The demand for reliable security services in the UK has grown rapidly, with businesses and individuals seeking professional support to safeguard their assets.
As crime trends evolve and security risks diversify, companies are increasingly turning to trusted providers for comprehensive protection. Whether it’s event management, surveillance systems, or static guarding, the security industry has become a critical element across sectors.
In 2025, choosing a top-performing security company isn’t just about reputation, but about proven efficiency, accreditation, and innovative services.
This blog presents the top 10 security companies in the UK, highlighting their strengths and what makes them stand out this year.
What Makes a Security Company Reliable in the UK?
When choosing a security company in the UK, reliability stands out as a key factor. A trustworthy provider isn’t just defined by a uniformed presence, it’s about professional standards, responsiveness, and the ability to handle diverse risk scenarios effectively.
Key Indicators of a Reliable Security Company:
- SIA Licensing: All security staff must be licensed by the Security Industry Authority, ensuring legal compliance and professionalism.
- Industry Experience: A solid background across various sectors, such as retail, events, or corporate, shows versatility and expertise.
- Swift Emergency Response: Reliable companies can quickly handle incidents, minimising risk and damage through prompt action.
- Positive Client Feedback: Testimonials and reviews reflect real-world trust and consistent service delivery.
- Advanced Technology Use: Integration of surveillance systems and real-time monitoring enhances overall efficiency and safety.
In addition to these, 24/7 service coverage, transparent operations, and regular internal training further cement a company’s dependability.
Firms with local reach across the UK also demonstrate a deeper understanding of regional needs, which helps build lasting client trust.
How Has the UK Security Industry Evolved in Recent Years?
Over the past decade, the UK security industry has experienced significant evolution, driven by rising urbanisation, technological advancements, and shifting crime patterns.
Traditional static guarding has expanded into more specialised services such as cyber surveillance, mobile patrols, and AI-powered CCTV systems. Many providers now offer real-time reporting and cloud-based monitoring to enhance transparency and efficiency.
The COVID-19 pandemic also reshaped the landscape, increasing the demand for crowd management, access control, and health-related security protocols.
Additionally, the surge in infrastructure development and public events across the UK has expanded the need for event-specific services and site security.
Accreditation and regulation have become more stringent, pushing companies to meet higher standards. Companies have adapted by investing in staff training and technological innovation. These advancements have positioned the security sector as a core component of public safety and business continuity in the UK.
What Types of Security Services Are Most in Demand in 2025?
As of 2025, UK businesses and institutions are prioritising comprehensive protection plans that include a variety of security services. Increased awareness and evolving threats have led to high demand in specific areas.
Here are the most in-demand services this year:
- Manned Guarding: Still a cornerstone of the industry for physical deterrence and response.
- CCTV Monitoring: Remote surveillance systems are widely used for cost-effective 24/7 observation.
- Mobile Patrols: Ideal for large premises needing periodic checks without full-time guards.
- Access Control Systems: Tech-enabled solutions to manage and monitor entry points.
- Event Security: Ensuring crowd safety and logistical coordination during public and corporate events.
- Keyholding and Alarm Response: Quick reaction services when alarms are triggered during off-hours.
The integration of smart technologies, such as AI and automation, has significantly improved the efficiency of modern security services.
Businesses across retail, construction, corporate, and healthcare sectors now rely on tailored, scalable solutions to stay protected while managing costs and evolving threats.
Why Choosing the Right Security Provider Matters for Businesses?
Operational Efficiency
Partnering with a capable security provider ensures smooth day-to-day operations without disruptions. Security incidents can halt business activities and affect staff productivity, but a competent firm prevents these risks proactively.
Risk Management
A well-qualified security firm helps businesses identify vulnerabilities and implement preventative measures. This reduces liability, protects assets, and contributes to compliance with UK laws and safety standards.
Reputation Protection
Customers, clients, and employees feel safer in a well-guarded environment. A visible, professional security presence not only deters threats but also enhances the public image of a business.
Legal and Regulatory Compliance
UK security regulations require licensed personnel and defined safety protocols. Reputable companies ensure all staff meet these requirements, which helps businesses avoid fines and legal consequences.
Top 10 Security Companies in UK 2025
1. G4S Secure Solutions UK
G4S Secure Solutions UK stands as one of the largest and most influential names in the UK’s private security industry. With a presence that spans multiple sectors and critical infrastructure, G4S delivers end-to-end services combining trained professionals and cutting-edge technology.
