Infologue 2021 Top 45 UK Security Companies


For 17 years, has ranked the UK’s biggest and best security companies by revenue. This annual list is made using self reported information from the management at these companies as well as historical financial data where necessary. We only take into account revenue drawn from the regulated UK security market. This year we have increased the number of companies listed from the Top 30 to the Top 45.

In 2021, like 2020, the security landscape has been heavily influenced by the Covid-19 pandemic. Massive government contracts combined with weakened event and retail markets has caused a lot of movement on the rankings this year.

The biggest shock arising from Covid related contracts is SSGC Ltd who have increased turnover 10 fold on the back of these contacts. They debut on the list at Number 10. SSGC have provided a copy of their accounts to attest to this meteoric rise. These will be checked after filing as well.

Acquisitions have also played a large role with Cordant and Axis being brought into Bidvest Noonan. Interserve also leaves the list following their acquisition by Mitie.

Bidvest Noonan moves up to 3rd place. Sodexo jumps 8 places from 16 to 8. Man Commercial continues to grow, entering the Top 20 for the first time.

We have had several new entrants to the rankings with Professional Security and Croma Vigilant debuting at numbers 25 and 26 respectively. Bold Security also debuts at number 27 following a massive year-on-year jump. Interr and MPD FM return to the list after not being on last year. 

This year also saw a lot of stagnation with many companies not improving their revenue from last year. Top 45 UK Companies in the Regulated Security Sector

The Top 45 mirrors the regulated private security sector, which includes companies operating within the following security disciplines: Guarding, Cash & Valuables in Transit, Close Protection, Door Supervision, Public Space Surveillance (CCTV), Security Guarding and Key Holding.



Rank Company Name 2021 Estimated Turnover Movement
1 Mitie Security £942,800,000
2 G4S Secure Solutions £375,572,000*
3 Bidvest Noonan  £300,000,000 +2
4 Securitas Security Services £250,000,000 -1
5 OCS Group UK Ltd £190,000,000 -1
6 TSS (Total Security Services) £140,000,000
7 Wilson James Ltd £120,184,000 +2
8 Sodexo £119,000,000 +8
9 Loomis UK Ltd £115,612,000** -2
10 SSGC Ltd £102,269,690 New
11 ISS Facility Services Limited £95,000,000
12 Corps Security Ltd £90,500,000 +2
13 Kingdom £86,550,424** +2
14 I.C.T.S. (U.K.) LIMITED £85,000,000 -1
15 Amberstone £77,295,000 +4
16 Atalian – Servest Ltd £77,000,000 +5
17 CIS Security Ltd £75,000,000
18 Carlisle Security Services Limited £72,000,000
19 Profile Security Services Ltd £59,500,000 +1
20 Man Commercial Protection Limited £58,000,000 +2
21 SecuriGroup £56,000,000 +2
22 Ward Security Limited £46,000,000 +2
23 Amulet £45,000,000 +2
24 Interr Security £37,883,039** New
25 Professional Security £35,500,000*** New
26 Croma Vigilant £33,900,000 New
27 Bold Security Group £30,221,902*** New
28 Guarding UK £28,863,174**
29 STM Group Ltd £27,500,000 -3
30 First Response Group £26,500,000*** New
31 Lodge Service Ltd £26,000,000 -2
32 Allied Universal (Europe) Limited £25,956,247** -5
33 ABM UK £25,940,371*** New
34 Provide SESS £25,846,861*** New
35 MPD FM (Formerly, Manpower Direct) £21,637,092.70 New
36 Brooknight £18,600,000 -5
37 Unitrust £17,500,000 -5
38 Constant Security £16,947,500 New
39 The Protector Group £16,368,315** New
40 Dardan Security £16,000,000 New
41 Showsec £15,282,897** New
42 The Keyholding Company £15,268,512** New
43 Anchor Group Services £15,129,481** New
44 Phoenix Eye £14,082,581** New
45 The GMS Group £14,000,912*** New
46 FGH Security £13,400,000 New
47 Regency Security Group £12,730,741** New
48 Prime Secure £12,000,000*** New
49 SmartSec £11,483,000 New
50 CN Security £10,879,000*** New

G4S has changed how they report annual revenue which has made it impossible to separate out Regulated Security activities and non-regulated in their Cash Solutions business unit. We contacted numerous senior leadership members and were unable to get a definitive figure. We used the 2020 filings Jan – Dec from their Secure Solutions Business to come up with their 2021 turnover.

** The majority of the revenue figures are reported by the companies themselves to us directly. Those with two asterisks are companies where we have had to use the most recent accounts filings. Some of these companies have non-related areas of business in their statutory accounts which attempts to estimate and factor out of the estimated turnover. Infologue strives for accuracy and welcomes input from the companies and will amend any verified inaccuracies as soon as possible. Therefore these figures should be treated with caution and be regarded as the best guess.

*** Professional Security came in with figures several hours after publishing which moved the rankings down for anyone between number 25 and 31. Provide SESS came in with figures on the 15th of December, pushing everyone from position 31 down. First Response Group was added on the 15th at number 29, pushing everyone below that down. Bold Security sent over their financials for the year on January 4th moving them up to 27 from 33. The GMS Group submited their accounts on the 5th of January moving them from 45 to 44. Prime Secure reported their figures on the 27th July 2022. On October 6th 2022 ABM UK reported in at number 33 moving everyone below that down one place. CN Security reported in on October 10th 2022 at number 50.

The Infologue 2021 Top 45 UK Security Companies by revenue is an exclusive production of and may not be replicated without the express written permission of the producers thereof.

In order to be fair and reasonable, we have set a cut-off period of 30 days for addition/corrections of 30 days from publication. The final decision on any amendments is strictly decided by the publisher.

Infologue Top Security Companies  from previous years:

Infologue Top 30 2020

Infologue Top 30 2019

Infologue Top 30 2018

Infologue Top 30 2017

Infologue Top 30 2016

Infologue Top 30 2015

Infologue Top 30 2014

Infologue Top 30 2013

Infologue Top 25 2012

Infologue Top 20 2011