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Top London Security Companies (148)

Datadog
Artificial Intelligence • Cloud • Security • Software • Cybersecurity
16 Offices
6,500 Employees
104 Benefits Hiring Now
We are building the monitoring and security platform for developers, IT ops teams and business users in the cloud age.

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...

Datadog
SailPoint
Artificial Intelligence • Cloud • Sales • Security • Software • Cybersecurity • Data Privacy

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...

SailPoint
AlertMedia
Artificial Intelligence • Cloud • Information Technology • Security • Social Impact • Software
AlertMedia helps companies keep their people safe, informed, and connected during emergencies and other critical events.

AlertMedia helps organizations protect their people and businesses through all phases of an emergency. Our award-winning threat intelligence, emergency communication, and travel risk management solutions help companies of all sizes identify, respond to, and recover from critical events faster and more confidently. Our team of in-house intelligence analysts and meteorologists work around the clock to monitor thousands of data sources...

AlertMedia
Nasuni
Artificial Intelligence • Big Data • Cloud • Security • Software • Cybersecurity • Infrastructure as a Service (IaaS)
6 Offices
550 Employees
33 Benefits Hiring Now
Nasuni is the unstructured data foundation for enterprise teams and AI, powering where work happens.

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...

Nasuni
Snyk
Artificial Intelligence • Cloud • Information Technology • Security • Software • Cybersecurity • Data Privacy
12 Offices
1,000 Employees
107 Benefits Hiring Now
Snyk helps organizations build fast and stay secure in the age of AI.

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....

Snyk
Cloudflare
Cloud • Information Technology • Security • Software • Cybersecurity
13 Offices
4,400 Employees
67 Benefits Hiring Now
Helping Build a Better Internet

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...

Cloudflare
Hiya Inc.
Artificial Intelligence • Cloud • Mobile • Security • Software
3 Offices
145 Employees
40 Benefits Hiring Now
Hiya makes phone calls worth trusting again, combining carrier-grade security and AI insight to protect people from scam

Hiya is trusted by global businesses, carriers, and consumers to enable secure, engaging connections and stop unwanted calls. Hiya is pioneering the next generation of AI-powered voice intelligence with real-time analysis and an AI assistant to enhance voice protection, productivity, and call performance. Hiya connects businesses with their customers, helps carriers secure their networks, and protects people from spam and...

Hiya Inc.
Sonar
Artificial Intelligence • Cloud • Security • Software
6 Offices
800 Employees
50 Benefits Hiring Now
Sonar is the trust & verification layer for AI and agentic coding, and the industry standard for automated code review.

Sonar provides the essential verification layer for the AI-driven development era, ensuring all code—whether human-written or AI-generated—is code you can trust. Today, AI coding tools are generating explosive volumes of code. This has created an "engineering productivity paradox" : faster code writing doesn't automatically lead to faster, safer software delivery. The new bottleneck is verification. Sonar solves this. Integrating code quality and...

Sonar
Zscaler
Cloud • Information Technology • Security • Software • Cybersecurity
32 Offices
8,697 Employees
49 Benefits Hiring Now
Secure, simplify, and transform your enterprise with zero trust.

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.

Zscaler
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LogicGate
Cloud • Information Technology • Security • Software
2 Offices
202 Employees
49 Benefits Hiring Now
LogicGate® is a leading AI Governance, Risk, and Compliance (GRC) solution.

LogicGate® is the leading AI GRC platform for the Enterprise, helping governance, risk, and compliance teams limit surprises, strengthen resilience, augment program performance, and confidently quantify impact and business value. Built to provide a centralized view of risk and compliance, with AI intelligence woven into the platform's core, LogicGate delivers real-time insights and actionable data to help drive current business...

LogicGate
Imprivata
Healthtech • Information Technology • Security • Software • Cybersecurity
8 Offices
1,372 Employees
57 Benefits Hiring Now
Empowering secure digital identities for healthcare and beyond.

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...

Imprivata
Cybsafe
Security
London
116 Employees
8 Benefits Hiring Now

CybSafe measures and tracks security behaviour to improve security controls and awareness activities. Follow for security awareness, behaviour and culture updates, useful reads and job postings.

Cybsafe
Johnson Controls
Other • Security
55 Offices
100,000 Employees
39 Benefits Hiring Now

At Johnson Controls, we transform the environments where people live, work, learn and play. From optimizing building performance to improving safety and enhancing comfort, we drive the outcomes that matter most. Dedicated to protecting the environment, we deliver our promise in industries such as healthcare, education, data centers and manufacturing. With a global team of 100,000 experts in more than...

Johnson Controls
Darktrace
Security • Cybersecurity
27 Offices
1,763 Employees
11 Benefits Hiring Now

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...

Darktrace
Northrop Grumman
Aerospace • Logistics • Security • Software • Cybersecurity
33 Offices
85,636 Employees
42 Benefits Hiring Now

We are a close-knit community of big thinkers collaborating to keep the world safe. Our passion, creativity and expertise bring next-level technology solutions to life in autonomous systems, cyber, C4ISR, strike, space, and logistics and modernization for our customers around the globe. On the Northrop Grumman team, you’ll join our pursuit of excellence immersed in a dynamic culture of innovation...

Northrop Grumman
Kroll
Big Data • Security • Software • Analytics • Cybersecurity
25 Offices
5,001 Employees
17 Benefits Hiring Now

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...

Kroll
Entrust
Information Technology • Security • Software
12 Offices
2,800 Employees
28 Benefits Hiring Now

Entrust offers identity-based security software and services.

Entrust
Ping Identity
Cloud • Security • Software
8 Offices
2,300 Employees
60 Benefits Hiring Now

At Ping Identity, we make it possible to trust every digital moment across customers, employees, partners, and non-human identities. Whether you're securing millions of users, fighting fraud, simplifying third-party access, or going passwordless, establishing trust shouldn’t slow you down. Our enterprise-grade identity platform is built for scale, speed, and flexibility and works seamlessly with your existing cloud, hybrid, and on-prem...

Ping Identity
SoSafe
Security • Software
7 Offices
457 Employees
1 Benefits Hiring Now

SoSafe empowers organizations to build a security culture and mitigate risk with its GDPR-compliant awareness programs. Powered by behavioral science and smart algorithms, SoSafe delivers engaging personalized learning experiences and smart attack simulations that turn employees into active assets against online threats. Comprehensive analytics measure ROI and tell organizations where vulnerabilities lie. Programs are easy to deploy and scale, fostering...

SoSafe
Akamai Technologies
Cloud • Security • Software • Cybersecurity
24 Offices
10,285 Employees
27 Benefits Hiring Now
Akamai powers and protects life online by solving the toughest challenges and turning the impossible into the possible.

At Akamai, we make life better for billions of people, billions of times a day. Every moment, billions of people, all over the world, are using the internet to shop, play games, look after finances, learn remotely, share videos, connect across the world, and so much more. These life-shaping digital experiences wouldn’t be possible without Akamai. We power and protect life...

Akamai Technologies

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