Core Services Offered:
- Security Professionals: Manned guarding, mobile units, canine patrols, and event security
- Security Technology: CCTV systems, access control, alarm systems, and remote monitoring
- Risk Management: Intelligence-led strategies and consultation
- Facilities Management: Hard and soft FM support for various industries
- Cash Solutions: Cash collection, processing, and delivery
- Care and Rehabilitation Services: Justice sector solutions including prison management
- Employment Services: Recruitment, training, and workforce development
G4S is currently the lead security provider for high-profile projects, including the Sizewell C nuclear station, demonstrating their capability in handling national infrastructure security.
Their vision is to be the world’s most trusted services partner, and they embody core values of agility, reliability, and innovation. As part of their sustainability and social responsibility agenda, they integrate ESG principles into everything from recruitment to contract execution.
The company’s expertise extends across industries such as aviation, data centres, healthcare, manufacturing, warehousing, utilities, and professional services. G4S continues to evolve under “Martyn’s Law” (Protect Duty), actively helping organisations prepare for new regulatory frameworks.
2. Mitie Security
Mitie Security, a division of the UK’s largest facilities management provider, is known for its high-quality service backed by a workforce of over 20,000 security professionals. Their approach combines skilled manpower with technology and insight, delivering tailored services across sectors.
Key Services Include:
- Security Guarding: Certified professionals securing premises across the UK
- Fire & Security Systems: Installation and maintenance of critical detection systems
- Intelligence Services: Real-time threat monitoring and analysis
- Front of House: Concierge-style security services that enhance visitor experience
- Vetting Services: Background checks and fraud prevention through Procius and UKCRBs
Mitie’s scale enables them to protect over 36 million hours annually, and their integrated security strategy includes both prevention and resilience.
They work across business and industry, government, life sciences, transport, retail, telecoms, and manufacturing, adjusting their services to each sector’s specific risk profile.
As the UK’s largest private security employer, Mitie is future-focused, offering zero-carbon, tech-enabled services that deliver safety while optimising operational performance. Their mission is rooted in creating better places and thriving communities, ensuring both safety and social value are upheld.
3. Securitas UK
Securitas UK offers a highly adaptive and modular security model, known for its “six protective services” strategy. The company emphasises a blend of human skills and intelligent technologies to deliver security solutions that are tailored and scalable.
Protective Service Layers:
- On-site Guarding: SIA-trained professionals, canine teams, aviation and event security
- Mobile Services: Patrols, keyholding, and vacant property inspections
- Remote Monitoring: CCTV, video analytics, and alarm response
- Electronic Security: Access control, alarm systems, and surveillance installations
- Fire & Safety: Continuity planning and fire response teams
- Corporate Risk Management: Consultancy, threat detection, and digital security insights
With 80+ years of global experience and a presence in 44 markets, Securitas focuses on making the world a safer place by addressing each client’s unique risks. Their SME-focused packages and large enterprise contracts allow flexibility for all business sizes.
Securitas recently enhanced its offering through the acquisition of STANLEY Security, further strengthening its electronic surveillance and fire protection capabilities.
Their services are driven by core values of integrity, vigilance, and helpfulness, and they are committed to sustainability and smart protection strategies.
4. Corps Security
Founded in 1859 and operating as a Social Enterprise, Corps Security is unique among major UK providers. Their mission goes beyond safety, focusing also on social value, inclusion, and sustainability within the security industry.
Specialist Services:
- Security Guarding: High-quality personnel serving banks, retailers, public services, and large estates
- Remote Monitoring: 24/7 observation from state-of-the-art facilities
- Security Consultancy: Penetration testing, threat analysis, and expert advice
- Drone Security: Innovative aerial surveillance solutions for expansive sites
Corps Security supports over 1,500 businesses through monitoring services and deploys 3,000+ security guards across the UK. Their core strength lies in combining over 166 years of experience with modern technologies, including drone surveillance and integrated command centres.
They are also carbon-neutral and committed to the Living Wage movement, ensuring ethical business practices are embedded in their operation. Clients praise Corps not just for their capability but for their guidance and ability to deliver future-proofed security strategies.
As a result, Corps is seen as both a security leader and a force for good, distinguishing itself through purpose-driven service delivery and long-term partnerships.
5. ICTS UK
ICTS UK, part of the ICTS Europe Group, provides strategic and high-security solutions to clients in regulated and high-risk environments. Their holistic, multi-layered service model combines personnel, canine units, and innovative technologies.
Three Key Fields of Expertise:
- Security Personnel: Manned guarding, concierge services, and SIA-trained officers
- Canine Security: Explosive, drug, electronic device detection and event-focused patrols
- Security Technology: AI-enabled surveillance, biometric access control, and integrated systems
With over 4,400 personnel across 260 UK locations and a revenue exceeding £170 million in 2024, ICTS is one of the most resourceful providers in the UK. Their clients include airports, nuclear facilities, government institutions, and high-profile event venues.
