Founded | Employees | Headquarters Location | |
|---|---|---|---|
| - | 10000+ | Staines, GB | |
| 1989 | 1 - 25 | London, GB | |
| 1957 | 1000-5000 | Hillingdon, GB | |
| 1859 | 1 - 25 | London, GB | |
| - | 1000-5000 | Christchurch, GB | |
| 2014 | 1000-5000 | Worldwide, GB | |
| 2001 | 5000-10000 | London, GB | |
| 1985 | 1000-5000 | Mexborough, GB | |
| 2004 | 500-1000 | London, GB | |
| 2003 | 500-1000 | Great Chesterford, GB | |
| 1991 | 25 - 100 | Watford, GB | |
| - | 500-1000 | Fulham, gb | |
| 1999 | 200-500 | Wokingham, GB | |
| 1990 | 200-500 | Tewkesbury Business Park, GB | |
| 2003 | 200-500 | Wetherby, GB | |
| 2009 | 200-500 | Loughton, GB | |
| - | 100-200 | LONDON, GB | |
| - | 100-200 | Uxbridge, GB | |
| 2001 | 250 - 500 | Camberley, GB | |
| 1991 | 10-50 | London, GB | |
| 2011 | 1 - 25 | Reading, GB | |
| - | 100-200 | GB | |
| 2010 | 100-200 | Hereford, GB | |
| 1996 | 100 - 250 | Swindon, GB | |
| 2009 | 100-200 | London, GB | |
| - | 100-200 | Liverpool, GB | |
| 2017 | 100-200 | Stoke-on-Trent, GB | |
| 2011 | 100-200 | Rainham, GB | |
| 2016 | 100-200 | London, GB | |
| 2004 | 25 - 100 | London, GB | |
| 2008 | 10-50 | Blackpool, GB | |
| 2021 | 10-50 | Claymont, US | |
| 2014 | 25 - 100 | London, GB | |
| 2016 | 10-50 | Cheltenham, GB | |
| 1996 | 10-50 | Gainsborough, GB | |
| 1990 | 1-10 | London, GB | |
| 2020 | 10-50 | London, GB | |
| 2014 | 10-50 | London, GB | |
| - | 10-50 | Leigh on sea, GB | |
| 2011 | 10-50 | Sunderland, GB | |
| 2000 | 10-50 | Darlington, GB | |
| - | 10-50 | BOLTON, GB | |
| 2009 | 10-50 | Ringwood, GB | |
| 2022 | 10-50 | London, GB | |
| 2022 | 1-10 | London, GB | |
| 1997 | 1-10 | GB | |
| 2010 | 1 - 25 | London, GB | |
| 1997 | 1-10 | Sittingbourne, GB | |
| - | 1-10 | London, GB | |
| 2015 | 1-10 | LEEDS, GB | |
| 2017 | 1-10 | South Queensferry, GB | |
| - | 1-10 | Sheffield, GB | |
| 1998 | 1-10 | London, GB | |
| 2007 | - | London, GB | |
| 1901 | 100K - 9.9M | London, GB | |
| - | 5000-10000 | Milton Keynes, GB | |
| 1950 | 1.0K - 5.0K | Paddington, London, GB | |
| 2000 | 5.0K - 10K | Northampton, GB | |
| 2000 | 10-50 | London, GB | |
| - | 1000-5000 | London, GB | |
| 2016 | 250 - 500 | Northwich, GB | |
| 1969 | 1000-5000 | London, GB | |
| 2017 | 1-10 | London, GB | |
| 1993 | 250 - 500 | North West, GB | |
| 2000 | 25 - 100 | London, gb | |
| - | 200-500 | Chertsey, GB | |
| - | 1000-5000 | London, GB | |
| 1835 | 200-500 | Wolverhampton, GB | |
| 2002 | 100-200 | Hampton Wick, Kingston upon Thames, GB | |
| 1985 | 250 - 500 | Brighton, GB | |
| 2002 | 100-200 | Southampton, GB | |
| 2004 | 10-50 | United Kingdom, GB | |
| 2004 | 10-50 | London, GB | |
| 2000 | 1000-5000 | London, GB | |
| 1994 | 1000-5000 | London, GB | |
| 2003 | 100-200 | Cardiff, GB | |
| - | 10-50 | Melksham, gb | |
| 2003 | 100-200 | Sedgefield, GB | |
| 2001 | 10-50 | Bromley, GB | |
| 2001 | 200-500 | Rochdale, GB | |
| 1975 | 10-50 | Slough, GB | |
| 1972 | 100-200 | Glasgow, GB | |
| 1993 | 1000-5000 | Braintree, GB | |
| 2002 | 100-200 | Hereford., GB | |
| - | 100-200 | Stoke on Trent, gb | |
| 2005 | 100-200 | London, GB | |
| - | 10-50 | London, gb | |
| 2008 | 1-10 | London, GB | |
| 2005 | 200-500 | London, GB | |
| 2003 | 5000-10000 | London, GB | |
| 2013 | 100-200 | GLASGOW, GB | |
| 2001 | 100-200 | Huntingdon, GB | |
| 1996 | 10-50 | GB | |
| 1999 | 10-50 | GB | |
| 1962 | 1 - 25 | Kenley, GB | |
| 1993 | 25 - 100 | Watford, GB | |
| 2013 | 100-200 | London, GB | |
| 1996 | 25 - 100 | Chelmsford, GB | |
| 2004 | 25 - 100 | London, GB |