Due to acquisition activity in the UK regulated security services sector in the first half of 2014, we have adjusted the 2013 Infologue.com list of UK Top 25 Regulated Sector Security Companies, to take account of such changes. We have done this to reflect a more accurate position of the Infologue.com list of UK Top 25 Regulated Sector Security Companies. The complete 2014 Infologue.com list will be published in December 2014.
The acquisition of Initial Facility Services (Knightsbridge Security) by Interserve Plc has resulted in the estimated Interserve Plc (First Security Guards or FSG) turnover in the regulated security services sector growing from £60 Million to £115 Million. The Infologue.com UK Top 25 Regulated Sector Security Companies ranking of Interserve Plc has increased on the from twelfth to sixth.
The combining of the FSG and Knightsbridge turnover in a single turnover unit has resulted in the addition of the Scottish security services company, SecuriGroup Services Ltd to the Infologue.com UK Top 25 Regulated Sector Security Companies.
Finally, we have adjusted the turnover of Bilfinger Europa Ltd to take into account a recent acquisition which means the Bilfinger ranking in the list of the Infologue.com UK Top 25 Regulated Sector Security Companies from twent\y third to twentieth..
Other than the changes above the rest of the list of the Infologue.com UK Top 25 Regulated Sector Security Companies remains as at 30 November 2013.
The Infologue.com Top 25 mirrors the regulated private security sector which includes companies operating within the following security disciplines; Guarding, Cash and Valuables in Transit, Close Protection, Door Supervision, Public Space Surveillance (CCTV), Security Guarding, and Key Holding.
Infologue.com Top 25 UK Companies in the Regulated Security Sector 2013, as adjusted on 20 July 2014.
| Rank | Company Name | 2013 Turnover | Est Market Share |
| 1 | G4S Plc | £788,000,000 | 24.63% |
| 2 | Securitas Security Services Ltd. | £380,000,000 | 11.88% |
| 3 | Mitie Total Security Management | £340,000,000 | 10.63% |
| 4 | Vision Security Group Ltd (VSG)(Compass) | £150,000,000 | 4.69% |
| 5 | OCS Group UK Ltd | £135,000,000 | 4.22% |
| 6 | Interserve Plc (First Security(Guards) & Knightsbridge | £115,000,000 | 3.59% |
| 7 | Loomis UK Ltd | £109,000,000 | 3.41% |
| 8 | Advance Security (UK) Limited | £89,000,000 | 2.78% |
| 9 | Wilson James Ltd. | £72,000,000 | 2.25% |
| 10 | The Shield Group | £68,000,000 | 2.13% |
| 11 | ISS Facility Services Limited | £65,000,000 | 2.03% |
| 12 | TSS (Total Security Services) | £65,000,000 | 2.03% |
| 13 | ICTS UK Ltd | £50,000,000 | 1.56% |
| 14 | Ultimate Security Services Ltd | £50,000,000 | 1.56% |
| 15 | Axis Security Ltd | £50,000,000 | 1.56% |
| 16 | Kingdom Security Ltd | £50,000,000 | 1.56% |
| 17 | Corps Security Ltd | £49,500,000 | 1.55% |
| 18 | Sodexo | £45,000,000 | 1.41% |
| 19 | CIS Security Ltd | £32,000,000 | 1.00% |
| 20 | Carlisle Security | £30,000,000 | 0.94% |
| 20 | Bilfinger Europa Services Ltd | £30,000,000 | 0.94% |
| 22 | Profile Security Services Ltd | £28,000,000 | 0.88% |
| 23 | Servest Ltd | £27,000,000 | 0.84% |
| 24 | SecuriGroup | £25,000,000 | 0.78% |
| 25 | Emprise Services Plc | £24,000,000 | 0.75% |
| Estimated Turnover of Top 25 | £2,865,500,000 | 89.55% | |
| Est. Turnover of UK Regulated Security Industry | £3,200,000,000 | 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 an annualised basis as of end November 2013 and relates only to revenue derived from the regulated sector of the Private Security Industry. 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 25 and will amend any verified inaccuracies as soon as possible. Therefore these figures should be treated with caution and be regarded as a best guess. The Infologue.com Top 25 UK Companies in the Regulated Security Sector 2012 is an exclusive production of Infologue.com and may not be replicated without the express written permission of the producers thereof.