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Top London Cybersecurity Companies (133)

Artificial Intelligence • Cloud • Sales • Security • Software • Cybersecurity • Data Privacy
6 Offices
2,461 Employees

SailPoint is the leader in identity security for the cloud enterprise. Our identity security solutions secure and enable thousands of companies worldwide, giving our customers unmatched visibility into the entirety of their digital workforce, ensuring workers have the right access to do their job – no more, no less.


Fintech • Legal Tech • Software • Financial Services • Cybersecurity • Data Privacy
40 Offices
8,000 Employees

CSC is a global leader in providing business, legal, tax, and digital brand services to companies around the world. With more than 8,000 employees, CSC operates in more than 140 jurisdictions, delivering solutions that help businesses thrive. We pride ourselves on our client-focused approach, market-leading expertise, and unmatched global reach.


Aerospace • Hardware • Information Technology • Security • Software • Cybersecurity • Defense
19 Offices
40,000 Employees

Improving the future and protecting lives is an ambitious mission, but it’s what we do. As a leading aerospace, defense, and security company, we work together to deliver a full range of products and services for air, land, space, and naval forces, as well as advanced electronics, security, information technology solutions and customer support services. How we work is rooted in purpose – a purpose to protect those who protect us, to unite our community of colleagues and customers, and to drive forward the growth and development of our exceptional team members. It's where purpose connects.


Hardware • Information Technology • Security • Software • Cybersecurity • Conversational AI
6 Offices
3,000 Employees

Meraki is a Greek word meaning “something done with soul, creativity, or love.” With this name as our mantra, we’re building a welcoming workplace that attracts eclectic, curious, purposeful people who unite to ignite our customers’ passions. Together, we create powerful, simple technology with the potential to change everything.


Fintech • Professional Services • Consulting • Energy • Financial Services • Cybersecurity • Generative AI
24 Offices
6,000 Employees

Capco, a Wipro company, is a global management and technology consultancy specializing in driving transformation in the energy and financial services industries. Capco operates at the intersection of business and technology by combining innovative thinking with unrivalled industry knowledge to fast-track digital initiatives for banking and payments, capital markets, wealth and asset management, insurance, and the energy sector. Capco’s cutting edge ingenuity is brought to life through its award-winning Be Yourself At Work culture and diverse talent. TRUSTED ADVISORS - Our collaborative and entrepreneurial approach position us as trusted long-term partners to our clients. DEEP EXPERTISE - Clients look to us for clear guidance, proven expertise, and the support they need to set their companies up for success. DISRUPTIVE SOLUTIONS- We do not provide off -the-shelf answers to clients’ challenges. Instead, we work in close collaboration to understand the issues, and craft disruptive, bespoke solutions. ACCOUNTABILITY AND OWNERSHIP - We recognize every client has distinct needs and expectations, and we take ownership and accountability for the solutions we design, build, and deliver.


Software • Analytics • Cybersecurity
4 Offices
1,173 Employees

Cellebrite is the leader in digital intelligence and investigative analytics, partnering with public and private organizations to transform how they manage data in investigations to accelerate justice and ensure data security.


Software • Cybersecurity
London, England
32 Employees

Valarian delivers advanced data sovereignty infrastructure engineered to empower commercial enterprises and government institutions with full data ownership. Our solution is built to give customers complete control over their data, leveraging strategic localisation, granular access controls, and thorough auditability. Amid rising geopolitical and cyber threats, Valarian fortifies critical operations, enhancing resilience, securing privileged communications, and protecting IP and trade secrets. In this way, we enable corporate and government entities to innovate and compete globally with unwavering confidence.


Cloud • Information Technology • Security • Software • Cybersecurity
13 Offices
3,900 Employees

Cloudflare, Inc. (NYSE: NET) is the leading connectivity cloud company on a mission to help build a better Internet. It empowers organizations to make their employees, applications and networks faster and more secure everywhere, while reducing complexity and cost. Cloudflare’s connectivity cloud delivers the most full-featured, unified platform of cloud-native products and developer tools, so any organization can gain the control they need to work, develop, and accelerate their business. Powered by one of the world’s largest and most interconnected networks, Cloudflare blocks billions of threats online for its customers every day. It is trusted by millions of organizations – from the largest brands to entrepreneurs and small businesses to nonprofits, humanitarian groups, and governments across the globe.


