In this article, we will be overlooking which security company is the biggest in the UK. To determine our top spot, we will be ranking these companies on their annual turnover.
Firstly, we will talk about what security companies are and what they can offer you.
Top 25 Security Companies in the UK
Now we’ll dive deep into the list of the top 25 biggest security companies in the UK.
| Rank | Security Companies | Founded | Location | Annual Turnover | Staff Personnel (Count) | Average Google Rating |
| 1st | Mitie Security | 3rd June 1971 | London | £942,000,000 | 77,500+ | 3.8/5 |
| 2nd | G4s Secure Solutions | 14th March 1972 | London | £375,000,000 | 800,000+ | 3.0/5 |
| 3rd | OCS Group LTD | 15th May 1995 | Manchester | £190,000,000 | 68,000+ | 3.8/5 |
| 4th | T.S.S Total Security Services | 27th September 1989 | London | £140,000,000 | 6,500+ | 3.1/5 |
| 5th | Wilson James Ltd | 21th June 1988 | Salford | £120,000,000 | 5,200+ | 4.1/5 |
| 6th | Loomis UK Ltd | 17th May 1996 | Nottingham | £115,000,000 | 24,000+ | 2.7/5 |
| 7th | SSGC Ltd | 25th July 2002 | Swindon | £102,000,000 | 4,000+ | 2.4/5 |
| 8th | Corps Security Ltd | 28th November 1997 | Wigan | £90,500,000 | 3,500+ | 5.0/5 |
| 9th | Kingdom Security | 2nd March 1993 | St Helens | £86,000,000 | 7,000+ | 2.8/5 |
| 10th | I.C.T.S UK Limited | 30th June 1987 | London | £85,000,000 | 3,100+ | 3.0/5 |
| 11th | Carlisle Security Services Limited | 15th October 1991 | Luton | £72,300,000 | 2800+ | 3.3/5 |
| 12th | Cis Security | 9th April 1981 | London | £61,150,000 | 1500+ | 4.2/5 |
| 13th | Profile Security Services Limited | 13th April 1989 | Lincolnshire | £56,580,000 | 1600+ | 2.6/5 |
| 14th | Interr Limited | 27th August 2013 | London | £53,900,000 | 500+ | 3.7/5 |
| 15th | SecuriGroup Limited | 24th July 2008 | Glasgow | £52,000,000 | 1800+ | 3.8/5 |
| 16th | Man-Commercial Protection Limited | 16th January 2003 | Solihull | £50,000,000 | 1300+ | 4.1/5 |
| 17th | Ward Security Limited | 31st October 2005 | Kent | £43,900,000 | 1000+ | 3.6/5 |
| 18th | Guarding UK LTD | 19 February 2003 | Essex | £28,700,000 | 700+ | 3.1/5 |
| 19th | Vigilant Security Limited | 19th October 2000 | London | £27,460,000 | 928+ | 3.8/5 |
| 20nd | Allied Universal (Europe) Limited | 8th February 2007 | London | £25,960,000 | 516+ | 1.8/5 |
| 21st | STM Group LTD | 28th May 2005 | London | £25,350,000 | 920+ | 3.3/5 |
| 22nd | First Response Group Ltd | 30th May 2007 | Leeds | £25,200,000 | 224 | 4.2/5 |
| 23rd | Bold Security Group Ltd | 3rd August 2011 | Essex | £19,600,000 | 161 | 4.1/5 |
| 24th | Unitrust Protection Services | 26th October 1977 | London | £18,330,000 | 414 | 3.8/5 |
| 25th | Brooknight Security Limited | 28th April 1994 | Kent | £16,100,000 | 650+ | 2.2/5 |
25th – Brooknight Security Limited
First on the list is Brooknight Security Limited, founded in 1994. They made it to 25th place and saw an annual turnover of 16,100,000 and a small workforce of 650 employees.
24th – Unitrust Protection Services
Next on the list is Unitrust Protection Services. Founded in 1977, Unitrust Protection Services is a security company is based in London, Wembley, and has over 418 employees. They saw an annual turnover of over £18,330,000.
23rd – Bold Security Group Ltd
Going down the list is our next submission Bold Security Group LTD. They are a relatively new security company, being founded only in 2011. Bold Security Group LTD saw an annual turnover of £19,600,000 and has a small team of 161 employees.
