Founded | Employees | Headquarters Location | |
|---|---|---|---|
| 1946 | 10000+ | London, GB | |
| 1961 | 1.0K - 5.0K | Manchester, GB | |
| 1957 | 1000-5000 | Warwick, GB | |
| 1960 | 500 - 1.0K | Cambridge, GB | |
| 1947 | 500 - 1.0K | London, GB | |
| - | 500-1000 | GB | |
| - | 500-1000 | London, GB | |
| 1996 | 200-500 | Aldgate, GB | |
| 1987 | 200-500 | Melbourn, GB | |
| 1978 | 250 - 500 | Luton, GB | |
| 1986 | 250 - 500 | London, GB | |
| 1970 | 200-500 | London, GB | |
| 2018 | 200-500 | London, GB | |
| 1998 | 25 - 100 | London, GB | |
| - | 200-500 | Epsom, GB | |
| 2006 | 100-200 | London, GB | |
| 2016 | 100-200 | Salford, GB | |
| 1987 | 25 - 100 | London, GB | |
| 1968 | 100-200 | London , GB | |
| 2010 | 25 - 100 | London, GB | |
| 2000 | 100-200 | Windsor, GB | |
| 1985 | 1 - 25 | London, GB | |
| 2009 | 100-200 | Barbican, GB | |
| 2002 | 25 - 100 | London, GB | |
| 1977 | 100-200 | London, GB | |
| 1990 | 1 - 25 | London, GB | |
| 2010 | 100-200 | London, GB | |
| 2006 | 100-200 | London, GB | |
| 1985 | 100-200 | London, GB | |
| 1964 | 100-200 | London, GB | |
| 1980 | 100-200 | London, GB | |
| 2007 | 100-200 | London, GB | |
| 1979 | 100-200 | London, GB | |
| 2010 | 100-200 | Malvern, GB | |
| 2014 | 100-200 | London, GB | |
| 2007 | 100 - 250 | Swindon, GB | |
| 2018 | 100-200 | London, GB | |
| 2018 | 100-200 | London, GB | |
| 2011 | 10-50 | London, GB | |
| - | 1 - 25 | London, GB | |
| 2020 | 1-10 | London, GB | |
| 1991 | 1 - 25 | LONDON, GB | |
| 1983 | 10-50 | London, GB | |
| 1998 | 10-50 | Haughley, GB | |
| - | 10-50 | London, GB | |
| 2002 | 1 - 25 | Salford, GB | |
| 1999 | 10-50 | Bolton, GB | |
| 1998 | 10-50 | London, GB | |
| - | 10-50 | London, gb | |
| 2001 | 10-50 | London, GB | |
| 2006 | 25 - 100 | London, GB | |
| 2016 | 10-50 | Manchester, GB | |
| 2009 | 1 - 25 | Edinburgh, GB | |
| - | 10-50 | Manchester, GB | |
| 1978 | 100 - 250 | GB | |
| 2005 | 10-50 | Warrington, GB | |
| 2001 | 10-50 | Guernsey, GB | |
| 2003 | 10-50 | London, GB | |
| 2010 | 10-50 | London, GB | |
| 2011 | 25 - 100 | London, GB | |
| - | 10-50 | London, GB | |
| 2003 | 10-50 | Perranporth, GB | |
| 2019 | 10-50 | Accrington, GB | |
| 1979 | 10-50 | Bristol, GB | |
| - | 10-50 | GB | |
| 2016 | 10-50 | London, GB | |
| - | 10-50 | BIRMINGHAM, GB | |
| 2019 | 10-50 | London, GB | |
| 2017 | 10-50 | London, GB | |
| 2021 | 10-50 | Warwick, GB | |
| - | 10-50 | London, GB | |
| - | 1-10 | London, GB | |
| 1995 | 1-10 | London, GB | |
| 2010 | 1-10 | London, GB | |
| 2012 | 1-10 | Kettering, GB | |
| 2001 | 25 - 100 | Stockport, GB | |
| 2001 | 1-10 | Mirfield, GB | |
| 2012 | 1 - 25 | Manchester, GB | |
| 2005 | 1-10 | Colchester, GB | |
| - | 1-10 | GB | |
| 2000 | 1-10 | Worcester, GB | |
| 2019 | 1-10 | Douglas, IM | |
| 2009 | 1-10 | Poole, GB | |
| 2021 | 1-10 | Maidenhead, GB | |
| 2013 | 1-10 | Manchester, GB | |
| 2020 | 1-10 | Bexhill-On-Sea, GB | |
| 2007 | - | GB | |
| 2009 | 1-10 | Plymouth UK, GB | |
| 2001 | 1-10 | Helston, GB | |
| 2007 | 1-10 | Chiswick, GB | |
| 2002 | 1-10 | Aylesbury, GB | |
| 2023 | 1-10 | Liverpool, GB | |
| - | - | London, GB | |
| - | - | London, GB | |
| - | - | Oldham, GB | |
| - | - | GB | |
| 2011 | - | Portsmouth, GB | |
| 2007 | - | GB | |
| 2003 | - | Lincoln, GB |