| Algorythyme Ltd | Mildenhall | 2025 |
| Algorytme Ltd | Leicester | 2023 |
| Algoryx Ltd | London | 2026 |
| Algosec Europe Ltd | London | 2012 |
| Algosets Ltd | London | 2021 |
| Algosilicon Ltd | London | 2026 |
| Algosoft Ltd | London | 2025 |
| Algosoup Ltd | Bristol | 2026 |
| Algospark Holdings Limited | London | 2024 |
| Algospark Ltd | London | 2010 |
| Algosport 123 Ltd | South Croydon | 2017 |
| Algostake Ltd | London | 2023 |
| Algosys Consulting Limited | Crawley | 2025 |
| Algosys Technologies Limited | Telford | 2021 |
| Algotec Ltd | Sevenoaks | 2019 |
| Algotechnic Ltd | Bristol | 2012 |
| Algotechno Ltd | London | 2026 |
| Algoteque Ltd | London | 2018 |
| Algoter Limited | Northwich | 2026 |
| Algothera Ltd | London | 2025 |
| Algotiq Solutions Ltd | London | 2024 |
| Algotraders Ltd | London | 2023 |
| Algotron Limited | Epsom | 1996 |
| Algotronix Limited | Edinburgh | 1998 |
| Algoval Ltd | London | 2026 |
| Algovision Management Ltd. | London | 2025 |
| Algovista Ltd | London | 2024 |
| Algovogue Limited | Romford | 2024 |
| Algoweb Solutions Limited | London | 2025 |
| Algox Ltd | London | 2025 |
| Algozen Limited | London | 2023 |
| Algozen Technologies Ltd | London | 2024 |
| Algra Consulting Ltd | Bromyard | 2023 |
| Algroup(Uk) Ltd | Ilford | 2018 |
| Algrowithm UK Ltd | Mildenhall | 2024 |
| Algrthmz Limited | Luton | 2021 |
| Alguna HQ Ltd | London | 2023 |
| Algy Ltd | Surbiton | 2022 |
| Algy Sloane Limited | Radstock | 2010 |
| ALH Consultancy Limited | Ipswich | 2024 |
| ALH IT Services Ltd | Sunderland | 2016 |
| ALH1 Governance Consultancy Limited | Birmingham | 2024 |
| Alhaan Voice Ltd | London | 2025 |
| Alhadath News Group Ltd | New Malden | 2014 |
| Alhambra Films Limited | Kilmacolm | 1995 |
| Alhamdi Labs Ltd | London | 2022 |
| Alhamra Computing Consultants Limited | | 1995 |
| Alhana Media Ltd | London | 2026 |
| Alhasoob Ltd | Birmingham | 2012 |
| Alhconsult Ltd | London | 2025 |
| Alho Photo Ltd. | London | 2024 |
| Alhudood Network Ltd | London | 2019 |
| ALI Abdaal Ltd | London | 2019 |
| ALI Ahmad Limited | Warrington | 2012 |
| ALI and Chap Ltd | Melton Mowbray | 2018 |
| ALI Ashik Ltd | Manchester | 2015 |
| ALI Atef ALI Nasr and Parteners Ltd | London | 2025 |
| ALI Ayyildiz Inter Consultancy Limited | London | 2018 |
| ALI Baba High Tech Solutions Limited | Tottenham | 2023 |
| ALI Bahaar Enterprises Ltd | Wolverhampton | 2025 |
| ALI Baker Limited | Kingston Upon Thames | 2019 |
| ALI Bilton IP Holdings Ltd | Driffield | 2019 |
| ALI Consulting Ltd. | New Malden | 2015 |
| ALI Cook Ltd | Harrogate | 2017 |
| ALI Creative Ltd | Hampton Hill | 2025 |
| ALI Ellam Productions Ltd | Salford | 2015 |
| ALI Farooqui Limited | Manchester | 2019 |
| ALI Film Limited | Ashford | 2023 |
| ALI Financials Leeds Ltd | Leeds | 2017 |
| ALI Ghobadi Limited | Durham | 2023 |
| ALI Investor Ltd | Coventry | 2021 |
| ALI IT Solutions Ltd | Glasgow | 2024 |
| ALI M H Ltd | London | 2023 |
| ALI MAC Ltd | Glasgow | 2020 |
| ALI Mahmood Khan Ltd | Wolverhampton | 2025 |
| ALI Mukrid Ltd | London | 2022 |
| ALI Official Productions Ltd | London | 2016 |
| ALI OOP Ltd | Romford | 2012 |
| ALI Pares Limited | London | 2009 |
| ALI Raza Digital Ltd | Wolverhampton | 2026 |
| ALI Salama Ltd | London | 2012 |
| ALI Shan Consultants Limited | Bedfordshire | 1998 |
| ALI Shan Online Ltd | Thornton Heath | 2025 |
| ALI Soft Works Ltd | Lincoln | 2026 |
| ALI Software Consultancy Ltd | Bradford | 2021 |
| ALI Solutions Ltd | London | 2025 |
| ALI Taylor Golf Ltd | Blackpool | 2021 |
| ALI Technology Limited | London | 2021 |
| ALI Warner Editorial Limited | New Malden | 2012 |
| Ali's & a Ltd | London | 2020 |
| Ali's Convenience Store (Nottm) Ltd | Nottingham | 2018 |
| Ali's IT and Telecommunication Services Limited | Swanley | 2010 |
| Ali-Lala Limited | Leighton Buzzard | 2014 |
| Alia Publishing Limited | Ruislip, | 2024 |
| Alia Terra Ltd | Bury St. Edmunds | 2023 |
| Alian Ltd | London | 2019 |
| Aliana Business Consultants Limited | Nottingham | 2013 |
| Alianda Limited | Cardiff | 2006 |
| Aliando UK Private Limited | London | 2017 |
| Aliao Group Ltd | Glasgow | 2024 |