22nd – First Response Group Ltd
Next on the list is First Response Group LTD which is a security company based in Leeds that was incorporated in 2007. It had an annual turnover of 25,200,000 and has 224 employees. It has made it into our list of the top 25 biggest security companies in the UK
21st – STM Group LTD
STM Group LTD is a security company founded in 2005 that is based in London. It comes high on the list of the top security companies in the UK as its annual turnover was £25,350,000 and has over 920 employees
20th – Allied Universal (Europe) Limited
Next on the list is Allied Universal (Europe) Limited which is based in London and founded in 2007. This security company saw an annual turnover of 25,960,000 which is a 25% increase from last year’s turnover, making it one of the biggest rises in the security industry. Its workforce is ever-increasing also with over 516 employees now
19th – Vigilant Security Limited
Vigilant Security Limited, based in London, was founded in 2000. With over 928 employees, Vigilant Security Limited saw an annual turnover of £27,460,000
18th – Guarding UK LTD
Next on our list is Guarding UK LTD, which was founded in 2003. Based in Ilford Essex, Guarding UK LTD remains of the biggest security companies in the country with an annual turnout of £28,700,000 and has over 700 employees in the company
17th – Ward Security Limited
Founded in 2005, Ward Security Limited is next on our list. Situated in Kent, Ward Security LTD saw an annual turnover of £43,900,000 and has over 1000 employees
16th – Man-Commercial Protection Limited
Based in Solihull, West Midlands, Man Commercial Protection Limited, founded in 2003, makes it next on our list. This security company saw an annual turnover of £50,000,000. It is continuously growing with the company adding to its workforce consistently. Their workforce saw an increase of 5.65% this year, and currently have a workforce of 1300 employees.
15th – SecuriGroup Limited
Next on our list is Scotland-based security company SecuriGroup Limited. Situated in central Glasgow, SecuriGroup has seen an uprise in the security industry, only starting in 2008, and made its way to become one of the security’s most popular companies. SecuriGroup Limited had an annual turnover of £52,000,000 and employs 1800 people.
14th – Interr Limited
New to the security scene is Interr Limited. Founded in 2003 and based in London, Interr Limited saw an annual turnover of £53,900,000 and has only 543 employees. It is one of the biggest uprises on our list.
13th – Profile Security Service Limited
Founded in 1989, Profile Security Limited is an ever-growing security organisation with over 1600 employees. Based in Lincolnshire, Profile security services limited saw an annual turnover of £56,580,000, making it one of the biggest security companies in the UK
12nd – Cis Security
The 12th on the list is Cis Security. Cis Security, founded in 1981, is another security company based in London on our list. The company have more than 1500 employees and has an annual turnover of 61,150,000
11th – Carlisle Security Services Limited
The 11th on the list is Carlisle Security Services Limited which was formed in 1991. Based in Luton, this security company has over 2800+ employees which makes this a large security company. With an annual turnover of £72,300,000, this makes it 11th on the list
10th – I.C.T.S UK Limited
10th place on our list is I.C.T.S UK Limited. Founded in 1987 and based in London, I.C.T.S UK Limited has joined the ranks of one of the biggest security companies in the UK. The company serves over 120 private and public sectors organisations across the UK
9th – Kingdom Security
9th on our list is Kingdom Security. Formed in 1993 and based in the Merseyside region in St Helens, Kingdom Security has been voted one of the biggest security companies in the UK.
Kingdom security holds one of the biggest security forces with over 7000+ employees. Its annual turnover is £86,000,000
8th – Corps Security Ltd
8th on our list is Corps Security LTD. Formed in 1997 and based in Wigan, Corps Security LTD has been providing security for around 160 years, dating back to the 1860s.
Providing regulated security services to businesses across the UK, Corps Security LTD has slowly gone up the ranks to become one of the top security companies in the UK and has recently seen an annual turnover of £90,500,000.
7th – SSGC Ltd
Continuing our list at number 7 is SSGC LTD. SSGC LTD is one of the fastest-growing security companies in the UK.
Based in Swindon, SSGC LTD was formed in 2014 with an annual turnout of £1.2 million. Moving to 2021, the company has quickly reached a 1400% growth with an annual turnout of around £102 million, making it one of the fastest-growing security companies in the world and the UK. SSGC LTD currently hires 4000+ security guards, making it one the biggest security teams in the UK.
6th – Loomis UK Ltd
Sixth on our list is Loomis UK Ltd which was formed in 1996. Based in Nottingham, Loomis UK Ltd provides cash management services across the UK, ensuring cash is transferred safely. They work with many industries including ATM deployers, public sector bodies, and a range of other industry sectors.
Loomis UK Ltd is one of the biggest operating security companies on our list, operating in around 24 different countries and having an annual turnover of around £115 million.
