Explore Top Tech Companies
All Filters
Remote jobs

Industry

Tech Stack

Size

Top London Cybersecurity Companies (109)

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 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.


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.


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.


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.


Healthtech • Security • Software • Cybersecurity
7 Offices
957 Employees

For over 20 years, we’ve been redefining how life- and mission-critical industries enable, control, and monitor digital identities to deliver fast access, improve security, and ensure compliance. Customer success is our DNA, which is why we’re trusted by the most prominent healthcare and enterprise organizations in 45 countries.


Cloud • Information Technology • Security • Software • Cybersecurity
9 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 • Cloud • Information Technology • Security • Software • Cybersecurity • Data Privacy
4 Offices
330 Employees

We are a cybersecurity software company. Coro’s AI enabled Modular Cybersecurity Platform is the only one in the industry specifically designed to provide Mid-Market customers with scalable and affordable “enterprise grade” protection for all of their priority threat vectors. Our platform has aided us in being able to raise $100 million in Series D funding in March of 2024, bringing the total funding raised to $255 million over the last 24 months, and acquiring our first company, Privatise. The funding is primarily being used to enhance the Coro Cybersecurity SaaS platform and for additional headcount growth, as Coro continues to expand globally. Looking to IPO in the next few years, it is a great time to join a fast-growing pre-IPO organization.


Artificial Intelligence • Information Technology • Machine Learning • Security • Software • Cybersecurity • Generative AI
8 Offices
850 Employees

Exabeam is a global cybersecurity leader that delivers AI-driven security operations. High-integrity data ingestion, powerful analytics, and workflow automation power the industry’s most advanced self-managed and cloud-native security operations platform for threat detection, investigation, and response (TDIR). With a history of leadership in SIEM and UEBA, and a legacy rooted in AI, Exabeam empowers global security teams to combat cyberthreats, mitigate risk, and streamline security operations. Learn more at www.exabeam.com.


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.


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

Motorola Solutions is solving for safer. We build and connect technologies to help protect people, property and places. Our solutions enable the collaboration between public safety agencies and enterprises that’s critical for a proactive approach to safety and security. Learn more about how we’re solving for safer communities, safer schools, safer hospitals, safer businesses – safer everywhere.


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

Every day, the world gets more digital thanks to tens of millions of developers building the future faster than ever. But with exponential growth comes exponential risk, as outnumbered security teams struggle to secure mountains of code. This is where Snyk (pronounced “sneak”) comes in. Snyk is a developer security platform that makes it easy for development teams to find, prioritize, and fix security vulnerabilities in code, dependencies, containers, and cloud infrastructure — and do it all right from the start.


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.


Big Data • Cloud • Software • Cybersecurity • Quantum Computing
8 Offices
75,792 Employees

Atos is a global leader in digital transformation with 110,000 employees and annual revenue of € 12 billion. European number one in Cybersecurity, Cloud and High-Performance Computing, the Group provides tailored end-to-end solutions for all industries in 73 countries. Pioneer in decarbonization services and products, Atos is committed to a secure and decarbonized digital for its clients. Atos operates under the brands Atos and Atos|Syntel. Atos is a SE (Societas Europaea), listed on the CAC40 Paris stock index. The purpose of Atos is to help design the future of the information space. Its expertise and services support the development of knowledge, education and research in a multicultural approach and contribute to the development of scientific and technological excellence. Across the world, the Group enables its customers and employees, and members of societies at large to live, work and develop sustainably, in a safe and secure information space.


Cloud • Security • Cybersecurity
London, England
26 Employees

A super scalable way to find and secure all your cloud identities


Cloud • Information Technology • Software • Cybersecurity
London, England
13 Employees

We work with companies and organisations around the world on a daily basis. Our clients range from major global financial institutions and professional services firms to leading international retailers and retail brands and from large scale, heavy engineering companies to cutting edge technology companies across the globe. We work collaboratively with your in-house and external teams. Only when we truly understand you will we recommend the most effective security measures to minimise the risks you face. Whether we’re working with a global investment bank or small technology start-up our approach is always the same; our security advice should be straightforward and delivered without drama. Most importantly, that our approach to security should take the specific risks faced by you into account, in the context of your individual circumstances. Whether you have a specific requirement, a question you’d like answered or would just like an informal chat, contact us today to learn more about how our straightforward approach can help you meet your security needs


Cybersecurity
3 Offices
30 Employees

watchTowr is redefining External Attack Surface Management with its Continuous Automated Red Teaming platform, built by offensive security experts and backed by real-world vulnerability research. Critical infrastructure and Fortune 500 companies globally trust watchTowr to continuously validate and strengthen their security postures. If there’s a way to compromise an organization, the watchTowr Platform will find it.


Cybersecurity • Data Privacy
London, England
229 Employees

Callsign is pioneering digital trust through proprietary technology that uniquely mimics the way humans identify each other in the real world. Positive identification of genuine users delivers privacy, safety and minimal friction whilst ensuring that bad actors are blocked. Through a simple Swipe or Type, users can be personally recognized to a 99.999% accuracy, delivering the highest fidelity AI based user recognition for the digital world.


Big Data • Cloud • Consumer Web • Healthtech • Software • Cybersecurity • Generative AI
22 Offices
52,650 Employees

Since 1993, EPAM Systems, Inc. (NYSE: EPAM) has leveraged its software engineering expertise to become a leading global product development, digital platform engineering, and top digital and product design agency. Through its ‘Engineering DNA’ and innovative strategy, consulting, and design capabilities, EPAM works in collaboration with its customers to deliver next-gen solutions that turn complex business challenges into real business outcomes. EPAM’s global teams serve customers in more than 45 countries across five continents. As a recognized market leader in multiple categories among top global independent research agencies, EPAM was one of only four technology companies to appear on Forbes 25 Fastest Growing Public Tech Companies list every year of publication since 2013 and ranked as the top IT services company on Fortune’s 100 Fastest-Growing Companies list in 2019, 2020, and 2021.


Aerospace • Security • Cybersecurity • Industrial
9 Offices
108,588 Employees

Customer Focus, Innovation and Purpose are Built Into Everything We Do. Lockheed Martin. Your Mission is Ours ™. Headquartered in Bethesda, Maryland, Lockheed Martin is a global security and aerospace company principally engaged in the research, design, development, manufacture, integration and sustainment of advanced technology systems, products and services.


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.