ICTS’s canine division is one of the most accredited in the UK, with compliance to NASDU, NPCC, and HABC standards. Their dogs are used across multiple sectors, including sports, exhibitions, and critical infrastructure.
The firm’s strength lies in its ability to offer a complete, scalable solution, tailored to specific threat levels and operational requirements. With a focus on resilience, innovation, and rapid deployment, ICTS UK is an elite provider for organisations seeking specialised protection.
6. Wilson James
Wilson James is widely recognised for its commitment to delivering high-quality security, aviation, and logistics solutions across the UK. With over 30 years of experience and a forward-thinking mindset, the company works across sectors such as critical national infrastructure, aviation, and corporate real estate.
Core Security Offerings:
- Manned Guarding and Concierge Services: Trained professionals delivering front-of-house and security duties with customer service excellence.
- Technology Integration: Real-time incident reporting tools and systemised monitoring.
- Consultancy and Risk Management: Strategic security planning, audits, and penetration testing.
Wilson James is not only about presence but also intelligence-led services that strengthen organisational resilience. They provide protection for high-profile buildings, cultural institutions, data centres, and public spaces.
Through their innovative WJ App, clients benefit from transparency and control with performance tracking and incident logging.
The company is known for its ethical standards, inclusion programmes, and support of sustainability in operations.
With a client-focused approach and long-term partnerships, Wilson James stands out in 2025 as a reliable name for integrated security and critical support services across the UK.
7. Kingdom Services Group
Kingdom Services Group combines robust service delivery with a unique values-driven approach, focusing on security, cleaning, training, and recruitment.
With a £300 million turnover and over 11,500 employees, Kingdom offers national strength with a personal touch across more than 5,000 sites.
Comprehensive Security Services:
- On-Site Guarding and Access Control
- Retail and Shopping Centre Security
- Mobile Patrols and Alarm Response
- CCTV Operations and Fire Warden (Waking Watch)
- Front-of-House and Concierge Officers
Kingdom delivers sector-specific solutions across industries like logistics, retail, manufacturing, education, and healthcare.
What sets them apart is their “Services with Care” philosophy, tailoring protection not just around assets but around people and culture. Their vetting and recruitment standards are backed by Kingdom Academy training, ensuring top-tier professionalism.
Their client retention rate of 97% reflects their service reliability and customer satisfaction. With a legacy of growth from a small business in 1993 to a UK-wide and internationally expanding organisation, Kingdom’s resilience and people-first mindset make them a standout in today’s security market.
8. OCS Group UK
With more than a century of heritage, OCS Group UK delivers sophisticated security services combined with cutting-edge technology.
The company covers over 6 million hours of guarding annually and employs over 9,000 qualified personnel, offering solutions for both the private and public sectors.
OCS Security Core Capabilities:
- Static and Mobile Guarding
- Smart CCTV and Surveillance
- Biometric Access Systems
- Emergency Response and Loss Prevention
- Corporate and Retail Security
OCS integrates its security offering into wider facilities management, providing clients with seamless operational synergy. Their technology arm, OCS Advance, utilises AI, smart buildings, drones, and augmented reality to enhance situational awareness and reporting accuracy.
The group champions ESG through ethical training, gender diversity, and environmentally responsible operations. Their SIA accreditation and alignment with national bodies like the City Security Council make OCS a trusted partner for future-proof, inclusive, and effective security across the UK.
9. LeisureGuard Security
LeisureGuard Security, headquartered in Manchester, is a rapidly expanding security firm known for its affordable and highly adaptable solutions.
With over 25 years in the industry, they offer a wide range of protective services backed by a 24/7 control room.
Key Services Offered:
- Manned Guarding and Door Supervision
- Event and Hotel Security
- Construction Site Protection
- Retail and Office Security
- K9 Units and Patrols
- Keyholding and Alarm Response
Their mobile CCTV towers and patrol solutions are effective deterrents against theft and vandalism, while their SIA-licensed personnel also handle concierge duties, customer service, and close protection roles.
What makes LeisureGuard unique is its flexibility and competitive pricing, starting at £16.95 per hour, allowing businesses of all sizes to afford quality security.
Their community-focused ethos, local presence, and high service ratings (4.9/5 stars) make them one of the UK’s most approachable and reliable security providers in 2025.
10. Oakpark Security
Oakpark Security, part of the Vertas Group, specialises in business security and resilience solutions across East Anglia and the South Coast.
