Welcome to the Infologue.com Top 20 UK Security Guarding Companies Table providing estimated current annual turnover of each of the UK’s twenty largest security guarding companies. The 2009 Provisional Table has been released to cover the acquisition activity up to 1 August 2009 but does not cover contract churn since December 2008.
Infologue.com Top 20 UK Security Guarding Companies
2009 Provisional Table
| 2009 | Company Name | Estimated Annualised Turnover | Estimated Market Share |
| 1 | G4S | £380,000,000 | 17.27% |
| 2 | Mitie plc | £263,000,000 | 11.95% |
| 3 | Reliance Security Services Ltd | £229,000,000 | 10.41% |
| 4 | Chubb Security Personnel Ltd. | £124,000,000 | 5.64% |
| 5 | Vision Security Group Ltd (VSG) | £103,000,000 | 4.68% |
| 6 | OCS Ltd | £95,000,000 | 4.32% |
| 7 | Securitas Security Services Ltd. | £92,000,000 | 4.18% |
| 8 | The Corps Ltd | £78,000,000 | 3.55% |
| 9 | Advance Security Ltd | £75,000,000 | 3.41% |
| 10 | The Legion Group Plc | £72,000,000 | 3.27% |
| 11 | Interserve Plc | £70,000,000 | 3.18% |
| 12 | ISS Pegasus Security Ltd | £68,000,000 | 3.09% |
| 13 | ICTS UK Ltd | £65,000,000 | 2.95% |
| 14 | The Shield Guarding Co. Ltd. | £61,500,000 | 2.80% |
| 15 | Wilson James Ltd. | £48,000,000 | 2.18% |
| 16 | Carlisle Security | £32,000,000 | 1.45% |
| 17 | Knightsbridge Guarding Ltd | £30,000,000 | 1.36% |
| 18 | Axis Security Ltd | £26,000,000 | 1.18% |
| 19 | Ultimate Security | £24,000,000 | 1.09% |
| 20 | AFC Group | £23,000,000 | 1.05% |
| Estimated Turnover of Top 20 Companies | £1,958,500,000 | 89.02% | |
| Est Turnover of UK Guarding Industry | £2,200,000,000 | 100.00% |
The above table is based on estimates and historical published data of annual turnover and should be viewed only as a guide to the approximate size of the largest companies in the manned security industry. The turnover is calculated on annualised basis as of November 2008 to the Infologue.com definition of the provision of manned security services and adjusted to incorporate the Legion/Craft/Sectorguard acquisition and the Axis/Temple acquisition. The OCS Limited figure includes the security guarding activities of their UK business. Therefore these figures should be treated with caution. Some companies have non related areas of business in their statutory accounts which Infologue.com attempts to estimate and factor out of the estimated turnover. Whilst some companies are now providing information on turnover to Infologue.com all figures will not be accurate as statutory information can be up to two years out of date. Infologue.com welcomes input from the companies in the Infologue.com Top 20 and will change the figures on the next list publication.