Artificial Intelligence • Big Data • Blockchain • Cloud • Internet of Things • Cybersecurity
4 Offices
3,848 Employees

We accelerate tech adoption through our services of Cyber Security, Cloud, IoT, Big Data, AI and Blockchain. Follow on our social media channels: • Twitter: https://twitter.com/TefTech_EN • LinkedIn Telefónica Tech AI of Things: https://www.linkedin.com/showcase/telefonicatech-aiofthings • Linkedin Telefónica Cyber Security & Cloud: https://www.linkedin.com/showcase/telefonicatech-cybersecurity-cloud • Youtube: https://www.youtube.com/user/telefonicatech • Instagram: https://www.instagram.com/telefonicatech • Twitch : https://www.twitch.tv/telefonicatech • Blog: https://business.blogthinkbig.com/telefonica-tech/

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Big Data • Fintech • Information Technology • Business Intelligence • Financial Services • Cybersecurity • Big Data Analytics
38 Offices
13,000 Employees

TransUnion is a global information and insights company that makes trust possible by ensuring that each consumer is reliably and safely represented in the marketplace. We do this by having an accurate and comprehensive picture of each person. This picture is grounded in our legacy as a credit reporting agency which enables us to tap into both credit and public record data; our data fusion methodology that helps us link, match and tap into the awesome combined power of that data; and our knowledgeable and passionate team, who stewards the information with expertise, and in accordance with local legislation around the world. Because of our work, organizations can better understand consumers in order to make more informed decisions, and earn their trust through great, personalized experiences, and the proactive extension of the right opportunities, tools and offers. In turn, consumers can be confident that their data identities will result in the opportunities they deserve. We make trust possible, so businesses and consumers can transact with confidence and achieve great things. We call this Information for Good®—it’s our purpose, and what drives us every day.


Artificial Intelligence • Cloud • Information Technology • Security • Software • Cybersecurity • Data Privacy
11 Offices
1,000 Employees

Snyk is the leader in developer security. We empower the world’s developers to build secure applications and equip security teams to meet the demands of the digital world. Our developer-first approach ensures organizations can secure all the critical components of their applications from code to cloud, leading to increased developer productivity, revenue growth, customer satisfaction, cost savings, and an overall improved security posture. Used by 4,000+ customers worldwide today, Snyk’s Developer Security Platform automatically integrates with a developer’s workflow and is purpose-built for security teams to collaborate with their development teams.


Artificial Intelligence • Information Technology • Security • Consulting • Cybersecurity
London, England
46 Employees

We provide deep expertise with technical and business specialists to help clients secure and protect the UK. We are Subject Matter Experts in the National Security, Law Enforcement, Telecommunications, and Health & Care sectors. In complex environments, we use innovative methods to solve the hardest data challenges to help organisations make more informed and accurate decisions, at scale and faster. Our specialisms include: - Cyber Security - AI-Driven Data Intelligence & Science - Communications Security ​We are agile, responsive, independent, and collaborative while our values of Fair, Transparent and Daring guide all our decision making. We tackle complex challenges and iteratively transform them into clear technical and business implementation strategies to deliver business outcomes


Cloud • Machine Learning • Security • Software • Cybersecurity
2 Offices
781 Employees

Telesign provides continuous trust to leading global enterprises by connecting, protecting, and defending their digital identities. Telesign verifies over five billion unique phone numbers a month, representing half of the world’s mobile users, and provides critical insight into the remaining billions. The company’s powerful AI and extensive data science deliver identity with a unique combination of speed, accuracy, and global reach. Telesign solutions prevent fraud, secure communications, and enable the digital economy by allowing companies and customers to engage with confidence.


Artificial Intelligence • Hardware • Information Technology • Security • Software • Cybersecurity • Big Data Analytics
24 Offices
21,000 Employees

About Motorola Solutions | Solving for safer Safety and security are at the heart of everything we do at Motorola Solutions. We build and connect technologies to help protect people, property and places. Our technologies support public safety agencies and enterprises alike, enabling the collaboration that’s critical for safer communities, safer schools, safer hospitals and safer businesses.


Digital Media • Gaming • Internet of Things • News + Entertainment • Retail • Business Intelligence • Cybersecurity
7 Offices
68,848 Employees

Comcast delivers broadband, mobile, and video products that delight customers and technology that powers the future; produces and distributes leading entertainment, sports, and news, and brings incredible theme parks and attractions to life. At the heart of Comcast are our people. Our engineers, designers, creators, storytellers, and entrepreneurs are passionate about the important role we play in millions of people’s lives. Come create the future with us.