With over 160 SIA-licensed officers and 1,200+ protected locations, Oakpark blends manpower with intelligence-led technology.
Service Highlights:
- Static Security Personnel and Front of House
- Mobile Patrols and Alarm Response
- Remote CCTV Monitoring
- Locking & Unlocking Services
- Security Consultancy and Policy Development
Oakpark’s operations are data-driven, utilising mobile incident-reporting technology to respond quickly and efficiently. Their services support sectors including education, commercial real estate, utilities, and logistics.
They operate from five regional offices, allowing them to maintain local relationships while delivering national-level support.
As a company focused on proactive risk management, Oakpark helps organisations not only secure their sites but also become more operationally resilient.
Their consultative approach and adaptable security strategy make them a top contender among UK security firms in 2025.
Comparison Table of Top 10 Security Companies in UK 2025
Selecting the right security company requires assessing service range, technology, accreditations, and industry expertise.
The comparison table below showcases the top 10 UK security firms, highlighting their strengths in reliability, innovation, and client-focused services to guide informed business decisions.
| Company | Key Services Offered | SIA Approved | Specialised Sectors | Unique Strength |
| G4S Secure Solutions UK | Guarding, cash solutions, tech security, FM, rehabilitation | Yes | Government, aviation, logistics, healthcare | End-to-end integrated security with national reach |
| Mitie Security | Guarding, intelligence, front-of-house, fire systems, vetting | Yes | Retail, healthcare, transport, life sciences | Largest UK provider with 20,000+ personnel |
| Securitas UK | On-site, mobile, remote, risk management, electronic, fire safety | Yes | SMEs, data centres, public sector, construction | Six-layer protective services and custom solutions |
| Corps Security | Guarding, drone surveillance, remote monitoring, consultancy | Yes | Corporate, public services, events | Social enterprise model and ethical focus |
| ICTS UK & Ireland | Security staff, canine, tech systems, airport & high-risk security | Yes | Aviation, infrastructure, transport | Specialist in canine services and high-security zones |
| Wilson James | Estate guarding, concierge, consulting, digital reporting tools | Yes | Corporate estates, logistics, aviation | Transparent operations with real-time tracking |
| Kingdom Services Group | Retail security, mobile patrols, keyholding, concierge, response teams | Yes | Retail, manufacturing, education, logistics | Service-with-care philosophy and community initiatives |
| OCS Group UK | 24/7 guarding, smart security tech, retail protection, FM integration | Yes | Corporate, retail, healthcare | Smart building tech and AI-driven surveillance systems |
| LeisureGuard Security | Manned guarding, event security, construction, hotel and retail protection | Yes | Commercial, construction, entertainment | Affordable rates with flexible, scalable coverage |
| Oakpark Security | Security personnel, mobile patrols, CCTV, keyholding, audits, lone worker protection | Yes | SME, education, infrastructure, property | Resilience-focused with regional teams and consultancy |
This comparison highlights the standout capabilities and specialities of each company, enabling businesses to align their choice with specific protection priorities.
Conclusion
Selecting the right security provider is a pivotal decision for any UK-based business or organisation in 2025. As threats evolve and regulatory demands rise, only firms with proven expertise, technological competence, and client focus can be trusted to deliver.
The top 10 companies listed above represent the best in the industry, combining years of experience with modern solutions.
Whether you’re a retailer, event organiser, or large enterprise, these companies offer scalable and reliable services tailored to your specific security needs. Make the smart choice by aligning with a provider that prioritises safety, compliance, and continuous innovation.
FAQs About Security Companies in UK
What are SIA-approved contractors and why do they matter?
SIA-approved contractors meet government security standards, ensuring staff are trained and qualified. This improves service quality and client trust.
Is there a difference between manned guarding and mobile patrols?
Yes, manned guarding involves full-time on-site personnel while mobile patrols check premises periodically. Each suits different risk levels and budgets.
How can I verify a security company’s credentials in the UK?
You can check the Security Industry Authority (SIA) website for licence validation. Client testimonials and certifications also add credibility.
Are CCTV monitoring services more effective than on-site security?
CCTV offers cost-effective 24/7 surveillance, while on-site security provides physical presence. Combining both offers enhanced protection.
Do UK security firms offer event-specific services?
Yes, many firms provide tailored event security including crowd control, bag checks, and VIP escort services. These services ensure public safety.
How much does it cost to hire a security firm in the UK?
Costs vary depending on services, location, and duration. On average, rates range from £12 to £25 per hour per guard.
Can small businesses afford professional security services?
Yes, many firms offer affordable packages for small businesses. Mobile patrols and part-time coverage are cost-effective options.
