Cybersecurity is one of the most hotly contested topic in today’s time. Each and every industry in the market are adapting the cybersecurity as a strong base to make their functions more robust. As much every corner of the globe requires cybersecurity, here we come up with the top 20 cyber security companies in London seeing the year 2025!
The Top 20 Cyber security Companies In London 2025!
1. Qualysec
Qualysec Technologies, a top cybersecurity organization founded in 2020, has rapidly expanded to emerge as among the largest and most renowned in the field of cybersecurity in London. The company is a major cybersecurity firm due to its unique expertise and expertise in secure monitoring techniques. Qualysec professionals can help find flaws that could be leveraged by hackers. Following, identifying these flaws, Qualysec works with the organization to develop a strategy to address them and improve the company’s security in basic compliance. Amongst the many functionalities, the firm also offers:
- Web App Pentesting
- Mobile App Pentesting
- API Pentesting
- Cloud Security Pentesting
- IoT Device Pentesting
- AI /ML Pen-testing
Talk to our Cybersecurity Expert to discuss your specific needs and how we can help your business.
2. First Response
Leading cybersecurity consulting firm First Response provides an extensive variety of amenities to shield European companies and organizations from online attacks. They are skilled in online forensics and crisis management, looking into and handling hacking attempts, online attacks, and different risks.
To further guarantee the safety of the customer’s systems and private data, they also offer solutions like risk assessments, penetration testing, and regulatory consultation. The organization employs subject-matter specialists who remain on call around the clock to help customers.
3. ITCSecure
London, UK-based ITC Secure is a top cybersecurity company with an advising focus. To protect infrastructure, systems, and confidential information from cyber crimes, they offer safety consultation, penetration testing, incident response, and managing compliance.
The professionals on the organization’s staff have a wealth of cybersecurity expertise. By instruction and research, they are committed to assisting organizations in staying up to date on the most recent dangers and optimal procedures.
ITC Secure, which has an image for providing outstanding solutions and an unwavering emphasis on client satisfaction, combines the brightest brains in safety and cutting-edge technology to support company success. They also have ISO 27001 and CREST certifications, which guarantee that operations meet the requirements of the sector
4. Urban Network
Established in 2002, London-based Urban Network is a supplier of professional information technology services. They deliver a variety of cyber security solutions that are customized to meet the specific requirements of every customer, such as incident response, penetration testing, cyber-attack data, and security evaluations.
They have joined up with leading IT companies to provide fully-managed support for any need and are dedicated to creating distinctive approaches that satisfy the unique requirements of every customer.
To keep on the forefront of the IT industry and guarantee that customers remain safe from the newest threats from hackers, the business’s employees receive regular instruction.
5. Crossword Cybersecurity
London-based Crossword Cybersecurity is the best cyber security service provider that specializes in offering an extensive variety of services for companies of every size. Companies use a mix of individuals, processes, and equipment to guarantee the greatest level of safety since they recognize how important it is to secure organizations.
A comprehensive security measure is offered by the business’s skilled advisory staff, management services, and SaaS products. In order to integrate the most the most recent findings into its goods and services, Crossword works with top UK universities.
The strategy and risk control, the protection of supply chains, malware detection and its reaction, and managing digital identities are just a few of the security domains in which the company specializes.
6. Sophos
Founded in 1986, Sophos is a multinational technology company that specializes in offering cyber threats and complete safety measures to shield companies and organizations from online dangers.
Complete from start to finish protection, identification of malware and elimination, information safety tracking and leadership, software elimination and safety, proactive attack reply, web-based antivirus programs, private clouds, and anti-intrusion systems are just a few of the many services that the organization provides.
In order to remain aware of possible attacks and protect the information of its customers data, Sophos is also renowned for its proficiency in immediate tracking of hackers to be risks, or cyberattacks that weren’t seen previously.
7. Fortinet
Having a worldwide network and a track record for being one of the biggest cybersecurity assessment suppliers worldwide, Fortinet is a top supplier of cyberspace safety goods and services. The Fortinet FortiGate firewall, FortiWiFi wireless protection, and Fortinet iCloud cloud solutions are just a few of the numerous options they provide to shield companies from threats.
These solutions are designed to assist companies in identifying, thwarting, and preventing cyberattacks, protecting their critical information and company procedures. The items included in Fortinet’s suite are made to offer a complete defense from a variety of online dangers, such as spyware, network-based attacks, sophisticated recurrent threats, and legal and governmental demands.
8. Akamai
Multinational cloud computing firm Akamai offers creative ways to assist companies in safeguarding their information. Content Delivery Networks (CDNs), Safety Pathways Endpoint Privacy Options, Secure Cloud Solutions, and Global Image Management are just a few of the goods and services they provide. Akamai lowers total costs while assisting companies in swiftly implementing the best safety measures for their requirements.