5th – Wilson James Ltd
Moving down our list, is the next submission which is Wilson James LTD. Formed in 1989, and based in Salford, Manchester, Wilson James LTD has been a security force for over 30 years and has recently crept in fifth place of our biggest security companies in the UK.
Wilson James LTD provides security to all businesses and boasts one of the biggest security forces in the UK with over 5200 employees. In 2021, Wilson James saw an annual turnover of £120,000,000.
4th – T.S.S Total Security Services
Getting closer to number 1 with our next submission is T.S.S Total Security Services. Formed in 1989, and based in London, T.S.S remains on the top list for another year, with an annual turnover of £140,000,000, making it the fourth biggest security companies in the UK.
3rd – OCS Group Ltd
Holding our 3rd spot is OCS Group Ltd. Formed in 1995, OCS Group Ltd is based in Manchester, making it our 2nd submission for a security company in the Manchester area.
OCS Group Ltd offers a wide range of different services, working with many brands, and security is an industry they perform well in. They offer anything from manned guarding, alarm monitoring, CCTV, and car park management. OCS Group Limited saw an annual turnover of £190,000,000, making them one of the biggest companies that offer security in the UK.
2nd – G4s Secure Solutions
The second biggest security company in the UK is G4S. Formed in 1972, G4S has been a powerhouse in the industry for many years, remaining in the top 5 security companies in the UK and the world for a decade.
Based in London, G4S has expanded its audience globally and become a market leader in its industry. With an annual revenue of £7.7 billion and an annual turnover of £375,000,000, G4S remains 2nd spot in the top 10 biggest security companies in the UK.
1st – Mitie Security
Number 1 on the list is Mitie Security. Mitie Security has climbed the ranks in the last few years with G4S previously being the top dog in the industry.
Founded in 1987 in London, England, Mitie is an organisation that runs multiple different brands and services. One of the brands is Mitie Security which has become a staple in the industry. Mitie Security has an annual turnover of £942,000,000.
What Can Security Companies Offer You?
A security company’s main objective is to provide personalised security to businesses to ensure they are well protected. They need to ensure that they can provide services that meet the industries standard.
A good security company will;
- Apply to the industry regulations and standards to ensure your business is getting the best possible service.
- Will always listen to its clients, staff, and regulators to ensure the job is being performed correctly.
- Constantly review and improve their business for the benefit of all those associated with it.
- Provide quarterly reviews to establish the strengths and weaknesses of the security they provide
You can request a quote to get security to your door instantly!
About Us
Region Security Guarding delivers individualised security services to businesses across the United Kingdom. We can do this to the highest degree thanks to our security guards who are SIA-licensed.
We offer our utmost effort into providing, improving, and updating our security services. To do this, we conduct quarterly client interviews to monitor the benefits and drawbacks of the protection we offer. This enables us to pinpoint potential areas for improvement and, consequently, go forward as a company.
Looking For Guards?
To stay up to date with all the latest industry news, check out our blog where you can find articles about public safety and security accreditations.
Related Articles
5 Things You Need to Know About Martyn’s Law
The upcoming Martyn’s Law, named in honour of Martyn Hett, a victim of the 2017 Manchester Arena bombing, will soon introduce new security requirements for UK businesses, particularly those managing public venues. Learn about the impact it may have on your business.
What Is Public Safety?
There are many different public safety definitions, but the main idea that runs through each one of them is that citizens are protected from harm.
Terrorism In The UK – Are We Safe From A Terrorist Attack?
We can see there has been an overall decrease of incidents of terrorism over time, with some spikes occurring in the data. This is due to an increased awareness of the threat as well as governments across the world investing more resources into counter terrorism measures and security.
It is still something that effects our day to day lives and is always a risk. So, what are we doing to stay as safe as possible?
Do People Feel Safe In The Presence Of Uniformed Officers?
Recently we ran a survey asking around 500 participants if they felt safe in the presence of uniformed officers (police officers, security guards etc.) and the results we got back were quite surprising.
Why Should You Change Security Companies?
Having security in place is necessary for any business or organisation that has property they want to protect. For some business’s however, knowing whether or not you are getting the right deal can be more complex due to the fact that…
Security Accreditations Explained
When dealing with security companies, many tend to advertise their range of security accreditations. But what do they mean? In this article we’ll go over some of the most common security accreditations and what they mean for your business.
UK Terror Threat Level Explained
Few countries in the world can say that they have never been the victim of a terror attack – the UK is not one of them. In fact, ever since 2006, the terror threat level has never been below substantial. In this article, we will be talking all about the different terrorist threat levels in the UK.