Security • Cybersecurity
15 Offices
1,763 Employees

Darktrace, a global leader in cyber security AI, delivers world-class technology that protects over 5,500 customers worldwide from advanced threats, including ransomware and cloud and SaaS attacks. The company’s fundamentally different approach applies Self-Learning AI to enable machines to understand the business in order to autonomously defend it. Headquartered in Cambridge, UK, the company has 1,500 employees and over 30 offices worldwide. Darktrace was named one of TIME magazine’s ‘Most Influential Companies’ for 2021.


Aerospace • Information Technology • Cybersecurity • Defense • Manufacturing
24 Offices
141,000 Employees

We are engineers and technicians. Skilled scientists and thinkers. Bold innovators and dreamers. We work on advanced technologies that will transform aerospace as we know it. We’re the leading manufacturer of defense, space and security systems, commercial jetliners, and service provider of aftermarket support.


Cloud • Security • Software • Cybersecurity
City of London, England
30 Employees

BitNinja provides 3E Linux server protection for large hosting providers and small businesses equally. The three E stands for: effective, effortless, and enjoyable. Effective because of our unique Defense Network that uses the power of the Ninja Community. Every BitNinja-protected server worldwide shares attack information with each other, resulting in a more intelligent and stronger protection shield by every single assault. Effortless because it is fast and easy to install, so your server protection is up and running in no time. It requires no maintenance, just keep running in the background and protecting your and your customer’s servers while you can concentrate on other aspects of your business with peace of mind. Enjoyable because you can take joy in the benefits of BitNinja, like the increased server capacity caused by the significant drop in the server load. Furthermore, you can easily manage all the modules and features on the unified dashboard and check how the software catches malicious traffic in real-time. Join our Defense Network for free today!


Information Technology • Cybersecurity
London, England
27 Employees

Manage true physical segmentation, remotely, instantly and without using the internet. No VPN’s, no IPv6, no IPv4 - no packets to sniff and no appliances to be seen. “I would like to introduce you to an exciting new approach to protecting high value network assets - a physical "drawbridge" called Goldilock. If you need to protect crown jewel data, such as intellectual property or computing infrastructure, this is your solution…it uniquely achieves what no other solution can.” Gregory Akers, Advanced Security Research, CISCO. Find out why Britain’s GCHQ National Cyber Security Center, chose Goldilock. Dynamic Physical Network Segmentation (#DPNS) Goldilock is revolutionizing the way data and critical infrastructure are protected online. How? Our patented solution allows you to physically connect and disconnect anything from the internet, from anywhere, at anytime, without using the internet do do it - thus eliminating the internet as a threat vector. The Goldilock premise is that your data and systems should not be physically connected to the Internet when you’re not using them, but that they need to be available to you from anywhere, immediately. Goldilock's non-IP controlled Drawbridge technology applies the same principle and technology to network architecture - allowing network administrators, directors and other authorized individuals to instantaneously connect and disconnect devices, control systems and network zones for data isolation, mitigation of zero-day or ransomware incidents. Have total control of your data and infrastructure, save money and sleep better knowing Goldilock is at your fingertips


Information Technology • Cybersecurity
London, England
12 Employees

We are a next-gen Operational Technology (OT) cybersecurity leader focused on safeguarding industrial environments so that we can fulfil our purpose: Provide best-in-class OT cyber security services and solutions that support safe, secure and resilient operations to humanity. This is our ultimate motivation and why we exist. We bridge the gap between IT and OT cybersecurity by offering decades of experience as asset owners, cyber security practitioners in both IT and OT environments and helping many critical infrastructure sectors in power and electricity, water utilities, oil and gas, energy, and manufacturing industries to establish a defensible network. We are in the midst of an exciting journey to go beyond just services and solutions to a company that is at the centre of a Industry 4.0 and 5.0 era where humans work alongside advanced technologies to enhance processes within the workplace. The explosion of connected devices and data has led to several technology inflections – AI, 5G, IIoT, network transformation, and the rise of the intelligent edge that together will shape the future of OT. Whether it’s using AI to stop malicious threat actors interfering with process safeguarding functions or creating a defensible network through intelligent layers of effective controls, our services and solutions help solve global challenges. Yet, our work is far from done.