Keighley | 2019 |
| Alexe Group Ltd | London | 2026 |
| Alexe Management Ltd | London | 2026 |
| Alexec Taxis Limited | West Linton | 2000 |
| Alexei Rosin Consultancy Ltd | Mayfield | 2024 |
| Alexem Limited | Bristol | 2018 |
| Alexen Limited | Lightwater | 2013 |
| Alexfineart Ltd | London | 2015 |
| Alexford Limited | Pershore | 2018 |
| Alexgate Contracts Ltd | Glasgow | 2023 |
| Alexhall Limited | London | 1995 |
| Alexhurst Limited | Altrincham | 1984 |
| Alexi Boardman Ltd | London | 2025 |
| Alexi Earl Ltd | London | 2026 |
| Alexia BA Consulting Ltd | Watford | 2018 |
| Alexia Carter Limited | London | 2019 |
| Alexia Gazi Ltd | London | 2022 |
| Alexia Hargrave Limited | Hoddesdon | 2026 |
| Alexia Investments Ltd | London | 2022 |
| Alexia L MAY Limited | Chester | 2022 |
| Alexia Marine Ltd | Manchester | 2019 |
| Alexia Osborne Design Limited | Chandlers Ford | 2012 |
| Alexia Pflege Ltd. | Folkestone | 2015 |
| Alexia Taylor Ltd | London | 2019 |
| Alexiabond Limited | London | 2020 |
| Alexiam Consulting Limited | Matlock | 2020 |
| Alexico Limited | London | 2024 |
| Alexier Consulting Limited | London | 2017 |
| Alexika Limited | Lancaster | 1999 |
| Alexina Consulting Ltd | Coventry | 2016 |
| Alexiom Business Partners Limited | Cowbridge | 2020 |
| Alexion Limited | Leeds | 2017 |
| Alexious Limited | Derby | 2024 |
| Alexiown Ltd | Spalding | 2018 |
| Alexis Accounting Ltd | Cobham | 2014 |