| Aspect Enterprise Solutions Limited | London | 2003 |
| Aspect Fieldpro Ltd | Reading | 2023 |
| Aspect Film and Video Productions Ltd | Bristol | 2021 |
| Aspect Films Ltd | Liverpool | 2018 |
| Aspect Innovations Ltd | Cambridge | 2010 |
| Aspect IT Limited | Oldham | 2003 |
| Aspect Media International Limited | Bristol | 2009 |
| Aspect Media Ltd | Chelmsford | 2015 |
| Aspect Media Productions Limited | Herefordshire | 2020 |
| Aspect Mountain Films Ltd | East Boldon | 2026 |
| Aspect Music Limited | Grantham | 2018 |
| Aspect Pictures Limited | London | 2020 |
| Aspect Productions Limited | Badminton | 2003 |
| Aspect Project Solutions Limited | Northampton | 2021 |
| Aspect Ratio Software Limited | Sheffield | 2025 |
| Aspect Research Ltd | London | 2025 |
| Aspect SME Limited | Milton Keynes | 2024 |
| Aspect Technology Solutions Ltd | London | 2014 |
| Aspect Voice Limited | Consett | 2014 |
| ASPECT2I Limited | Chorley | 2009 |
| Aspection Ltd | Chester | 2016 |
| Aspectiva Limited | Mildenhall | 2015 |
| Aspective Limited | Wembley | 2023 |
| Aspects Infotech Ltd | London | 2020 |
| Aspects Inspire Ltd | Cardiff | 2012 |
| Aspects of History Ltd | London | 2020 |
| Aspeer Holdings Limited | High Wycombe | 2007 |
| Aspeer Media Limited | High Wycombe | 2007 |
| Aspekt Limited | Edinburgh | 2018 |
| Aspekta Solutions Ltd | Lytham St. Annes | 2013 |
| Aspen Accounting Ltd | Altrincham | 2015 |
| Aspen Blue Limited | Calne | 2011 |
| Aspen Consultants (U.K.) Limited | Milton Keynes | 1995 |
| Aspen Digital Limited | Reading | 2020 |
| Aspen Enterprises Limited | Highbridge | 1995 |
| Aspen Film Productions Ltd | Hyde | 2022 |
| Aspen Infosec Consulting Ltd | Earby | 2009 |
| Aspen Infotech Ltd | Nottingham | 2024 |
| Aspen Institute UK | Hitchin | 2017 |
| Aspen IT and Media Solutions Ltd | Hampton | 2021 |
| Aspen Lucrum Limited | London | 2022 |
| Aspen Stromb Consultancy Limited | London | 2000 |
| Aspen Systems Ltd | London | 2016 |
| Aspen Technology Ltd | Stourbridge | 1998 |
| Aspen Visual Ltd | London | 2025 |
| Aspen Waite Media Limited | Bridgwater | 2021 |
| Aspendos International Academy of Medical and Social Sciences Ltd. | London | 2026 |
| Aspendos IT Consultancy Ltd | London | 2019 |
| Aspendos Solutions Limited | Wembley | 2007 |
| Aspenify UK Limited | Worcester | 2019 |
| Aspentech Ltd. | Reading | 1983 |
| Aspentech Solutions Limited | Manchester | 2025 |
| Aspenvail Business Systems (UK) Limited | Grimsby | 1990 |
| Aspeq Limited | London | 2008 |
| Asper Brothers Ltd | London | 2021 |
| Asper Soft Limited | London | 2021 |
| Asper Technologies Limited | Wembley | 2020 |
| Asper.Ai Limited | North Harrow | 2019 |
| Aspera Solutions Ltd | Liphook | 2014 |
| Aspera Technologies Limited | Hounslow | 2014 |
| Asperitas Limited | Penistone | 2017 |
| Asperiti Group Limited | East Cowes | 2008 |
| Asperitus Group Limited | London | 2017 |
| Aspermont Media Limited | London | 2012 |
| Aspexi Ltd. | London | 2013 |
| Aspez UK Technologies Ltd | Newcastle Upon Tyne | 2019 |
| Aspgate Ltd | Wickford | 2019 |
| Asphalt City Films Limited | Bridport | 2024 |
| Aspheric Limited | Wymondham | 2026 |
| Asphyxia Films Ltd | Preston | 2026 |
| Aspia Space Limited | Pool | 2021 |
| Aspicio Limited | Nottingham | 2006 |
| Aspid Ltd | Gloucester | 2025 |
| Aspide Technology UK Limited | London | 2019 |
| Aspides Limited | Potters Bar | 2023 |
| Aspidistra Holdings Limited | London | 2016 |
| Aspihre Group Limited | Camberley | 2018 |
| Aspin Digital TV Solutions Ltd | Grimsby | 2012 |
| Aspin Management Systems Limited | Romsey | 1984 |
| Aspinall Consulting Limited | Salisbury | 1998 |
| Aspira IT Limited | Doncaster | 2009 |
| Aspiracloud Ltd | Coventry | 2011 |
| Aspiraflows Ltd | Cardiff | 2026 |
| Aspiralane Ltd | Cambridge | 2025 |
| Aspirant Analytics Ltd | London | 2013 |
| Aspirant Technologies Ltd | Romford | 2026 |
| Aspirantix Ltd | London | 2025 |
| Aspirants Consulting Services Limited | Didcot | 2017 |
| Aspiration Films (Telstar) Limited | Canterbury | 2007 |
| Aspiration Finance Limited | London | 2016 |
| Aspiration IT Ltd | Gravesend | 2023 |
| Aspiration World Limited | London | 2006 |
| Aspire Active Software Limited | Erdington | 2019 |
| Aspire AI Solutions Ltd | London | 2026 |
| Aspire Analytics Limited | Milton Keynes | 2024 |
| Aspire Assistive CIC | Carlisle | 2017 |
| Aspire Business Management Ltd | Bolton | 2024 |
| Aspire Business Software Limited | London | 2017 |
| Aspire Communications Limited | Nottingham | 2003 |
| Aspire Computers Limited | Warrington | 2013 |