Top London Cybersecurity Companies (206)

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.

At SailPoint, we believe enterprise security must start with identity at the foundation. Today’s enterprise runs on a diverse workforce of not just human but also digital identities—and securing them all is critical. Through the lens of identity, SailPoint empowers organizations to seamlessly manage and secure access to applications and data at speed and scale. Our unified, intelligent, and extensible...

Datadog (NASDAQ: DDOG) is a global SaaS business, delivering a rare combination of growth and profitability. We are on a mission to break down silos and solve complexity in the cloud age by enabling digital transformation, cloud migration, and infrastructure monitoring of our customers' entire technology stacks. Built by engineers, for engineers, Datadog is used by organizations of all sizes...

Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re building a resilient economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help...

A leading global aerospace company and top U.S. exporter, Boeing develops, manufactures and services commercial airplanes, defense products and space systems for customers in more than 150 countries. Our U.S. and global workforce and supplier base drive innovation, economic opportunity, sustainability and community impact. Boeing is committed to fostering a culture based on our core values of safety, quality and...

Nasuni is a leading unstructured data platform for enterprises where file data is mission-critical for both people and AI. We power the operational file layer where work happens — helping organizations manage, protect, and activate data so teams can work smarter, reduce costs, and operate securely without limits. Built on a patented architecture that fuses cloud object storage with enterprise...

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...

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...

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...

Rubrik (NYSE: RBRK), the Security and AI Operations Company, leads at the intersection of data protection, cyber resilience, and enterprise AI acceleration. Rubrik Security Cloud delivers complete cyber resilience by securing, monitoring, and recovering data, identities, and workloads across clouds. Rubrik Agent Cloud accelerates trusted AI agent deployments at scale by monitoring and auditing agentic actions, enforcing real-time guardrails, fine-tuning...

Zscaler accelerates digital transformation so our customers can be more agile, efficient, resilient, and secure. Our cloud native Zero Trust Exchange platform protects thousands of customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location.

Snyk, the leader in secure AI software development, empowers organizations to build fast and stay secure by unleashing developer productivity and reducing business risk. The company’s AI Trust Platform seamlessly integrates into developer and security workflows to accelerate secure software delivery in the AI Era. Snyk delivers trusted, actionable insights and automated remediation, enabling modern organizations to innovate without limits....

For more than two decades, Imprivata has been redefining how life- and mission-critical industries secure and manage digital identities. We empower healthcare and enterprise organizations to enable fast, compliant, and secure access to technology—allowing clinicians and staff to stay focused on what matters most: patient care and operational excellence. Our digital identity platform is purpose-built for complex environments where every second...

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...

Bridewell is a leading cyber security services company that specialises in protecting and transforming critical business functions for some of the world’s most trusted organisations. Its teams of security experts work alongside clients to deliver end-to-end services that solve key business challenges. Bridewell's specialists are highly accredited by major industry bodies and have extensive experience delivering services across cyber security,...

Aqua Security is the largest pure-play cloud native security company, providing customers the freedom to innovate and accelerate their digital transformations. The Aqua Platform provides prevention, detection, and response automation across the entire application lifecycle to secure the build, secure cloud infrastructure and secure running workloads wherever they are deployed.

Veriff is the preferred identity verification partner for the world’s biggest and best digital companies, including pioneers in fintech, crypto, gaming and the mobility sectors. We provide advanced technology, deep insights and expertise from our foundation in digital-first Estonia and honed over decades in leading the digital identity revolution.The partner of choice for businesses who need to rapidly and effortlessly...

Kroll is the world’s premier provider of services and digital products related to valuation, governance, risk and transparency. We work with clients across diverse sectors in the areas of valuation, expert services, investigations, cyber security, corporate finance, restructuring, legal and business solutions, data analytics and regulatory compliance. Our firm has nearly 5,000 professionals in 30 countries and territories around the...

Optro (formerly AuditBoard) helps enterprises transform risk into opportunity, redefining GRC through an agentic system of action. More than 50% of the Fortune 500 trust Optro to elevate audit, risk, and compliance in addressing a new era of risk. Optro is top-rated by customers on G2 and was named a Leader in the 2025 Gartner® Magic Quadrant™ for Governance, Risk...

As a global leader in innovative wealth management, asset servicing and investment solutions, Northern Trust (Nasdaq: NTRS) is proud to guide the world’s most successful individuals, families and institutions by remaining true to our enduring principles of service, expertise and integrity. A globally recognized Fortune 500 Company in continuous operation since 1889, we’ve built a legacy of empowering clients to reach...