9. Arxan
For more than 20 years, Arxan, a world pioneer in security measures, has remained at the leading edge of defending businesses against the most recent online dangers. Their extensive array of commodities and amenities enables companies to protect their information and processes from cyberattacks.
The Singapore Exchange content safety device guarantees the safety of private information both in movement and at idle; the ProtectIQ cloud safety structure offers you full oversight into all facets of the online action; the Protected Data Platform (PDP), gives you authority over the safety of responsive information in the cloud; and the Arrest Force detection system, which blocks unwanted traffic via accomplishing your company’s infrastructure, are just a few of Arxan’s prestigious remedies.
10. Brainloop
A leading global supplier of cybersecurity solutions, Brainloop protects companies against online attacks. They provide a wide range of items and services, such as Enterprise Mobility Management (EMM) Solutions, Supply Solutions, Automatic Target recognition and Monitoring (ATIM) technologies, Safety online Data Analysis, risk Identification and Response (TDR), and Ongoing Knowledge Feeds for Security Operations Centers (CIFSOCs).
By streamlining safety measures and offering current information on potential risks, their products enable enterprises to keep a proactive safety record.
The products from Brainloop are made to give companies low-cost and broad safety measures while doing away with the requirement for specialized security guards.
11. Darktraces
Darktrace specializes in actual real-time cybersecurity threat detection and response with the use of AI. It is renowned for offering creative fixes for a range of safety problems, such as dangers make connections to infrastructures cloud-based settings, Internet of Things (IoT) factories, etc.
12. Ernst & Young (EY)
Ernst & Young (EY) assists companies in navigating the intricacies of information security by providing a variety of cyberspace safety services, such as risk administration, consultancy, and advising.
They have been developed digital trailblazers in the battle for confidentiality of information and other safety issues, and they endeavor to improve the workplace.
13. Pwc
PricewaterhouseCoopers offers a wide range of cyber safety solutions, including risk administration, planning, and consultancy to assist businesses protect their digital information.
They are renowned for helping businesses adapt to the rapidly evolving online landscape. Technology advice, handling risks, and leadership are their greatest assets.
14. GoAllSecure
Among the top suppliers of security products worldwide is GoAllSecure. With offices in the Middle East, Europe, and the Pacific region, they evaluate an organization’s resources and prioritize cybersecurity laws while identifying appropriate ways to keep it safe from contemporary dangers.
They assist organizations in creating a robust information security mindset by enhancing knowledge about cyber security online via creative training techniques and modeling.
15. Claranet Cyber Security
Claranet Cyber Security provides a variety of cyber security breaches, such as consultation and maintained safety services. They assist companies in realizing their company goals and safeguarding their computer systems.
They are well-known for offering solutions like maintained safety, cyber instruction, and penetration testing, and their offices are present all over the world.
16. NCC Group
NCC Group is a recognized worldwide innovator in digital safety consultancy and risk mitigation. They provide a variety for services that assist organisations improve their safety record.
These amenities encompass evaluation and advice, monitoring and consequence, regulation, and education. Companies also collaborate with numerous sectors throughout the world.
17. Kroll
Kroll is a member of the Duff & Phelps family of enterprises. It focuses on cyberspace threat prevention and handling incidents, offering full solutions for addressing and mitigating cyber safety risks. In addition to this, but they also offer their customers with safety and financial advice through statistical analysis and their own expertise.
18. Clearswift
Clearswift, like its underlying business Fortra, is an innovator in digital safety companies. It concentrates on the theft of data avoidance, encrypted email remedies, and other services to assist organizations in safeguarding private data. They are well-known for providing inventive and adaptable answers to complicated digital safety concerns.
19. SentryBay
SentryBay offers cutting-edge tools for better internet safety and specializes in safe surfing and protection of endpoint systems. To ensure a safe browsing experience, they concentrate on shielding consumers from dangers like phishing and malware. Their cutting-edge defense against distant and mixed employment environments has revolutionized.
20. Foxcube IT
Foxcube IT is a cyber security vendor that offers education and consultation. Via advisory services and educational initiatives, they assist organizations in strengthening their technological safety stance. Among its safety offerings are Microsoft cloud solutions, technical assistance, and IT assistance.
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Conclusion
Investing in cybersecurity is crucial, and picking the best provider to safeguard your information is crucial. The businesses included in this blog post offer a variety of offerings and are some of the most notable in this region. If you’re prepared to advance your safety precautions, get in touch with a few of those leading suppliers.
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