Founded | Employees | Headquarters Location | |
|---|---|---|---|
| - | 10-50 | Manchester, GB | |
| - | 5000-10000 | Henrietta Place, GB | |
| 1993 | 1000-5000 | London, GB | |
| 1880 | 5.0K - 10K | High Wycombe, GB | |
| 1991 | 1000-5000 | Horsham, GB | |
| - | 1000-5000 | GB | |
| 1978 | 1000-5000 | London, GB | |
| 1971 | 1000-5000 | London, GB | |
| 1805 | 500-1000 | London, GB | |
| - | 500-1000 | London, GB | |
| 1980 | 500-1000 | London, GB | |
| 1999 | 250 - 500 | London, GB | |
| 1961 | 250 - 500 | London, GB | |
| 2003 | 100 - 250 | London, GB | |
| 1992 | 200-500 | London, GB | |
| 1765 | 100 - 250 | London, GB | |
| - | 200-500 | London, GB | |
| 2000 | 200-500 | London, GB | |
| 1971 | 200-500 | Alderley Edge, GB | |
| 1966 | 200-500 | London, GB | |
| 1958 | 100-200 | Hampstead, GB | |
| - | 25 - 100 | LONDON, GB | |
| 1970 | 25 - 100 | Bicester, GB | |
| 1988 | 25 - 100 | Liverpool, GB | |
| 2007 | 25 - 100 | Gibraltar, GB | |
| 1973 | 25 - 100 | London, GB | |
| 2013 | 100-200 | London, GB | |
| - | 100-200 | HIGH WYCOMBE, GB | |
| 2015 | 25 - 100 | London, GB | |
| 1986 | 1 - 25 | London, GB | |
| 2011 | 100-200 | Bedford, GB | |
| 2004 | 25 - 100 | London, GB | |
| - | 100-200 | London, GB | |
| 2021 | 100-200 | London, GB | |
| 2000 | 1-10 | London, GB | |
| 1997 | 25 - 100 | London, GB | |
| 1986 | 10-50 | Weybridge, GB | |
| 2009 | 10-50 | Westlakes Science Park, GB | |
| 2017 | 1 - 25 | Bristol, GB | |
| 1995 | 10-50 | London, GB | |
| 2001 | 10-50 | London, GB | |
| 1958 | 25 - 100 | London, GB | |
| 1997 | 10-50 | Epsom, GB | |
| 2004 | 10-50 | Stourbridge, GB | |
| 2012 | 10-50 | Bury St Edmunds, GB | |
| 2011 | 250 - 500 | Banbridge, GB | |
| - | 10-50 | London, GB | |
| 2010 | 10-50 | Leeds, GB | |
| 2013 | 10-50 | London, GB | |
| 2012 | 10-50 | London, GB | |
| - | 10-50 | Manchester, GB | |
| - | 10-50 | London, GB | |
| - | 10-50 | London, GB | |
| 2015 | 10-50 | London, GB | |
| 2015 | 10-50 | Gravesend, GB | |
| - | 25 - 100 | BRACKNELL, GB | |
| - | 10-50 | London, GB | |
| 2014 | 10-50 | London, GB | |
| 1991 | 10-50 | London, GB | |
| 2020 | 10-50 | Liverpool, GB | |
| - | 10-50 | HOLMFIRTH, GB | |
| 2019 | 10-50 | London, GB | |
| - | 10-50 | Longhoughton, GB | |
| 2018 | 10-50 | London, GB | |
| 1990 | 1-10 | London, GB | |
| - | 1-10 | GB | |
| - | 1-10 | DALGETY BAY, GB | |
| - | 1-10 | GB | |
| - | 1-10 | Arundel , GB | |
| 2009 | 1 - 25 | St Albans, GB | |
| 1986 | 1-10 | London, GB | |
| 2009 | 1-10 | London, GB | |
| 2011 | 1-10 | London, GB | |
| 1900 | 1-10 | Edinburgh, GB | |
| 2017 | 1-10 | London, GB | |
| 2020 | 1-10 | London, GB | |
| 1988 | 1 - 25 | London, GB | |
| 2014 | 1-10 | London, GB | |
| - | 1-10 | Leeds, GB | |
| 2010 | 1-10 | Palmers Green , GB | |
| - | 1-10 | YARM, GB | |
| 2015 | 1-10 | London, GB | |
| - | 1-10 | WIMBLEDON, GB | |
| - | 1-10 | LONDON, GB | |
| 2001 | 1-10 | Birmingham, GB | |
| 2017 | 1-10 | London, GB | |
| 2010 | 1-10 | Weston-Super-Mare, GB | |
| - | 1-10 | GB | |
| 2019 | 1-10 | Plymouth, GB | |
| - | 1-10 | Belfast, GB | |
| - | 25 - 100 | BRAMPTON, GB | |
| 2010 | 1-10 | Sheffield, GB | |
| 2019 | 1-10 | Edinburgh, GB | |
| - | 1-10 | London, GB | |
| 2010 | 1-10 | Newcastle upon Tyne, GB | |
| 2003 | 1-10 | GB | |
| 2017 | 1-10 | Stanwell, GB | |
| 2017 | 1-10 | Cardiff, GB | |
| 2025 | 1-10 | London, GB |